3 models
Ranked by Terminal-Bench Hard
Reasoning Tools JSON 37.9

Coding-optimized GPT model for repository edits, reviews, and agentic software work

openai/gpt-5-codex 2025-09-15 400K context $1.1/M input $9/M output
13 providers
Tools 8.3

The 2024-08-06 version of GPT-4o offers improved performance in structured outputs, with the ability to supply a JSON schema in the respone_format. Read more [here](https://openai.com/index/introducing-structured-outputs-in-the-api/). GPT-4o ("o" for "omni") is...

openai/gpt-4o-2024-08-06 2024-08-06 128K context $2.5/M input $10/M output
7 providers
Tools 8.3

The 2024-11-20 version of GPT-4o offers a leveled-up creative writing ability with more natural, engaging, and tailored writing to improve relevance & readability. It’s also better at working with uploaded...

openai/gpt-4o-2024-11-20 2024-11-20 128K context $2.5/M input $10/M output
8 providers