Cerebras Inference Free Trial
Cerebras Trial credit
The catch: Needs a card, and the $5 credit expires after 30 days; after that API and Playground access stop until you buy credits.
| Access | Trial credit |
|---|---|
| Free limits | No permanent free tier any more. Free Trial: $5 in credits after adding a verified payment method, expiring 30 days after they are granted ('Cerebras doesn't currently offer a no-cost tier that renews automatically'). Free Trial rate limits: gpt-oss-120b and qwen-3.8-27b each 5 RPM, 30K uncached TPM (90K total TPM incl. cached), 1M tokens/hour, 1M tokens/day. Free-tier context: 65k tokens on gpt-oss-120b (131k paid), 64k on qwen-3.8-27b (128k paid); gpt-oss-120b max output 32k on free. |
| Modality | text, code |
| Credit card | Required |
| Commercial use | – |
| Trains on your data | No |
| Licence or terms | Cerebras Terms of Service (effective 27 Aug 2024) |
| Context window | 65,000 tokens |
| Model id | gpt-oss-120b |
| Base URL | https://api.cerebras.ai/v1 |
| Last checked | 2 Oct 2026 |
How to use gpt-oss-120b, Qwen3.8 27B
It speaks the OpenAI API at https://api.cerebras.ai/v1, so the OpenAI SDK you already use works once you change the base URL and key.
Quickstart
curl https://api.cerebras.ai/v1/chat/completions -H "Content-Type: application/json" -H "Authorization: Bearer $KEY" -d '{"model":"gpt-oss-120b","messages":[{"role":"user","content":"Hello"}]}'Paste into Claude Code
I want to use the free AI model "gpt-oss-120b, Qwen3.8 27B" from Cerebras (model id: gpt-oss-120b) in my project. Please: 1. Check the provider docs and give me the exact steps to get a free API key. 2. Give me a minimal working example that reads the key from an environment variable. 3. Tell me the real free limits and any catch (commercial use, card, data use). Listed limits: $5 credit for 30 days, 5 RPM. 4. If the same provider has a more generous free option, mention it.
Before you ship on it
- Needs a card, and the $5 credit expires after 30 days; after that API and Playground access stop until you buy credits.
- Cerebras Terms of Service (effective 27 Aug 2024) do not address commercial use of the Free Trial; for API use, output ownership follows the third-party model's terms and Cerebras claims no ownership of outputs.
- Free tiers are shared capacity: treat the limits as a ceiling, not a promise, and keep a paid fallback.
Questions
Is Cerebras Inference Free Trial free?
Yes. Cerebras offers it as trial credit, with these limits: $5 credit for 30 days, 5 RPM.
Can I use Cerebras Inference Free Trial commercially?
The provider’s terms do not say. Ask them before you build a product on it.
How do I start with Cerebras Inference Free Trial?
It speaks the OpenAI API at https://api.cerebras.ai/v1, so the OpenAI SDK you already use works once you change the base URL and key.
Source: inference-docs.cerebras.ai/support/rate-limits, checked 2 Oct 2026.