GPT 5.5

Every figure OnlySOTA holds for this model, one source at a time. Nothing on this page is averaged across sources.

KILLED Retired

Identity

Developer

OpenAI

Family

GPT → GPT 5.5

Weights

closed

Released

2026-04-23

Blended Price, USD per 1M tokens (3:1 input:output)

$11.25

Sources

6 sources · 18 entries · 15 configs

Published upstream as

GPT-5.5gpt-5-5GPT 5.5

Where it places

• Artificial Analysis LLM Leaderboard Artificial Analysis Intelligence Index 56.3
• Arena — Agent Overall #7 0.079
• Artificial Analysis Coding Agents Artificial Analysis Coding Agent Index 0.610
• Arena — Code Overall #33 1508
• Arena — Text Overall (style control) #16 1482
• Arena — Vision Overall (style control) #11 1286

Effort ladder

• Artificial Analysis LLM Leaderboard xhigh wins

  1. low 44.5
  2. medium 51.4
  3. high 54.7
  4. xhigh 56.3

• Arena — Agent agent xhigh wins

  1. high 0.066
  2. xhigh 0.079

• Artificial Analysis Coding Agents Codex xhigh wins

  1. medium 0.553
  2. xhigh 0.610

• Artificial Analysis Coding Agents Cursor CLI only medium ran

  1. medium 0.471

• Arena — Code codex-harness xhigh wins

  1. high 1486
  2. xhigh 1508

• Arena — Text only high ran

  1. high 1482

• Arena — Vision only high ran

  1. high 1284