What's free
Free to use research showcase API — all Typhoon models at $0
Rate limits
typhoon-asr-realtime: 100 reqs/minute (documented on the ASR page); LLM/OCR models: no published quotas (beta service)
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 models · sample
typhoon-asr-realtimetyphoon-isan-asr-realtimetyphoon-ocrtyphoon-ocr-previewtyphoon-ocr-v1.5typhoon-v2.5-30b-a3b-instructA sample of models reachable on the free tier — the live catalog changes. Pull the current set with GET https://api.opentyphoon.ai/v1/models.
Quickstart — chat completions
from openai import OpenAI
client = OpenAI(base_url="https://api.opentyphoon.ai/v1", api_key="<YOUR_FREE_API_KEY>")
resp = client.chat.completions.create(
model="typhoon-asr-realtime",
messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)…or with curl:
curl https://api.opentyphoon.ai/v1/chat/completions \
-H "Authorization: Bearer $API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"typhoon-asr-realtime","messages":[{"role":"user","content":"Hello!"}]}'Appears in
Change history
How this free tier has changed since we started tracking it (2026-08-14) — generated from the git history of providers.json.
- 2026-08-14 Updated rate limits, the catch
- 2026-08-14 Added to the hub