Cerebras
AI & ML Free account (no card)
Documentation: inference-docs.cerebras.ai ยท Checked Sep 19, 2026
About
Cerebras runs large language models on its own custom AI chips, and the result is startling speed, around 2,000 tokens per second on popular open models. The free tier gives you roughly a million tokens a day with just an email signup and no credit card. The API is OpenAI-compatible, so your existing agent code works by swapping the base URL and key. It is the best free option when your agent needs to chew through a lot of text fast, like summarizing hundreds of pages or running big batch jobs.
Details
Free to start. You may need a free key, but no credit card.
Auth: Free account (no card)
Rate limit: About 1,000,000 tokens per day free
Verified: 2026-09-19
Best for: developer business
Setup
- Create a free account at cloud.cerebras.ai and grab an API key
- Check the docs for the current list of hosted model ids
- Point your OpenAI-compatible client at https://api.cerebras.ai/v1
- Start with a summarization job and watch how fast it returns
curl https://api.cerebras.ai/v1/chat/completions \
-H "Authorization: Bearer $CEREBRAS_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "llama-3.3-70b", "messages": [{"role": "user", "content": "Summarize this"}]}'Use cases
- Bulk-summarize long documents at remarkable speed
- Power a fast agent loop that makes many model calls per task
- Run large batch classification or extraction jobs for free