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Model Pareto

GPT-5.5

OpenAIProprietaryopenai.com ↗
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Input
$5.00/M tok
Output
$30/M tok
Blended
$11.3/M tok · 3:1
Speed
91tok/s
Context
922Ktokens

Previous generation.

Rankings

Benchmark scores

~ italic, dashed = no published score yet, estimated from related benchmarks.

Coding

SWE-bench VerifiedEstimated
~#3 of 14 (estimated)~82.9%
  1. #1Claude Opus 596.0%
  2. #2Claude Sonnet 585.2%
  3. ~#3GPT-5.5Estimated82.9%
  4. #3Gemini 3.1 Pro80.6%
No published score — estimated from related benchmarks
LiveCodeBenchEstimated
~#3 of 20 (estimated)~90.6%
  1. #1Qwen3.8-Omni-Flash92.6%
  2. #2Qwen3.8 Flash-Next91.9%
  3. ~#3GPT-5.5Estimated90.6%
  4. #3Qwen3.8 27B90.3%
No published score — estimated from related benchmarks
AA Coding Agent IndexEstimated
~#10 of 15 (estimated)~48.9
  1. #1Claude Opus 5.566.0
  2. #2Claude Fable 5.162.2
  3. #9Kimi K351.9
  4. ~#10GPT-5.5Estimated48.9
  5. #10Grok 4.647.0
No published score — estimated from related benchmarks

Writing & chat

MMMLUEstimated
~#2 of 5 (estimated)~91.3%
  1. #1Gemini 3.1 Pro92.6%
  2. ~#2GPT-5.5Estimated91.3%
  3. #2Gemma 4 31B88.4%
No published score — estimated from related benchmarks
LMArena Text, Non-English (Elo)Verified
#8 of 531474 Elo
  1. #1Claude Opus 5.51501
  2. #2Claude Fable 5.1Few votes1496
  3. #7Kimi K31477
  4. #8GPT-5.51474
  5. #9Qwen3.8 Max (0902)1467
lmarena.ai · 2026-09-24
LMArena Text (Elo)Verified
#8 of 531482 Elo
  1. #1Claude Opus 5.51509
  2. #2Claude Fable 5.11501
  3. #7Gemini 3.1 Pro1487
  4. #8GPT-5.51482
  5. #9Qwen3.8 Max (0902)1481
lmarena.ai · 2026-09-24

Vision

MMMUEstimated
~#2 of 3 (estimated)~71.3%
  1. #1Claude Haiku 4.573.2%
  2. ~#2GPT-5.5Estimated71.3%
  3. #2Llama 4 Maverick69.4%
No published score — estimated from related benchmarks
CharXiv ReasoningEstimated
~#5 of 9 (estimated)~83.3%
  1. #1Gemini 3.8 Flash86.2%
  2. #2Kimi K384.8%
  3. #4Qwen3.8-Omni-Flash83.5%
  4. ~#5GPT-5.5Estimated83.3%
  5. #5Muse Glimmer78.8%
No published score — estimated from related benchmarks
OmniDocBench v1.5Estimated
~#4 of 8 (estimated)~89.8%
  1. #1MiniMax-M391.6%
  2. #2Kimi K391.1%
  3. #2Qwen3.8 27B91.1%
  4. ~#4GPT-5.5Estimated89.8%
  5. #4Gemini 3.1 Pro85.3%
No published score — estimated from related benchmarks

Hard reasoning

AIME (latest)Estimated
~#2 of 25 (estimated)~96.8%
  1. #1Inkling97.1%
  2. ~#2GPT-5.5Estimated96.8%
  3. #2Muse Glimmer94.7%
No published score — estimated from related benchmarks

Agents