OpenAI halves new model prices, entering DeepSeek's low-price territory
GPT-6 Luna's standard-request pricing now sits in DeepSeek V4.1 Flash's range, ending DeepSeek's exclusive low-price label, though cache-hit pricing remains an order of magnitude apart.
Original event 2026-09-23
OpenAI released GPT-6 Sol and Luna with API prices roughly half the previous generation's; Luna costs $0.10 per million input tokens and $0.50 per million output tokens.
Per ifanr's report, Luna's standard-request pricing now sits in the range of DeepSeek V4.1 Flash's cache-miss rates (1 yuan input, 4 yuan output per million tokens), though DeepSeek's off-peak cache-hit input at 0.02 yuan remains far below Luna.
Performance figures are OpenAI's own claims; third-party Artificial Analysis estimates both models' intelligence is roughly flat versus GPT-5.6, with the main change being cost.