OpenAI: GPT 5.6 Sol price reduction (until at least Nov 21)
Points and comments are a snapshot, not live.
OpenAI cuts GPT-5.6 Sol API prices by 20-33% until November 21.
OpenAI announced a temporary price reduction for the GPT-5.6 model family on its API pricing page. The discount applies to all three tiers: Sol, Terra, and Luna. Input tokens drop 20% to $4.00 per million for Sol and $2.00 for Terra, with Luna at $0.20. Output tokens see a 33% cut: Sol drops to $20.00, Terra to $12.00, and Luna to $1.20. Cached input and cache write prices are reduced proportionally. The promotion runs at least through November 21, 2026. Sol remains 20 times more expensive than Luna.
What commenters are saying
The thread is split between users welcoming the price war and those skeptical of OpenAI's motives. Some note the discount excludes subscribers, who already get weekly compute allowances that roll forward, effectively redistributing unused credit. A detailed comment breaks out the exact per-model pricing. Another camp debates open-weight vs. open-source models, arguing weights are compiled binaries, not source. A subset of commenters discuss the Sol/Terra/Luna naming scheme, finding it intuitive as L/M/S sizing. One user speculates the price cut signals a plateau in demand growth, requiring price reductions to sustain expansion.