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OpenAI: GPT-5 Chat

OpenAI

OpenAI: GPT-5 Chat by OpenAI costs $1.25 per 1M input tokens and $10.00 per 1M output tokens, with a 128K-token context window.

Pricing

Input (per 1M tokens)
$1.25
Output (per 1M tokens)
$10.00
Cached input (per 1M)
$0.13

Specifications

Provider
OpenAI
Context window
128K tokens
Parameters
—
Released
—
Open weights
—
Frontier model
No

Benchmarks

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FAQ

How much does OpenAI: GPT-5 Chat cost?

OpenAI: GPT-5 Chat is priced at $1.25 per 1M input tokens and $10.00 per 1M output tokens. Output tokens cost more than input.

What is OpenAI: GPT-5 Chat's context window?

OpenAI: GPT-5 Chat supports a context window of 128K tokens — the maximum prompt plus response length it can handle in a single request.

Is OpenAI: GPT-5 Chat open weight?

Open-weight status for OpenAI: GPT-5 Chat is not recorded in our dataset.

Data as of 2026-06-28. Source: Pricing via OpenRouter API, openrouter.ai. Pricing is per 1M tokens (USD); confirm with the provider before production use.