{
  "dataset": "free-llm-api-hub",
  "version": "2.6.0",
  "generated": "2026-07-31",
  "license": "MIT",
  "homepage": "https://freellmapihub.com/",
  "docs": "https://freellmapihub.com/api/",
  "modality": "audio",
  "count": 25,
  "providers": [
    {
      "slug": "google-gemini",
      "name": "Google Gemini API (AI Studio)",
      "category": "ongoing",
      "free_type": "renewing-quota",
      "free_tier": "Gemini 2.5 Flash, 2.5 Flash-Lite, 2.5 Pro (limited), embeddings, TTS models",
      "rate_limits": "Varies by model, roughly 5-30 req/min and 20-500 req/day depending on model",
      "notes": "Free-tier prompts/outputs may be used by Google to improve its products when used outside the UK/CH/EEA/EU",
      "best_for": "The only frontier-class model with a genuine free tier",
      "modalities": [
        "text",
        "vision",
        "embeddings",
        "audio"
      ],
      "models_free": [
        "gemini-2.5-flash",
        "gemini-2.5-flash-lite",
        "gemini-2.5-pro"
      ],
      "expires": null,
      "docs_url": "https://ai.google.dev/gemini-api/docs/rate-limits",
      "phone_required": false,
      "card_required": false,
      "commercial_ok": true,
      "openai_compatible": true,
      "openai_base_url": "https://generativelanguage.googleapis.com/v1beta/openai/",
      "verified": true,
      "last_verified": "2026-07-11"
    },
    {
      "slug": "groq",
      "name": "Groq",
      "category": "ongoing",
      "free_type": "renewing-quota",
      "free_tier": "Open-weight models (Llama, Qwen, GPT-OSS) plus Whisper, no credit card required",
      "rate_limits": "e.g. llama-3.1-8b-instant: 30 RPM/14.4K RPD/6K TPM/500K TPD; llama-3.3-70b-versatile: 30 RPM/1K RPD/12K TPM/100K TPD; qwen3-32b: 60 RPM/1K RPD/6K TPM/500K TPD; similar for GPT-OSS and Whisper models",
      "notes": "Limits apply at the organization level, not per API key. Phone verification required at signup",
      "best_for": "Lowest-latency inference for open-weight models",
      "modalities": [
        "text",
        "audio"
      ],
      "models_free": [
        "llama-3.3-70b-versatile",
        "llama-3.1-8b-instant",
        "openai/gpt-oss-120b",
        "openai/gpt-oss-20b",
        "whisper-large-v3-turbo",
        "whisper-large-v3"
      ],
      "expires": null,
      "docs_url": "https://console.groq.com/docs/rate-limits",
      "phone_required": true,
      "card_required": false,
      "commercial_ok": true,
      "openai_compatible": true,
      "openai_base_url": "https://api.groq.com/openai/v1",
      "verified": true,
      "last_verified": "2026-07-11"
    },
    {
      "slug": "cloudflare-workers-ai",
      "name": "Cloudflare Workers AI",
      "category": "ongoing",
      "free_type": "renewing-quota",
      "free_tier": "10,000 Neurons/day, all account plans",
      "rate_limits": "30+ models: LLMs (Llama, Mistral, DeepSeek, Qwen...), embeddings, image, audio",
      "notes": "Resets daily at 00:00 UTC; overage on a Workers Paid plan bills at $0.011/1,000 Neurons",
      "best_for": "Highest free daily volume for a real side project",
      "modalities": [
        "text",
        "embeddings",
        "image",
        "audio"
      ],
      "models_free": [
        "@cf/meta/llama-3.3-70b-instruct-fp8-fast",
        "@cf/meta/llama-3.1-8b-instruct",
        "@cf/mistralai/mistral-small-3.1-24b-instruct",
        "@cf/qwen/qwen2.5-coder-32b-instruct",
        "@cf/deepseek-ai/deepseek-r1-distill-qwen-32b",
        "@cf/google/gemma-3-12b-it"
      ],
      "expires": null,
      "docs_url": "https://developers.cloudflare.com/workers-ai/platform/pricing/",
      "phone_required": false,
      "card_required": false,
      "commercial_ok": true,
      "openai_compatible": true,
      "openai_base_url": "https://api.cloudflare.com/client/v4/accounts/{account_id}/ai/v1",
