ModelBench
Model catalog

Models

Every model in the catalog with source-linked pricing, context limits, provider availability, and published benchmark results.

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3 models
OpenAI kenari
Ranked by Design Arena: website
OpenAI: GPT-5.5 T
Reasoning Tools JSON 1255.0

Default frontier GPT for coding, computer use, research, and knowledge work

openai/gpt-5.5 2026-04-23 1.05M context $5/M input $30/M output
50 providers
OpenAI: GPT OSS 120B T
Reasoning Tools Open weights 966.0

Open GPT reasoning model for self-hosted agents and controllable deployments

openai/gpt-oss-120b 2025-08-05 131.072K context $0.03/M input $0.15/M output
62 providers
OpenAI: GPT OSS 20B T
Reasoning Tools Open weights 852.0

Open GPT reasoning model for self-hosted agents and controllable deployments

openai/gpt-oss-20b 2025-08-05 131.072K context $0.018/M input $0.09/M output
39 providers