OpenAI Released April 14, 2025 Synced Apr 19, 2026

OpenAI: GPT-4.1 Nano

For tasks that demand low latency, GPT‑4.1 nano is the fastest and cheapest model in the GPT-4.1 series. It delivers exceptional performance at a small size with its 1 million...

Tool useVision

Why it stands out

Offers a 1048K-token context window, enabling full-document and multi-file analysis without chunking.

Tool use support makes it viable for function-calling and agentic pipelines.

Multimodal input (vision) extends it beyond text-only workflows.

$0.1/M input makes it practical for always-on agents, batch processing, or high-volume classification.

What to watch

No benchmark score currently tracked — evaluate using task-specific testing alongside pricing and capability data.

Release timeline

Tracked events for OpenAI: GPT-4.1 Nano.

Back to model tracker

release

OpenAI: GPT-4.1 Nano entered the tracked catalog

April 14, 2025

For tasks that demand low latency, GPT‑4.1 nano is the fastest and cheapest model in the GPT-4.1 series. It delivers exceptional performance at a small size with its 1 million token context window, and scores 80.1% on MMLU, 50.3% on GPQA, and 9.8% on Aider polyglot coding – even higher than GPT‑4o mini. It’s ideal for tasks like classification or autocompletion.

View source