GPT 6 Sol/Luna cut prices 50%, beat Opus 5 at 9% of its cost as price war escalates
oran_ge · x · 2026-09-23
A recap of the latest model war: GPT 6 Sol and Luna adopt Astra-like training, drop prices 50%, and beat Opus 5 on AutomationBench at just 9% of its cost—though Sol trails GPT 5.6 Sol on OSWorld 2.0. Terra is discontinued, and OpenAI improved cache hit rates. Meanwhile Anthropic shipped Opus 5.5 with a token 20% price cut, 60% cache discount, and 40% lower agent-task costs. The author credits competition from DeepSeek and GLM for the price-war era.
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