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GPT-5.5

CALIBRATING

OpenAI · openai/gpt-5.5 · verdict as of 2026-07-03

Daily test history (90 days, baseline band = trailing mean ± 2σ)

Math & Reasoning

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Code Generation

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Instruction Following

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Report Analysis

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Structured Extraction

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Summarization

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Game Design

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Customer Service

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Web Design

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Creative Writing

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Serving providers (last 30 days)

striped = multiple providers served this model that day (hover for detail)

Public benchmarks overall 85.6

MMLU-Pro

88

GPQA Diamond

85

SWE-bench Verified

75

LMArena Elo

1455

AIME 2025

94

retrieved 2026-07-02 from public sources — see methodology

Recent samples (latest run, one per test case)