OpenAI: GPT-4.1

Image input File input Text input Text output
Author's Description

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...

Key Specifications
Cost
$$$$
Context
1M
Parameters
1.8T (Rumoured)
Released
Apr 14, 2025
Speed
Ability
Reliability
Supported Parameters

This model supports the following parameters:

Tool Choice Tools Response Format Temperature Max Tokens Structured Outputs Top P Seed
Features

This model supports the following features:

Structured Outputs Tools Response Format
Performance Summary

OpenAI's GPT-4.1, released on April 14, 2025, demonstrates strong overall performance, particularly excelling in reliability with a 100% success rate across all benchmarks. It performs among the fastest models, ranking in the 77th percentile for speed, and offers moderate pricing, positioned in the 30th percentile. The model exhibits exceptional accuracy in Ethics (100%) and General Knowledge (99.5%), with its Ethics performance being perfect and noted as the most accurate at its price point and among models of similar speed. Mathematics is another significant strength, achieving 96.0% accuracy, placing it in the 94th percentile and also recognized as the most accurate among models of comparable speed. Instruction Following (76.0%) and Coding (91.0%) also show strong results, aligning with its description as optimized for advanced instruction following and software engineering. While its Hallucinations accuracy (88.0%) is moderate, it indicates a reasonable ability to acknowledge uncertainty. Reasoning (82.0%) and Email Classification (98.0%) further round out its capable performance across diverse tasks. GPT-4.1's long context window and high recall capabilities make it well-suited for complex applications like agents and enterprise knowledge retrieval.

Model Pricing

Current Pricing

Feature Price (per 1M tokens)
Prompt $2
Completion $8
Input Cache Read $0.5
Web Search $10000

Price History

Available Endpoints
Provider Endpoint Name Context Length Pricing (Input) Pricing (Output)
OpenAI
OpenAI | openai/gpt-4.1-2025-04-14 1M $2 / 1M tokens $8 / 1M tokens
Azure
Azure | openai/gpt-4.1-2025-04-14 1M $2 / 1M tokens $8 / 1M tokens
Benchmark Results
Benchmark Category Reasoning Strategy Free Executions Accuracy Cost Duration
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