GPT-5 (ChatGPT)

Aug 2025
Retired 2026-07-23Replace withGPT-5.6 SolNewer versionGPT-6 LunaBetterMiMo v2.6 ProOpen weights
GPT-5 (ChatGPT)
Compare in
on
—per task?
API price not publicprice
—output speed?
128Kcontext

Ranking?

Retired models are left out of the current rankings.

Alternatives?

ModelScoreCostPer taskWhat changes
BetterGPT-6 Lunalow×2.1—$0.005Function calling only with none · Chat Completions+3OpenMiMo v2.6 Prothinking×4.4—$0.13Pass back reasoning_content+3BetterGPT-5.6 Lunalow×2—$0.01BetterMiMo v2.5thinkingOpen×2.1—$0.019BetterClaude Haiku 5.5low×2.8—$0.024Remove sampling parameters+5

History

17 versions
10203040Jan 24Jul 24Jan 25Jul 25Jan 26Release dateAA Intelligence Index 4.3.244o4o (2024-05-134o (2024-08-064.1 · Apr5 · Aug5 · Aug5.1 · Nov5.2 · Dec5.4 · Mar5.5
10203040202420252026Release dateAA Intelligence Index 4.3.244o4o (2024-05-134.1 · Apr5 · Aug5 · Aug5.1 · Nov5.2 · Dec5.4 · Mar5.5

Benchmarks

all categories
Chat & Knowledge
Humanity's Last Exam6.6
AA Intelligence Index 4.3.2≈10.4
AA-LCR (long context) 1.165
GPQA Diamond68.6
AIME 2025 · AA archived48.3
Coding
Terminal-Bench Hard (version unstated)12.9
LiveCodeBench · AA archived54.3
Agents & Tool Use
τ²-bench · AA0
Writing & Language
IFBench (instructions)45

FAQ

How much does GPT-5 (ChatGPT) cost?›

There is no per-unit API price: API price not public.

Is GPT-5 (ChatGPT) free to use?›

There is no free API.

What is the context window of GPT-5 (ChatGPT)?›

128K tokens.

When was GPT-5 (ChatGPT) released? Is there a newer version?›

Released 2025-08-07. It has been superseded by GPT-5.6 Sol.

Is GPT-5 (ChatGPT) open source?›

No, GPT-5 (ChatGPT) is a closed model available through an API. The closest open-weights option here is MiMo v2.6 Pro.

Can GPT-5 (ChatGPT) read images?›

It accepts text and images, PDF files as input.

What is GPT-5 (ChatGPT)?›

GPT-5 (ChatGPT) is a closed language model from OpenAI, released Aug 2025.

What are the best alternatives to GPT-5 (ChatGPT)?›

GPT-6 Luna (better), MiMo v2.6 Pro (open weights).