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GPT-5.1 on OpenAI

All pricing options, context tiers & price history

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Model Details

Context Length
400K
Max Output
128K
Released
Nov 2025
Status
Active
Modalities
Text

Current Pricing

Text (4 tiers)

Usage Type Input Price
per 1M tokens
Output Price
per 1M tokens
Cached Input
per 1M tokens
Effective From
Batch $0.6250 $5.0000 $0.0625 Nov 13, 2025
Flex $0.6250 $5.0000 $0.0625 —
Priority $2.5000 $20.0000 $0.2500 —
Standard $1.2500 $10.0000 $0.1250 Nov 13, 2025

Pricing Change History

No pricing changes have been recorded yet for this model.