      "verified": true,
      "last_verified": "2026-07-11"
    },
    {
      "slug": "huggingface",
      "name": "HuggingFace",
      "category": "ongoing",
      "free_type": "recurring-credit",
      "free_tier": "Free CPU Basic + ZeroGPU for Spaces; Inference Providers has a monthly credit ($0.10/mo on Free plan, $2.00/mo on PRO/Team/Enterprise)",
      "rate_limits": "No RPM/TPM published, only credit amounts",
      "notes": "Credits only apply with \"Routed by Hugging Face\" billing, not with a Custom Provider Key",
      "best_for": "Router access to many open-weight providers under one key",
      "modalities": [
        "text",
        "image",
        "audio",
        "embeddings"
      ],
      "models_free": null,
      "expires": null,
      "docs_url": "https://huggingface.co/docs/inference-providers/en/pricing",
      "phone_required": null,
      "card_required": false,
      "commercial_ok": null,
      "openai_compatible": true,
      "openai_base_url": "https://router.huggingface.co/v1",
      "verified": true,
      "last_verified": "2026-07-30"
    },
    {
      "slug": "scaleway",
      "name": "Scaleway Generative APIs",
      "category": "trial",
      "free_type": "trial-credit",
      "free_tier": "1,000,000 tokens free + 60 min Whisper transcription; billing starts at token 1,000,001",
      "rate_limits": "Gemma, Llama, Mistral, Qwen",
      "notes": "European provider (France). Free allowance is a one-time token bucket, not time-limited",
      "best_for": "EU-hosted open models with 1M free tokens",
      "modalities": [
        "text",
        "audio"
      ],
      "models_free": [
        "llama-3.3-70b-instruct",
        "qwen3-235b-a22b-instruct-2507",
        "mistral-small-3.2-24b-instruct-2506",
        "deepseek-r1-distill-llama-70b",
        "gemma-3-27b-it",
        "qwen2.5-coder-32b-instruct"
      ],
      "expires": null,
      "docs_url": "https://www.scaleway.com/en/pricing/model-as-a-service/",
      "phone_required": null,
      "card_required": null,
      "commercial_ok": null,
      "openai_compatible": true,
      "openai_base_url": "https://api.scaleway.ai/v1",
      "verified": true,
      "last_verified": "2026-07-30"
    },
    {
      "slug": "deepgram",
      "name": "Deepgram",
      "category": "trial",
      "free_type": "trial-credit",
      "free_tier": "$200 free credit on signup (no card, no expiration) — Nova speech-to-text and Aura text-to-speech at pay-as-you-go rates",
      "rate_limits": "STT pre-recorded up to 50 concurrent; STT streaming up to 150; TTS REST up to 15; TTS streaming up to 45",
      "notes": "No card and no expiration on the credit. Data catch: the Model Improvement Program is opt-OUT — send mip_opt_out=true per request to keep your data out of training. Native REST/WebSocket API, not OpenAI-compatible.",
      "best_for": "Biggest free credit here, for speech (STT/TTS)",
      "modalities": [
        "audio"
      ],
      "models_free": null,
      "expires": null,
      "docs_url": "https://deepgram.com/pricing",
      "phone_required": false,
      "card_required": false,
      "commercial_ok": true,
      "openai_compatible": false,
      "openai_base_url": null,
      "verified": true,
      "last_verified": "2026-07-30"
    },
    {
      "slug": "assemblyai",
      "name": "AssemblyAI",
      "category": "trial",
      "free_type": "trial-credit",
      "free_tier": "$50 free credit on signup (no card) — pre-recorded & streaming speech-to-text, Speech Understanding, and an OpenAI-compatible LLM Gateway (25+ models)",
      "rate_limits": "Free tier: 5 parallel transcriptions; streaming 5 new streams/min; global 20k requests / 5 min",
      "notes": "One-time credit, not renewing. Catch: the default model differs between free and paid accounts — set speech_models explicitly to avoid cost jumps on upgrade. Only the LLM Gateway is OpenAI-compatible.",
