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GPT-5.6 Luna

OpenAI
Model overview

gpt-5.6-luna

The efficient GPT-5.6 tier for high-volume, cost-sensitive workloads.

general LLMreasoningcodingvision-languageagentcomputer uselong contextchatcode generationsoftware engineering agentdata analysisdocument understandingenterprise access
CompareCompanyRankingsPublic signals
Representative version

gpt-5.6-luna

CompanyOpenAI
Release2026-07-09
Release typeModel release
ParametersNot disclosed
ArchitectureNot disclosed
Context1,050,000
Input modalitiestext / image
Output modalitiestext
Tool use / function callingConfirmed: Tool use, Function calling
Structured output / reasoningConfirmed: Structured output, Reasoning
Vision / audio / videoConfirmed: Vision; Not shown: Audio, Video
Open weights / LicenseNo open weights / license not applicable
openai-gpt-5-6-luna-current · License not applicable
Vendor APIAvailable
GPT-5.6 Luna Model | OpenAI APIopenai-gpt-5-6-luna-current · 2026-07-09
OpenRouterOpenRouter listed
PricingOfficial · 2026-07-09: $1 / $6
OpenRouter · 2026-07-15: $1 / $6
input / output, per 1M tokens
BenchmarkNo reliable public source
Public signalsNo reliable public source
Use casesComplex professional work / Agentic coding / Long-context analysis / Computer use
Claim evidenceRelease / model specs / weightsGPT-5.6 Luna Model | OpenAI APIgpt-5.6-luna · 2026-07-09
OpenRouter

Pricing / context / availability

OpenRouterOpenRouter listed
OpenRouter listingopenai/gpt-5.6-luna
Mapped versiongpt-5.6-luna
openai-gpt-5-6-luna-current
PricingOfficial · 2026-07-09: $1 / $6
OpenRouter · 2026-07-15: $1 / $6
input / output, per 1M tokens
Context1050000
Speed/LatencyNo reliable public source
Snapshot time2026-07-15T20:11:41.551Z
SourceView source
Evidence gaps

Public display boundary

Parameter scale not disclosedNo reliable benchmark sourceNo public model-card activity countersNo linkable real reviewSpeed/latency not disclosed