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AIMODELRACE
OpenAILanguage model

GPT-5.5 Pro

OpenAI language model.

Research Math

#8

of 55
6.0 pts behind #1

0

races led

11

weeks at #1

87.7

score

Released
Apr 23, 2026
6 mo ago
Context
1.05M
128K max output
Price
$30 / $180
per 1M in/out · $67.50 blended · OpenRouter
Speed
—
not measured
Modalities
image · text
outputs text
Weights
Closed
API and apps

The 30-second version

OpenAI language model.

Key takeaways
  • 1OpenAI language model.

Where it ranks

Latest real results · click any race to watch it

CodingHard ReasoningMathScienceWriting & LanguageMultimodalTool Use & AgentsLong ContextTrust & FactualitySpeed & Cost

5.5 ProBest on each axis

Research Math over time

#1 frontier5.5 ProGrok 4.3M3
0.020.040.060.080.0100.02025Apr ’25Jul ’25Oct ’252026Apr ’26Jul ’26Oct ’26

Update history

The distilled version first; open any release for the deeper breakdown.