      "best_for": "Free speech-to-text plus an OpenAI-compatible LLM gateway",
      "modalities": [
        "audio",
        "text"
      ],
      "models_free": null,
      "expires": null,
      "docs_url": "https://www.assemblyai.com/pricing",
      "phone_required": false,
      "card_required": false,
      "commercial_ok": true,
      "openai_compatible": true,
      "openai_base_url": "https://llm-gateway.assemblyai.com/v1",
      "verified": true,
      "last_verified": "2026-07-30"
    },
    {
      "slug": "pollinations",
      "name": "Pollinations.ai",
      "category": "ongoing",
      "free_type": "perpetual",
      "free_tier": "Free hosted image models (Flux, Turbo, Stable Diffusion) via a simple GET URL; also text and audio. No signup required to start",
      "rate_limits": "Anonymous ~1 request / 15s; free registration (Seed tier) ~1 request / 5s",
      "notes": "Anonymous free images may carry a watermark (since 2025); free registration removes it via the nologo parameter. No card, no phone. Commercial use is not explicitly guaranteed in the docs.",
      "best_for": "No-signup free image generation (Flux/SD)",
      "modalities": [
        "image",
        "text",
        "audio"
      ],
      "models_free": [
        "openai-fast"
      ],
      "expires": null,
      "docs_url": "https://github.com/pollinations/pollinations/blob/master/APIDOCS.md",
      "phone_required": false,
      "card_required": false,
      "commercial_ok": null,
      "openai_compatible": false,
      "openai_base_url": null,
      "verified": true,
      "last_verified": "2026-07-30"
    },
    {
      "slug": "twelve-labs",
      "name": "Twelve Labs (Marengo Embed)",
      "category": "ongoing",
      "free_type": "renewing-quota",
      "free_tier": "Free plan: the Marengo Embed API for all input types (video, audio, image, text) at no cost, plus ~600 min indexing",
      "rate_limits": "Embed video/audio: 3,000 RPD, 25 RPM; embed text/image: 3,000 RPD, 600 RPM",
      "notes": "No credit card for the Free plan, but indexed data expires after 90 days unless upgraded. Marengo produces multimodal embeddings. Not OpenAI-compatible.",
      "best_for": "Free multimodal (video/audio/image/text) embeddings",
      "modalities": [
        "embeddings",
        "vision",
        "audio",
        "text"
      ],
      "models_free": null,
      "expires": null,
      "docs_url": "https://www.twelvelabs.io/pricing",
      "phone_required": null,
      "card_required": false,
      "commercial_ok": null,
      "openai_compatible": false,
      "openai_base_url": null,
      "verified": true,
      "last_verified": "2026-07-30"
    },
    {
      "slug": "speechmatics",
      "name": "Speechmatics",
      "category": "ongoing",
      "free_type": "renewing-quota",
      "free_tier": "3,000 minutes (50 hours)/month speech-to-text + 1,000,000 characters (~20 hrs)/month text-to-speech",
      "rate_limits": "2 concurrent real-time sessions on the free plan",
      "notes": "No credit card required to start; add a card only when you exceed the free limit. Recurring monthly allowance covering both STT and TTS. Commercial-use permission not explicitly stated on the pricing page.",
      "best_for": "Best free STT tier (50 hrs/mo, no card)",
      "modalities": [
        "audio"
      ],
      "models_free": null,
      "expires": null,
      "docs_url": "https://www.speechmatics.com/pricing",
      "phone_required": null,
      "card_required": false,
      "commercial_ok": null,
      "openai_compatible": false,
      "openai_base_url": null,
      "verified": true,
      "last_verified": "2026-07-30"
    },
    {
      "slug": "speechify",
      "name": "Speechify API",
      "category": "ongoing",
      "free_type": "renewing-quota",
