Context Window
OpenaifastVisionTool use

Gpt 5 Mini 2025 08 07

272K context·~204K words·128K max output
View context detailsCompare with Amazon Titan Text Express
Context window272Ktokens
Max output128Ktokens

Context window

This model accepts 272K tokens in one request (~204K words of text).

Context window size272K tokens
4K32K128K1M10M

What fits in one request

  • Short document
    About 1,500 words of text
    Fits
  • Long document
    About 37K words of text
    Fits
  • Small codebase
    About 150K words of text
    Fits
  • Full novel
    About 375K words of text
    Won't fit

Specifications

Context size, pricing, and release info in one place.

Context window
272,000 tokens (272K)
Max output tokens
128,000 tokens (128K)
Speed tier
fast
Provider
Openai
Input cost
$0.275/M / 1M tokens
Output cost
$2.20/M / 1M tokens
Cached input
$0.028/M / 1M tokens

Capabilities

See which features this model supports, such as vision, tools, and streaming.

Supported (6)
Vision
Supported
Tool use
Supported
Function calling
Supported
Extended thinking
Supported
Streaming
Supported
Prompt caching
Supported
Not supported (2)
Web search
Not supported
Batch API
Not supported

Best for

Jump to a guide or ranking that matches each workload.

ReasoningAI agentsMultimodalLong documentsRAGChatbots

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Frequently asked questions

Short answers about context size and how this model behaves.

Gpt 5 Mini 2025 08 07 has a context window of 272K tokens (272,000 tokens). This large window is well-suited for long document analysis, extensive codebases, and multi-session agent workflows.

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