# GPT-4.1

For the complete documentation index, see llms.txt. Markdown versions of documentation pages are available by appending .md to the page URL.

Smartest non-reasoning model

Model ID: gpt-4.1

GPT-4.1 excels at instruction following and tool calling, with broad knowledge across domains. It features a 1M token context window, and low latency without a reasoning step.

Note that we recommend starting with GPT-5 for complex tasks.

# Model details

• Default snapshot: gpt-4.1-2025-04-14
• Input modalities: text, image
• Output modalities: text
• 1,047,576 context window
• 32,768 max output tokens
• Jun 01, 2024 knowledge cutoff

# Pricing

Pricing is based on the number of tokens used, or other metrics based on the model type. For tool-specific models, like search and computer use, there’s a fee per tool call. See details in the pricing page.

# Text tokens

# Endpoints

# Supported features

• streaming
• structured_outputs
• predicted_outputs
• function_calling
• file_search
• file_uploads
• image_input
• web_search
• fine_tuning
• prompt_caching

# Supported tools

Tools supported by this model when using the Responses API.

• function_calling
• web_search
• file_search
• image_generation
• code_interpreter
• mcp

# Quick comparison

# Snapshots

Snapshots let you lock in a specific version of the model so that performance and behavior remain consistent. Below is a list of all available snapshots and aliases for GPT-4.1.

• gpt-4.1-2025-04-14

# Rate limits

Rate limits ensure fair and reliable access to the API by placing specific caps on requests, tokens, audio duration, or other usage within a given time period. Your usage tier determines how high these limits are set and automatically increases as you send more requests and spend more on the API.

# default

# Long Context

128k input tokens