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OpenAI releases GPT-6 Sol and Luna models with lower token costs

The company promises reduced error rates and lower API prices across its expanded AI model lineup.

The short version

  • OpenAI expanded its GPT-6 family by releasing Sol, designed for complex coding, and Luna, meant for high-volume clerical tasks.[TechCrunch · 9to5Mac]
  • The new models consume fewer tokens and are offered at half the API cost of previous GPT-5.6 versions due to caching and inference updates.[TechCrunch · 9to5Mac]
  • Access is rolling out to paid tiers in ChatGPT Work and Codex, with Luna also available to Free and Go users on desktop.[TechCrunch · 9to5Mac]
  • Enterprise administrators must manually enable the new models before workplace accounts can access them.[9to5Mac]

Key facts

  • OpenAI introduced the GPT-6 Sol model for complex coding and the GPT-6 Luna model for high-volume clerical tasks.[TechCrunch · 9to5Mac]
  • OpenAI states the new 6 series models operate at half the cost of previous 5.6 series Sol and Luna models due to caching and inference enhancements.[TechCrunch]
  • OpenAI claims that internal evaluations show GPT-6 Sol cuts mistake rates in half compared to its predecessor.[TechCrunch]
  • The models are being made available in ChatGPT Work, Codex, and via API, with Enterprise rollout contingent on administrator settings.[TechCrunch · 9to5Mac]

What remains uncertain

  • It remains unconfirmed whether OpenAI will officially drop a medium GPT-6 Terra model to streamline its lineup into three size tiers.[9to5Mac]

Sources

Outlet counts describe coverage, not independent confirmation. Reports may share a wire service or original source.