      "free_tier": "50,000 characters/month TTS (hard cap) + 60 min/month voice agents",
      "rate_limits": "3 concurrent calls; hard cap pauses at the limit (no overages)",
      "notes": "Commercial use is allowed on the free tier. No credit card required. Hard monthly cap that pauses at the limit.",
      "best_for": "Free commercial TTS (50k chars/mo)",
      "modalities": [
        "audio"
      ],
      "models_free": null,
      "expires": null,
      "docs_url": "https://speechify.ai/pricing",
      "phone_required": false,
      "card_required": false,
      "commercial_ok": true,
      "openai_compatible": null,
      "openai_base_url": null,
      "verified": true,
      "last_verified": "2026-07-30"
    },
    {
      "slug": "hume-ai",
      "name": "Hume AI (Octave TTS)",
      "category": "ongoing",
      "free_type": "renewing-quota",
      "free_tier": "10,000 characters/month TTS (~10 minutes) on the Free plan",
      "rate_limits": "15 requests per minute",
      "notes": "The free plan includes a commercial license; overage billed at $0.15/1,000 chars. No card stated as required to start. Not OpenAI-compatible.",
      "best_for": "Expressive TTS with a commercial free tier",
      "modalities": [
        "audio"
      ],
      "models_free": null,
      "expires": null,
      "docs_url": "https://www.hume.ai/pricing",
      "phone_required": null,
      "card_required": false,
      "commercial_ok": true,
      "openai_compatible": false,
      "openai_base_url": null,
      "verified": true,
      "last_verified": "2026-07-30"
    },
    {
      "slug": "unreal-speech",
      "name": "Unreal Speech",
      "category": "ongoing",
      "free_type": "renewing-quota",
      "free_tier": "250,000 characters/month TTS (~6 hours of audio)",
      "rate_limits": "Tiered endpoints for different text lengths; specific caps not documented",
      "notes": "Commercial use allowed, but free-plan users must attribute Unreal Speech with a link when publishing audio. First-party REST endpoints. Card requirement not stated.",
      "best_for": "Largest free TTS (250k chars/mo, attribution)",
      "modalities": [
        "audio"
      ],
      "models_free": null,
      "expires": null,
      "docs_url": "https://unrealspeech.com/pricing",
      "phone_required": null,
      "card_required": null,
      "commercial_ok": true,
      "openai_compatible": false,
      "openai_base_url": null,
      "verified": true,
      "last_verified": "2026-07-30"
    },
    {
      "slug": "elevenlabs",
      "name": "ElevenLabs",
      "category": "ongoing",
      "free_type": "renewing-quota",
      "free_tier": "10,000 credits/month shared across Text-to-Speech, Speech-to-Text and more (~10 min TTS/month)",
      "rate_limits": "Concurrency tied to the Free plan (not numerically published)",
      "notes": "The free tier is NON-COMMERCIAL only per the Terms of Use (a commercial license begins on paid Starter, $6/mo), and historically required attribution. API access is available on the free plan. No credit card to sign up.",
      "best_for": "Best-known TTS voices (free tier is non-commercial)",
      "modalities": [
        "audio"
      ],
      "models_free": null,
      "expires": null,
      "docs_url": "https://elevenlabs.io/pricing",
      "phone_required": false,
      "card_required": false,
      "commercial_ok": false,
      "openai_compatible": false,
      "openai_base_url": null,
      "verified": true,
      "last_verified": "2026-07-30"
    },
    {
      "slug": "sarvam-ai",
      "name": "Sarvam AI",
      "category": "trial",
      "free_type": "trial-credit",
      "free_tier": "₹100 in free credits on signup, usable across all APIs including the Sarvam-M chat/LLM API and speech (STT/TTS)",
      "rate_limits": "Not published; bounded by the ₹100 credit",
