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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4 models
File OpenAI fastrouter
OpenAI: GPT-5.5 T
Reasoning Tools JSON

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
46 providers
OpenAI: GPT-5.5 Pro T
Reasoning Tools JSON

Highest-accuracy GPT-5.5 tier for slower, precision-heavy reasoning and coding

openai/gpt-5.5-pro 2026-04-23 1.05M context $30/M input $180/M output
18 providers
OpenAI: GPT-5.3 Codex T
Reasoning Tools JSON

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

openai/gpt-5.3-codex 2026-02-05 400K context $1.75/M input $14/M output
28 providers
OpenAI: GPT-4.1 T
Tools JSON

Long-lived GPT workhorse for coding, instruction following, and production apps

openai/gpt-4.1 2025-04-14 1.04758M context $2/M input $8/M output
28 providers