x-ai/grok-code-fast-1:free by Kilo Code

Free models with no credit card required. `kilo-auto/free` auto-router routes to minimax/minimax-m2.5:free (80%) and stepfun/step-3.5-flash:free (20%).

Access
Free API tier
Free limits
~200 req/hr
Modality
code, text
Credit card
Not required
Commercial use
Unclear, verify
Context window
256,000 tokens
Model ID
x-ai/grok-code-fast-1:free
Base URL
https://api.kilo.ai/api/gateway
Last verified
June 2026

Quickstart

curl https://api.kilo.ai/api/gateway/chat/completions \
  -H "Authorization: Bearer $KEY" \
  -d '{"model":"x-ai/grok-code-fast-1:free","messages":[{"role":"user","content":"hi"}]}'

Frequently asked

Is x-ai/grok-code-fast-1:free free?

Yes. Kilo Code offers it as Free API tier with these limits: ~200 req/hr. No credit card is required.

Can I use x-ai/grok-code-fast-1:free commercially?

Commercial terms are not clearly documented. Check the provider's current terms before shipping.

How do I start using x-ai/grok-code-fast-1:free?

Free models with no credit card required. `kilo-auto/free` auto-router routes to minimax/minimax-m2.5:free (80%) and stepfun/step-3.5-flash:free (20%).

Building with this model?

We wire free-tier and open-weight models into production stacks: evals against your real inputs, failover, cost caps.

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