GPT-4.1 is a flagship large language model optimized for advanced instruction following, real-world software engineering, and long-context reasoning. It supports a 1 million token context window and outperforms GPT-4o and...
OpenAI: GPT-4.1 — OpenAI. Context window 1,047,576 tokens. API pricing (per 1M tokens): Input $2, Output $8. License: Proprietary. LMArena 1,383. GPQA Diamond 66.9%.
| Provider | OpenAI |
|---|---|
| API model ID | openai/gpt-4.1 |
| Tier | Frontier |
| Context window | 1,047,576 tokens |
| Max output | 32,768 tokens |
| License | Proprietary |
| API pricing (per 1M tokens) · Input | $2 |
| API pricing (per 1M tokens) · Output | $8 |
| LMArena | 1,383 (gpt-4.1-2025-04-14) |
| GPQA Diamond | 66.9% |
LMArena (CC-BY 4.0, best reasoning setting, 2026-10-02) · GPQA Diamond: Epoch AI (CC-BY 4.0)
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