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

Only stored in your browser.

Context
400K
Input
$0
/1M tok
Output
$0
/1M tok
Blended
$0
#1/ 461/1M · 3:1
Speed
0
#115/ 461tok/s
Cache read
$0.13
/1M tok

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

Reasoning effortIndexPriceSpeed
high35.3$3.440 t/s
medium34.6$3.440 t/s
low31.9$3.440 t/s
minimal17.3$3.440 t/s
ChatGPT15.4$0.000 t/s

Intelligence Index per reasoning-effort setting, via Artificial Analysis

Reported on 62 evals across 15 domains - best 100.0% on Gutenberg Env · #1 of 5

Reported eval scores

62

Introduced in

paperIntroducing GPT-5