AI Index

GPT-5 chat

Language OpenAI Verified Retired Shut down Jul 23, 2026 Released Aug 7, 2025
Model ID
Context
128K
16K max output
Input price
—
Not listed
Output price
—
Not listed
Epoch Capabilities Index
—
Not listed
LMArena Text
1,427
#77 of 149 listed

Where to run it

2 offerings · prices as listed
MeterTierPrice
OpenAI API (opens in a new tab) Official Retired Global · USD gpt-5-chat-latest
InputStandard past price, from the vendor’s page archived Sep 21, 2026$1.25 / 1M tokens
OutputStandard past price, from the vendor’s page archived Sep 21, 2026$10.00 / 1M tokens
Azure OpenAI in Foundry (opens in a new tab) Retired Shut down Jun 29, 2026 Global · USD gpt-5-chat
InputStandard $1.25 / 1M tokens
OutputStandard $10.00 / 1M tokens
Cache readStandard $0.13 / 1M tokens
  1. 1 price dropped on OpenAI API Cache read $0.13
  2. Available → Retired on OpenAI API
  3. Available → Retired
  4. Available → Retired on Azure OpenAI in Foundry

Cited scores

From third-party leaderboards, not measured by us
  • LMArena Text 1,427

    #77 of 149 listed models · CI 1,422–1,431 · 31,009 votes

  • LMArena Text · Chinese 1,450

    #85 of 149 listed models · CI 1,437–1,462 · 2,304 votes

  • LMArena Text · Coding 1,462

    #85 of 149 listed models · CI 1,454–1,470 · 5,953 votes

  • LMArena Vision 1,232

    #52 of 87 listed models · CI 1,225–1,239 · 39,910 votes

  • LMArena (Arena), leaderboard-dataset on Hugging Face, licensed CC BY 4.0 · License · as of Oct 2, 2026
  • changes we made