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Introducing GPT-4.1 (and 4.1 Mini, 4.1 Nano)OpenAIReleased June 12, 2025

GPT-4.1 (and 4.1 Mini, 4.1 Nano)

OpenAI’s smartest non-reasoning foundation model, delivering instantaneous responses with 256k context and low latency.

text-to-textProprietary API$1.25 / 1M tok (Smartest Non-Reasoning)Context: 256K (256,000 tokens)Arena ELO: 1360
Official Model Card & DocsTry in AI Studio / PlaygroundGitHub Repository

Technical Specifications

Architecture Type
Non-Reasoning Efficiency Transformer
Total Parameters
Multiscale Tiers
Context Window
256K (256,000 tokens)
Max Output Tokens
32.768K (32,768 tokens)
Knowledge Cutoff
November 2024
Supported Modalities
text, code, vision
License & Access
OpenAI Business Terms

Benchmark Evaluations

Math500
84
Mmlu Pro
78.4
Humaneval
92.1
Chatbot Arena ELO
1360

Deep Architectural Overview

GPT-4.1 optimizes standard instruction-following without thinking delays. Available in standard, Mini, and Nano configurations, it caters to applications demanding instant replies and high conversational throughput.

Strengths & Considerations

Core Strengths
  • Instant zero-thinking response latency
  • Expanded 256k context window
  • High accuracy on structured extraction and tool calls
Known Limitations
  • Complex multi-turn algorithmic proofs are better handled by reasoning models

Token & API Pricing

Input Tokens (1M)$1.25
Output Tokens (1M)$5.00
Cached Input (1M)$0.3125
Pricing is verified directly against OpenAI's developer documentation and API rate sheets.

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