| Type | Ongoing free tier · perpetual | Ongoing free tier · renewing-quota |
|---|
| What's free | Free to use research showcase API — all Typhoon models at $0 | Gemini 2.5 Flash, 2.5 Flash-Lite, 2.5 Pro (limited), embeddings, TTS models |
|---|
| Rate limits | typhoon-asr-realtime: 100 reqs/minute (documented on the ASR page); LLM/OCR models: no published quotas (beta service) | Per-model; Google no longer publishes the free-tier numbers in its public docs — they are shown only on the AI Studio rate-limit page after sign-in |
|---|
| Expires | no expiry | no expiry |
|---|
| The catch | By SCB 10X, the venture arm of Siam Commercial Bank, focused on Thai-language models. The free catalog spans LLMs (typhoon-v2.5-30b-a3b-instruct), OCR (typhoon-ocr family) and realtime Thai ASR (typhoon-asr-realtime, typhoon-isan-asr-realtime) — the hosted API is OpenAI-compatible, including audio transcriptions. Beta, provided as-is with no formal support; usage data is collected to improve the model; SCB claims no rights in outputs. Sign up for a free API key at opentyphoon.ai. | Free-tier prompts/outputs may be used by Google to improve its products outside the UK/CH/EEA/EU. Since the 2026-03-23 terms, only Paid Services may serve API clients to end users in the EEA/CH/UK |
|---|
| Credit card | not required | not required |
|---|
| Phone verification | not required | not required |
|---|
| Commercial use | allowed | allowed |
|---|
| OpenAI-compatible | yes https://api.opentyphoon.ai/v1
| yes https://generativelanguage.googleapis.com/v1beta/openai/
|
|---|
| Modalities | text, audio | text, vision, embeddings, audio |
|---|
| Free models (sample) | typhoon-asr-realtime typhoon-isan-asr-realtime typhoon-ocr typhoon-ocr-preview typhoon-ocr-v1.5 typhoon-v2.5-30b-a3b-instruct | gemini-2.5-flash gemini-2.5-flash-lite gemini-2.5-pro |
|---|
| Official docs | docs.opentyphoon.ai/en/faq/ | ai.google.dev/gemini-api/docs/rate-limits |
|---|
| Last verified | 2026-08-14 | 2026-10-08 |
|---|