← All models

GPT-5.6 Luna

gpt-5.6-luna

Optimized for cost-sensitive, high-volume workloads

Intelligence
52.3
Context
1.05M
Training cutoff
2026-02
Added
2026-07-11
Inputs
Vision

Providers

One route serves GPT-5.6 Luna. Every figure below is measured on that route over the selected window; a cell with too little traffic behind it says so rather than showing a number.

ProviderContextMax outputInput/1MOutput/1Mp50 TTFTp90 TTFTp50 latencyp90 latencyp50 output rateEligible callsErrorsUptimeEvidence
OpenAI only route
gpt-5.6-luna
Vision
1.05M128,000$0.20 ≤272K input$1.20 ≤272K input------------0%warming · 30m

TTFT is the median time to the first visible answer token over real ModelRelay requests, with a fixed prompt standing in for models that have no traffic yet. Speed ranks by it. Intelligence is the Artificial Analysis Intelligence Index.

Pin a request to one provider

Routing follows the priority order above and fails over on error. To require a single provider, add a provider object to the request body on the OpenAI- and Anthropic-compatible endpoints. Setting allow_fallbacks to false makes the constraint strict: the request fails rather than routing elsewhere.

OpenAI
{"provider": {"only": ["openai"]}}