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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5 models
OpenAI 1M+
Ranked by Humanity's Last Exam
OpenAI: GPT-5.4 Pro T
Reasoning Tools 58.7

More exact GPT-5.4 tier for demanding professional reasoning and agent tasks

openai/gpt-5.4-pro 2026-03-05 1.05M context $30/M input $180/M output
19 providers
OpenAI: GPT-5.5 Pro T
Reasoning Tools JSON 57.2

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-6 Astra T
Reasoning Tools JSON 57.2

GPT-6 Astra is OpenAI's most capable model for complex reasoning, coding, computer use, research, and document creation.

openai/gpt-6-astra 2026-09-04 1.05M context $10/M input $50/M output
18 providers
OpenAI: GPT-5.5 T
Reasoning Tools JSON 52.2

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-5.4 T
Reasoning Tools JSON 52.1

Agent-ready GPT for coding and computer-use workflows at a lower cost

openai/gpt-5.4 2026-03-05 1.05M context $2.5/M input $15/M output
42 providers