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OpenAI · Shipped

GPT-6 Luna release date

Specs, benchmarks and changelog are on the GPT-6 Luna model card at TPS.

Released

Sep 22, 2026

What we know

Fast, cost-efficient variant in the GPT-6 series, positioned below GPT-6 Sol. Suited for high-volume and latency-sensitive workloads.

Spec

Params
Not stated
Active
Not stated
Context
1050000
Weights
Closed
Modality
Not stated
Codename
Not stated

Every claim

20 from 8 sources
  • Simon WillisonSpotted in the wildNov 2

    The llm 0.37 release notes make gpt-6-luna the default model, half the price of gpt-5.6-luna, with no release date given.

    no date givenno datesource
  • The DecoderPressOct 21

    The Decoder reports GPT-6 Luna is available as a private preview for enterprise customers on Google Cloud at launch.

    points at Oct 21exact datesource
  • TestingCatalogPressOct 21

    Article reports GPT-6 Luna is available to select enterprises via Google Cloud private preview, with no release date given.

    no date givenno datesource
  • Simon WillisonSpotted in the wildOct 9

    A third-party token-count experiment lists GPT-6 Luna as an existing, queryable model, but gives no release date.

    no date givenno datesource
  • The DecoderPressOct 7

    GPT-6 Luna is the free-user version of GPT-6 with Intelligent UI capabilities.

    no date givenno datesource
  • TechmemeFrom the labOct 7

    OpenAI announced GPT-6 Luna powers ChatGPT for Free and Go tiers, rolling out starting tomorrow.

    points at Oct 8exact datesource
  • Simon WillisonSpotted in the wildOct 6

    OpenAI's gpt-6-luna decision model supports image and text input, with pricing at 10 cents per million input tokens.

    no date givenno datesource
  • The DecoderFrom the labSep 23

    ChatGPT Voice now runs on OpenAI's GPT-6 Luna model with email, calendar, and Slack integration.

    no date givenno datesource
  • OpenRouter catalogSpotted in the wildSep 22

    GPT-6 Luna Pro is available on OpenRouter with 1050000 token context window.

    no date givenno datesource
  • OpenRouter catalogSpotted in the wildSep 22

    GPT-6 Luna is available on OpenRouter with 1.05M token context window, positioned as the fast, cost-efficient model in the GPT-6 series.

    no date givenno datesource
  • OpenRouter catalogSpotted in the wildSep 22

    GPT-6 Luna is now available on OpenRouter as a routable model in OpenAI's GPT-6 series.

    no date givenno datesource
  • TechCrunch AIPressSep 22

    OpenAI launched GPT-6 Luna, a new model with lower cost and fewer mistakes.

    points at Sep 22exact datesource
  • TechmemePressSep 22

    OpenAI released GPT-6 Luna, priced at $0.10/1M input and $0.50/1M output tokens.

    no date givenno datesource
  • TechmemeFrom the labSep 22

    OpenAI launched GPT-6 Luna, which matches GPT-5.6 Sol's performance at approximately 1% of the cost.

    no date givenno datesource
  • Hacker News (AI front page)From the labSep 22

    OpenAI introduces GPT-6 Luna model.

    points at Sep 22exact datesource
  • TestingCatalogPressSep 22

    OpenAI launches GPT-6 Luna with lower API pricing and improved coding and agent benchmarks.

    no date givenno datesource
  • Simon WillisonFrom the labSep 22

    OpenAI released GPT-6 Luna on September 22, 2026, priced at half of GPT-5.6 Luna.

    points at Sep 22exact datesource
  • Simon WillisonSpotted in the wildSep 22

    GPT-6 Luna model is available via OpenAI API with model identifier gpt-6-luna.

    no date givenno datesource
  • OpenRouter catalogSpotted in the wildSep 22

    GPT-6 Luna Pro is available on OpenRouter with 1.05M token context window and pro reasoning mode.

    no date givenno datesource
  • OpenAI NewsFrom the labSep 22

    OpenAI's announcement introduces GPT-6 Luna as one of two models offering frontier intelligence at a different capability and cost balance.

    points at Sep 22exact datesource
Official announcement