GPT-5.6 Sol Pro API price

Last 90 days

Price changes

1. October 15, 2026input $2.00 → $4.00, output $10.00 → $20.00
2. October 6, 2026input $4.00 → $2.00, output $20.00 → $10.00
3. September 29, 2026input $2.00 → $4.00, output $10.00 → $20.00

What the numbers say

• Last price change on October 15, 2026: input $2.00 → $4.00, output $10.00 → $20.00 per million tokens.
• Input costs less than 8% of the 443 paid models we track.
• Context window ranks #4 of 459 models.

Closest in price

• Claude Fable 5.2 (batch)Anthropic$4.00 / $20.00
• Claude Opus 5.5Anthropic$4.00 / $20.00
• Muse WonderMeta$4.00 / $20.00
• GPT-5.6 SolOpenAI$4.00 / $20.00
• Qwen3.8 Max PrimeQwen$4.00 / $12.00
• Claude Opus LatestAnthropic$4.00 / $20.00