0

GPT-5

Closed

OpenAI's August 2025 unified frontier model that auto-routes between a fast model and a deeper "thinking" variant.

Publisher
OpenAI
Family
GPT 5
Params
Undisclosed (closed)
Context
400K
Input
Output
Providers
openai
Released
7 Aug 2025

Cite

Notes

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Attribution

Benchmark scores
AiderAAprime-hubVaultdabstep-orgfrontiermathSWE-benchVals AI
Attribution policy →
Context
400K
Input
$1.25
/1M tok
Output
$10
/1M tok
Blended
$3.44
#389/ 458/1M · 3:1
Speed
159
#51/ 458tok/s
Cache read
$0.13
0.10x input

Price & speed via Artificial Analysis · ranked across tracked models · caching via OpenRouter

Reported on 60 evals across 14 domains - best 100.0% on Gutenberg Env · #1 of 5

Reported eval scores

60

Introduced in

paperIntroducing GPT-5