OpenAI's GPT-6 Sol and Luna cut prices in half but barely move the needle on performance

The DecoderSeptember 22, 2026en

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. The article OpenAI's GPT-6 Sol and Luna cut prices in half but barely move the needle on performance appeared first on The Decoder .

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• OpenAI
• Anthropic
• Verktyg