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GPT-5

OpenAI

OpenAI's original GPT-5 flagship excelling at complex reasoning, broad knowledge, advanced coding, and multi-step agentic tasks.

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Capabilities

Thinking

Tool Use

Image Input

Image Generation

PDF Input

Example Use Cases

Complex reasoning tasks

Advanced coding

Multi-step agentic tasks

Technical Specifications

Context Window

400,000 tokens

Max Output

128,000 tokens

Pricing

Token Costs (per 1M tokens)

Cache Miss Input

$1.25

Non-Reasoning Output

$10

Cache Read Input

$0.13

Tool Costs (per 1K calls)

Web Search

$10

Code Execution

$30

Image Generation

$400

Legacy

Made legacy on

Reason

Outdated model

Recommended Replacement

GPT-5.4