OpenAI GPT-4.1 mini: fast non-reasoning GPT model with 1M token context, instruction following, fine-tuning, and predicted outputs support. No reasoning step.
Capabilities, design details, and architectural traits
GPT 4.1 mini is the smaller, faster variant of GPT 4.1. OpenAI documented that it matches or exceeds GPT-4o in intelligence evaluations while reducing latency by nearly half. It shares GPT 4.1's defining traits - 1M token context window, instruction following, tool calling, and low latency without a reasoning step - at a faster speed rating.
| Trait | Detail |
|---|---|
| Context window | 1,047,576 tokens (1M), identical to GPT 4.1, at fast-tier speed |
| No reasoning step | Produces output without a chain-of-thought pass; Speed rated Fast vs GPT 4.1's Medium |
| Fine-tuning | Supported - including supervised fine-tuning and direct preference optimization |
| Predicted outputs | Supported - allows supplying an expected output to accelerate responses |
OpenAI's announcement described GPT 4.1 mini as a significant leap in small model performance." It replaces GPT-4o mini as the fast non-reasoning option in the 4.1 family, carrying the same 1M token long-context comprehension improvements that distinguish the 4.1 generation from GPT-4o.
Independent evaluations · Artificial Analysis
Evaluate specifications, pricing, and independent benchmark indices
| Model Details | |||
|---|---|---|---|
| General Info | |||
| Provider | OpenAI | Anthropic | Anthropic |
| Release Date | April 14, 2025 | July 24, 2026 | June 9, 2026 |
| Knowledge Cutoff | Jun 2024 | May 2026 | - |
| Context & Limits | |||
| Context Window | 1.0M Best Context Window | 1M | 1M |
| Pricing (per 1M tokens) | |||
| Input Pricing | $0.40 Best Input Pricing | $5 | $10 |
| Output Pricing | $1.60 Best Output Pricing | $25 | $50 |
| Modalities | |||
| Inputs | imagetextfile | textimage | textimagefile |
| Outputs | text | text | text |
| Benchmarks (0-100) | |||
| Intelligence Index | 14.8 | 63.1 Best Intelligence Index | 62.1 |
| Coding Index | 20.2 | 78.0 Best Coding Index | 76.5 |
| Agentic Index | 1.8 | 59.2 Best Agentic Index | 56.6 |
Graduate-level reasoning and expert Q&A evaluation.
Extremely difficult logical reasoning and knowledge.
Logical reasoning over long context windows.
Independent evaluation data provided by Artificial Analysis. To view the latest benchmarks and full details, visit their official site.