      "notes": "One-time signup credit shared across all APIs; card/phone requirement not stated on the docs. India-focused provider (pricing in INR), strong Indic-language models.",
      "best_for": "Indic-language chat + speech via one OpenAI-compatible key",
      "modalities": [
        "text",
        "audio"
      ],
      "models_free": null,
      "expires": null,
      "docs_url": "https://docs.sarvam.ai/api/getting-started/pricing",
      "phone_required": null,
      "card_required": null,
      "commercial_ok": null,
      "openai_compatible": true,
      "openai_base_url": "https://api.sarvam.ai/v1",
      "verified": true,
      "last_verified": "2026-07-30"
    },
    {
      "slug": "gladia",
      "name": "Gladia",
      "category": "trial",
      "free_type": "trial-credit",
      "free_tier": "€50 in free credits on signup for speech-to-text (~80+ hrs pre-recorded or 60+ hrs real-time at current rates)",
      "rate_limits": "Not published; bounded by the €50 credit",
      "notes": "One-time grant with no monthly reset; prepaid model — top up once the credit is consumed. Card requirement not explicitly stated on the pricing page.",
      "best_for": "High-accuracy async + real-time transcription to trial",
      "modalities": [
        "audio"
      ],
      "models_free": null,
      "expires": null,
      "docs_url": "https://www.gladia.io/pricing",
      "phone_required": null,
      "card_required": null,
      "commercial_ok": null,
      "openai_compatible": null,
      "openai_base_url": null,
      "verified": true,
      "last_verified": "2026-07-30"
    },
    {
      "slug": "rime",
      "name": "Rime",
      "category": "trial",
      "free_type": "trial-credit",
      "free_tier": "3,000 free TTS minutes for every new account (Starter plan)",
      "rate_limits": "Starter: 20 concurrent TTS generations",
      "notes": "One-time allotment on signup; card requirement and commercial-use terms for the free minutes are not stated on the pricing page.",
      "best_for": "Low-latency conversational TTS to prototype",
      "modalities": [
        "audio"
      ],
      "models_free": null,
      "expires": null,
      "docs_url": "https://rime.ai/pricing",
      "phone_required": null,
      "card_required": null,
      "commercial_ok": null,
      "openai_compatible": null,
      "openai_base_url": null,
      "verified": true,
      "last_verified": "2026-07-30"
    },
    {
      "slug": "cartesia",
      "name": "Cartesia",
      "category": "ongoing",
      "free_type": "renewing-quota",
      "free_tier": "20,000 credits/month (~27 min of Sonic TTS or ~1h51 of Ink speech-to-text)",
      "rate_limits": "2 concurrent TTS requests, 8 concurrent STT; 20,000 credits/month",
      "notes": "Commercial use is NOT allowed on the free plan (the $5/mo Pro plan adds a commercial licence). Low-latency streaming voice over WebSocket/REST; own API (not OpenAI-shaped).",
      "best_for": "Low-latency streaming TTS + STT on a renewing monthly free quota",
      "modalities": [
        "audio"
      ],
      "models_free": null,
      "expires": null,
      "docs_url": "https://cartesia.ai/pricing",
      "phone_required": null,
      "card_required": null,
      "commercial_ok": false,
      "openai_compatible": false,
      "verified": true,
      "last_verified": "2026-07-31",
      "added": "2026-07-31"
    },
    {
      "slug": "lmnt",
      "name": "LMNT",
      "category": "ongoing",
      "free_type": "renewing-quota",
      "free_tier": "15,000 characters/month of TTS, with unlimited voice clones",
      "rate_limits": "15,000 characters/month",
      "notes": "Commercial use is not included on the free tier (the paid Indie plan and above add a commercial licence). Real-time streaming speech API.",
      "best_for": "Free real-time TTS with unlimited voice cloning",
      "modalities": [
        "audio"
      ],
