Where to use GPT-5.6 Luna for free
2 free ways to use GPT-5.6 Luna (OpenAI): rate limits per source, context window, tool calling and vision support.
OpenAI · 1,050k context · tool calling · vision · 1 of 2 verified · how we verify
Free sources
Verified first
| Offer | Served as | RPM | RPD | TPM | Context | Card | Resets | Status |
|---|---|---|---|---|---|---|---|---|
 OpenAI for Startups | gpt-5.6-luna | — | — | — | 1,050k | no card | — | Verified · Oct 12, 2026 |
GPT-5.6 Luna | 80 | — | 100,000 | 1,050k | no card | resets monthly | Re-verification in progress |
Related
- GPT OSS 120B8 sources
- gpt-oss-20b3 sources
- gpt-6.1-sol2 sources
- gpt-6-astra2 sources
- GPT-6 Luna2 sources
- GPT Image 22 sources
- gpt-5.6-sol1 source
- GPT-6 Luna Decisions1 source
Frequently asked questions
- Where can I use GPT-5.6 Luna for free?
- 2 listed offers serve GPT-5.6 Luna free: OpenAI for Startups, CleanAPIs free monthly tokens. Published rate limits are listed per source; a dash means the provider publishes none.
- What context window does GPT-5.6 Luna have on free tiers?
- The largest context any listed free source documents for GPT-5.6 Luna is 1,050k tokens. Some free tiers cap it lower; the per-source value is in the table.
- Does GPT-5.6 Luna support tool calling and vision?
- As documented by its free sources, GPT-5.6 Luna supports tool calling and accepts image input.
Limits are what each provider publishes; a dash means the provider publishes none, and no number here is guessed. Rows are re-checked monthly (how we verify).