| GPT‑5.1 | Claude Opus 4 | |
|---|---|---|
Web Site
| ||
Provider
| ||
Chat
| ||
Release Date
| ||
Modalities
| text images | text images |
API Providers
| OpenAI API (Responses & Chat Completions),ChatGPT (Instant & Thinking),Codex (CLI & IDE) | Anthropic API, Amazon Bedrock, Google Cloud's Vertex AI |
Knowledge Cut-off Date
| 06.2025 | Unknown |
Open Source
| No | No |
Pricing Input
| $1.25 per million tokens | $15 |
Pricing Output
| $10.00 per million tokens | $75 per million tokens |
MMLU
| - | 88.8% Source |
MMLU-Pro
| 78.4% Source | - |
MMMU
| 85.4% Source | 76.5% Source |
HellaSwag
| - | - |
HumanEval
| - | - |
MATH
| - | - |
GPQA
| 88.1% Diamond Source | 79.6% Diamond Source |
IFEval
| - | - |
SimpleQA
| - | - |
AIME 2024 | - | - |
AIME 2025 | 94% Source | 75.5% Source |
Aider Polyglot
| - | - |
LiveCodeBench v5
| - | - |
Global MMLU (Lite)
| - | - |
MathVista
| - | - |
Mobile Application |
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