OpenAI's GPT-6 Sol and Luna cut prices in half but barely move the needle on performance
OpenAI launched cheaper GPT-6 Sol and Luna models that mostly match prior scores at half price.
OpenAI released GPT-6 Sol and Luna at half the GPT-5.6 token price: Sol is $2 per million input tokens and $10 output, Luna is $0.10 and $0.50, and Terra is no longer available. OpenAI reports Sol at 49.3% on FrontierCode 1.1 for $2.14 per task, near Claude Fable 5.1, and 68.8% on DeepSWE v1.1, short of Claude Opus 5 at 73.7% and GPT-5.6 Sol at 72.7%. Artificial Analysis says intelligence barely changed, with Sol moving from 47 to 48 and Luna staying at 37, plus GDPval-AA drops of about 100 and 75 Elo. API ids are gpt-6-sol and gpt-6-luna, with ChatGPT Work and Codex access rolling out.
- Sol pricing fell from $4/$20 to $2/$10 per million input and output tokens.
- Luna fell from $0.20/$1.20 to $0.10/$0.50, and Terra was retired.
- FrontierCode 1.1: Sol scores 49.3% at $2.14 versus Fable 5.1 at 50.3%.
- DeepSWE max-effort Sol scores 68.8%, below Opus 5 at 73.7% and GPT-5.6 Sol at 72.7%.
- Artificial Analysis: Sol intelligence rises 47 to 48; Luna stays at 37.
- Organizations
- OpenAIAnthropicArtificial Analysis
From the original article
5 min read at the-decoder.com
With GPT-6 Sol and Luna, OpenAI adds two cheaper models that deliver their predecessors' performance at half the token price and take aim at Anthropic's pricier offerings. Independent analyses find little gain in actual intelligence, though, and OpenAI likely didn't see Anthropic's simultaneous launch of Opus 5. 5 coming.
By Matthias Bastian · the-decoder.com
A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.