# GPT-4.1 Mini: AI model fact sheet

- **Provider:** openai
- **Released:** 2025-04-14
- **Context window:** 1,047,576 tokens
- **Parameters:** Not disclosed
- **API pricing:** $0.40 / 1M input, $1.60 / 1M output
- **OpenRouter ID:** openai/gpt-4.1-mini
- **Capabilities:** conversation, analysis, code-generation

GPT-4.1 Mini is a mid-sized model delivering performance competitive with GPT-4o at substantially lower latency and cost. It retains a 1 million token context window and scores 45.1% on hard instruction evals, 35.8% on MultiChallenge, and 84.1% on IFEval. Mini also shows strong coding ability (e.g., 31.6% on Aider's polyglot diff benchmark) and vision understanding, making it suitable for interactive applications with tight performance constraints.

## Benchmarks

| Benchmark | Score |
| --- | --- |
| Hard Instruction Evals | 45.1% |
| MultiChallenge | 35.8% |
| IFEval | 84.1% |
| Aider Polyglot Diff | 31.6% |
| Input Tokens Cost | $0.4/M |
| Output Tokens Cost | $1.6/M |

Source: real side-by-side outputs, pricing and specs at https://rival.tips/models/gpt-4.1-mini