How much does OpenAI: GPT-5 Mini cost per 1M tokens?

OpenAI: GPT-5 Mini costs $0.250 per 1M input tokens and $2.00 per 1M output tokens on the standard tier. Cached input is $0.025 per 1M.

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

OpenAI: GPT-5 Mini accepts up to 400,000 tokens in a single request, and can return up to 128,000 output tokens.

Is there a cheaper OpenRouter model than OpenAI: GPT-5 Mini?

Yes. Free Models Router is free per 1M input tokens versus $0.250 for OpenAI: GPT-5 Mini, with a 200,000 token context window.

Where does this OpenAI: GPT-5 Mini price come from?

From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

OpenAI: GPT-5 Mini pricing

GPT-5 Mini is a compact version of GPT-5, designed to handle lighter-weight reasoning tasks. It provides the same instruction-following and safety-tuning benefits as GPT-5, but with reduced latency and… OpenAI: GPT-5 Mini from OpenRouter costs $0.250 per 1M input tokens and $2.00 per 1M output tokens. Cached input is $0.025 per 1M. Context window 400,000 tokens.

API id openai/gpt-5-mini · OpenRouter · source · updated 2026-11-10 · general-purpose

$0.250

Input / 1M tokens

$2.00

Output / 1M tokens

$0.025

Cached input / 1M

400K

Context window

OpenAI: GPT-5 Mini specifications

Provider: OpenRouter
API id: openai/gpt-5-mini
Model type: general-purpose
Context window: 400K tokens
Max output: 128K tokens
Currency: USD
Price source: Provider API
Last checked: 2026-11-10

gpt-5-mini across providers

The same model, priced by every seller we track. Ranked by the cost of 1M input + 1M output tokens, standard tier; savings measured against buying from the vendor directly.

Provider	Input /1M	Cached /1M	Output /1M	1M in + 1M out	vs vendor
OpenAIVendorCheapest	$0.250	$0.025	$2.00	$2.25	—
OpenRouterHostviewing	$0.250	$0.025	$2.00	$2.25	—

What OpenAI: GPT-5 Mini costs in practice

Estimated cost at common usage volumes
Workload	Input tokens	Output tokens	Estimated cost
Short chat turn	1,000	500	$0.0013
Document summary	50,000	2,000	$0.02
1M tokens in, 200K out	1,000,000	200,000	$0.65

Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.

Common questions

How much does OpenAI: GPT-5 Mini cost per 1M tokens?: OpenAI: GPT-5 Mini costs $0.250 per 1M input tokens and $2.00 per 1M output tokens on the standard tier. Cached input is $0.025 per 1M.
What is OpenAI: GPT-5 Mini's context window?: OpenAI: GPT-5 Mini accepts up to 400,000 tokens in a single request, and can return up to 128,000 output tokens.
Is there a cheaper OpenRouter model than OpenAI: GPT-5 Mini?: Yes. Free Models Router is free per 1M input tokens versus $0.250 for OpenAI: GPT-5 Mini, with a 200,000 token context window.
Where does this OpenAI: GPT-5 Mini price come from?: From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

Head-to-head comparisons

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Other OpenRouter models

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