      "models_free": null,
      "expires": null,
      "docs_url": "https://www.lmnt.com/pricing",
      "phone_required": null,
      "card_required": null,
      "commercial_ok": false,
      "openai_compatible": false,
      "verified": true,
      "last_verified": "2026-07-31",
      "added": "2026-07-31"
    },
    {
      "slug": "fish-audio",
      "name": "Fish Audio",
      "category": "ongoing",
      "free_type": "renewing-quota",
      "free_tier": "8,000 credits/month (~7 min of generation, up to 500 characters per generation); TTS, STT and voice cloning",
      "rate_limits": "500 characters per generation; 8,000 credits/month",
      "notes": "Free plan is personal, non-commercial only (commercial use requires a Premium subscription). No credit card required to sign up.",
      "best_for": "Free multilingual TTS with voice cloning for personal projects",
      "modalities": [
        "audio"
      ],
      "models_free": null,
      "expires": null,
      "docs_url": "https://fish.audio/plan/",
      "phone_required": null,
      "card_required": false,
      "commercial_ok": false,
      "openai_compatible": false,
      "verified": true,
      "last_verified": "2026-07-31",
      "added": "2026-07-31"
    },
    {
      "slug": "camb-ai",
      "name": "Camb.ai",
      "category": "ongoing",
      "free_type": "renewing-quota",
      "free_tier": "2,000 credits/month covering ~25K characters of MARS TTS, 125 min of STT, plus limited watermarked dubbing and translation (incl. 5 OCR pages)",
      "rate_limits": "500 chars/generation TTS, 15 min/generation STT; 2,000 credits/month",
      "notes": "Uses its own MARS8 voice models (not OpenAI-compatible). Dubbing output on the free tier is watermarked. Card and commercial terms not stated on the pricing page.",
      "best_for": "Expressive multilingual TTS, STT and dubbing on one free quota",
      "modalities": [
        "audio"
      ],
      "models_free": null,
      "expires": null,
      "docs_url": "https://www.camb.ai/pricing",
      "phone_required": null,
      "card_required": null,
      "commercial_ok": null,
      "openai_compatible": false,
      "verified": true,
      "last_verified": "2026-07-31",
      "added": "2026-07-31"
    },
    {
      "slug": "rev-ai",
      "name": "Rev AI",
      "category": "trial",
      "free_type": "trial-credit",
      "free_tier": "Free credits equivalent to 5 hours of Reverb ASR (speech-to-text), usable across all Rev AI products",
      "rate_limits": "Bounded by the 5-hour credit grant",
      "notes": "One-time signup grant (does not renew). High-accuracy English ASR. Card and commercial terms not stated on the pricing page.",
      "best_for": "5 free hours of high-accuracy speech-to-text to evaluate",
      "modalities": [
        "audio"
      ],
      "models_free": null,
      "expires": null,
      "docs_url": "https://www.rev.ai/pricing",
      "phone_required": null,
      "card_required": null,
      "commercial_ok": null,
      "openai_compatible": false,
      "verified": true,
      "last_verified": "2026-07-31",
      "added": "2026-07-31"
    },
    {
      "slug": "voicegain",
      "name": "Voicegain",
      "category": "trial",
      "free_type": "trial-credit",
      "free_tier": "$50 in free credits on signup (no credit card) — speech-to-text",
      "rate_limits": "Bounded by the $50 credit; pay-as-you-go afterward",
      "notes": "No credit card required to start — an explicit $50 developer credit. Commercial terms not stated on the pricing page. Native STT REST API.",
      "best_for": "Largest no-card speech-to-text credit ($50)",
      "modalities": [
        "audio"
      ],
      "models_free": null,
      "expires": null,
      "docs_url": "https://www.voicegain.ai/pricing",
      "phone_required": null,
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