AI Index

GPT-5.1-chat

Language OpenAI Verified Retired Shut down Jul 23, 2026 Released Nov 13, 2025
Model ID
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Context
128K
16K max output
Input price
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Not listed
Output price
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Not listed
Epoch Capabilities Index
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Not listed
LMArena Text
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Not listed

Where to run it

2 offerings · prices as listed
MeterTierPrice
OpenAI API Official Retired Global · USD gpt-5.1-chat-latest
InputStandard past price, from the vendor’s page archived Jun 7, 2026$1.25 / 1M tokens
OutputStandard past price, from the vendor’s page archived Jun 7, 2026$10.00 / 1M tokens
Cache readStandard past price, from the vendor’s page archived Jun 7, 2026$0.13 / 1M tokens
Azure OpenAI in Foundry Retired Shut down Jun 29, 2026 Global · USD gpt-5.1-chat
InputStandard $1.25 / 1M tokens
OutputStandard $10.00 / 1M tokens
Cache readStandard $0.13 / 1M tokens

Changes

All changes →
  1. Available → Retired on OpenAI API
  2. Available → Retired
  3. Available → Retired on Azure OpenAI in Foundry

Cited scores

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