GPT-6 Sol
Last verified September 28, 2026 · OpenAI pricing ↗$2.00/1M input · $10.00/1M output · 1.1M context · OpenAI
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Pricing Details
OpenAILaunched September 22, 2026, alongside GPT-6 Luna and about 90 minutes after Claude Opus 5.5. Card: $2.00 input, $0.20 cached input, $2.50 cache write, $10.00 output. Exactly half of GPT-5.6 Sol's promotional $4.00/$20.00; OpenAI's community announcement calls it '50% lower API prices ... compared with GPT-5.6 promotional pricing' and nothing on the model or pricing page marks it as promotional. LONG CONTEXT: over 272,000 input tokens the whole request bills 2x input and cache, 1.5x output: $4.00 / $0.40 / $5.00 / $15.00. Batch and Flex 50%: $1.00 / $0.10 / $1.25 / $5.00 short, $2.00 / $0.20 / $2.50 / $7.50 long. Fast mode 2x: $4.00 / $0.40 / $5.00 / $20.00. Regional/data-residency endpoints +10%, FedRAMP +10%. Context 1,050,000 (922,000 max input + 128,000 max output). Reasoning effort none/low/medium (default)/high/xhigh/max. Knowledge cutoff April 20, 2026. Same input, cache-read and output rates as Claude Sonnet 5 ($2/$0.20/$10) and as Claude Opus 5.5's Batch card ($2/$10). Artificial Analysis Intelligence Index v4.3.2 (read 2026-09-28): max 48 at $1.06 per task and $1,550 to run the index (31k output tokens per task); xhigh 44 / $0.53; high 43 / $0.37; medium 40 / $0.25; low 34 / $0.13; non-reasoning 28 / $0.33, which costs more than low. Model ID: gpt-6-sol.
Input / 1M tokens
$2
Output / 1M tokens
$10
Context Window
1.1M
Max Output
128K
Price History
Launched at current price on 2026-09-22. No price changes recorded since.
Frequently Asked Questions
Common questions about GPT-6 Sol pricing and usage