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Models

GPT-5.6 Luna

gpt-5.6-lunaby GPTrecommendedFree
CompareOpen in Playground

Context

1.05M

Max output

128K

Pricing

$0.20$0/M in$0.020$0/M cached$1.20$0/M out

Fastest

1684 tok/s

Released

Jul 2026

Promotion

FreeYour limits

Waterfall

Supported parameters

primary route

Sampling

Temperature*0–2 · reasoning off onlyTop-p*0–1

Tools & structure

ToolsStrict toolsParallel tool calls*Structured output

Reasoning

Reasoningnone · low · medium · high · xhigh · maxDefaultmedium

Streaming

Streaming

* not supported on every route; the gateway adapts or drops it (with a warning) on stricter providers.

Shown for the primary route; fallback routes may differ. Sending an unsupported field? See error reference.

OpenAI docs

Quickstart

I want you to route my LLM calls for "gpt-5.6-luna" through the Experiential gateway instead of
calling the provider directly. It speaks the OpenAI Chat Completions API, so this is a base-URL
and key swap. Please:

1. Point the client at https://api.experientiallabs.ai/v1 as the base URL.
2. Authenticate with my Experiential API key from the EXPLABS_API_KEY environment variable. If
   it isn't set, stop and tell me to create one under Settings -> API Keys and export it.
3. Use the model id "gpt-5.6-luna" exactly.
4. Update every place my code builds an LLM client for this model to use that base URL and key,
   leaving streaming and tool-calls as they are.
5. Make one test call and show me the reply plus the token usage, so we confirm it runs on my
   Experiential credits.

Tell me which files you changed.

Set EXPLABS_API_KEY to an organization API key before running your agent.

Benchmarks

Release notes
  • MMLU-Propublic leaderboard · Aug 202686.5%
  • GPQA Diamondvendor reported · Aug 202692.3%
  • SWE-bench Verifiedpublic leaderboard · Aug 202693.0%
  • LiveBenchpublic leaderboard · Aug 202673.6%
  • AIME 2025public leaderboard · Aug 202699.2%
  • MATH-500public leaderboard · Aug 202693.7%
  • LMArena EloLMArena · Aug 20261429
  • Terminal-Benchvendor reported · Aug 202684.7
Status
Experiential Cloudfree tier1684 tok/s4.87s91.2%1.05M128KFreeFreeFree——activemeasured
Experiential Cloudexperiential1684 tok/s4.87s91.2%1.05M128K$0.20$1.20cache$0.020——activemeasured
Azure Foundry via Experiential Cloudexperientialgpt-5.6-luna207 tok/s3.58s98.1%1.05M128K$0.20$1.20cache$0.020——activemeasured
OpenAI via Experiential Cloudexperiential152 tok/s2.46s98.4%1.05M128K$0.20$0.40 past 272K$1.20$1.80 past 272Kcache$0.020$0.040 past 272K——activemeasured
Azure Foundrygpt-5.6-luna-2026-07-09deployed 2026-07-09207 tok/s3.58s98.1%1.05M128K$0.20≈$1.20≈cache$0.020≈——activemeasured
Bedrock via Experiential Cloud———1.05M128K$0.20≈$1.20≈cache$0.020≈——disabledestimated