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GPT-5

OpenAI · Released 7 Aug 2025 · gpt-5

Compare this model
ProprietaryRetires 11 Dec 2026Coding

$1.25

Input price / 1M tokens

#27 of 61, cheapest first

$10.00

Output price / 1M tokens

#39 of 61, cheapest first

400K

Context window

#52 of 71

75

Output tokens / second

#44 of 61

74.9%

SWE-bench Verified

#6 of 12

96.7%

τ²-bench

#1 of 6

Summary

GPT-5 is a proprietary model from OpenAI, released on 7 Aug 2025.

At $1.25 input and $10.00 output per million tokens, it is #27 of 61 on input price, cheapest first.

Its 400K-token context window ranks #52 of 71.

Measured output speed is 75 tokens per second, #44 of 61.

The previous-generation reasoning model for coding and agentic tasks, launched August 2025. OpenAI now points users to newer models.

Benchmarks · 3 reported

BenchmarkScoreBarRankSource
SWE-bench Verifiedn=477 (23 of 500 tasks omitted); short verification-focused prompt74.9%#6 of 12OpenAI launch post for developersSelf-reported
Aider polyglotdiff format88%–OpenAI launch post for developersSelf-reported
τ²-benchhigh reasoning effort96.7%#1 of 6OpenAI launch post for developersSelf-reported

Self-reported means the lab ran the test itself. A rank appears only where several labs report the same version of a benchmark.

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SWE-bench Verified

#6 of 12

Real GitHub issues, fixed and tested

τ²-bench

#1 of 6

Tool use with a simulated customer

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