How much does GPT-5 mini cost?

GPT-5 mini is billed per token: $0.25 per million input tokens and $2 per million output tokens. Cached input reads cost $0.025 per million tokens.

What is the GPT-5 mini context window?

GPT-5 mini accepts up to 400,000 tokens of context and can return up to 16,384 output tokens per request.

Is GPT-5 mini cheaper than other OpenAI models?

No — 1 of the 8 OpenAI models we track have a lower input price, starting with GPT-5.6 Luna at $0.2/M.

Has GPT-5 mini pricing changed recently?

No. GPT-5 mini pricing has been stable across every weekly snapshot we've recorded.

GPT-5 mini Pricing

Name: GPT-5 mini
Brand: OpenAI
Price: 0.25 USD

OpenAI · GPT-5 · Live

Prices verified September 14, 2026

GPT-5 mini costs $0.25 per million input tokens and $2 per million output tokens on the OpenAI API. Cached input reads are billed at $0.025 per million tokens. It supports a 400,000-token context window and up to 16,384 output tokens per request. The model supports extended reasoning, image input, tool use. Pricing verified September 14, 2026.

GPT-5 mini API pricing

GPT-5 mini API pricing is $0.25 per million input tokens and $2 per million output tokens, verified September 14, 2026.

Input (per 1M tokens): $0.25
Output (per 1M tokens): $2
Cached input (per 1M tokens): $0.03
Batch discount: 50%
Context window: 400,000 tokens
Max output: 16,384 tokens

Estimate your GPT-5 mini cost

Capabilities

GPT-5 mini supports extended reasoning, image input, tool use.

Extended reasoningImage inputTool use

Price history

See full GPT-5 mini price history

No GPT-5 mini price changes have been recorded yet.

No price snapshots recorded yet.

Frequently asked questions

Short answers to the most common questions about GPT-5 mini pricing, limits, and capabilities.

Notes

OpenAI's workhorse tier. Cache read price estimated at ~10% of input (verify against openai.com/api/pricing). Cache Write 5m/1h N/A — OpenAI uses automatic caching with no separate write cost. Batch: 50% off. US-only: 1.1× uplift. Verified May 28, 2026. [2026-07-12] Price unchanged ($0.25/$2.00 per devtk.ai + pricepertoken.com), but GPT-5 mini is NO LONGER LISTED on OpenAI's official pricing page as of June 2026 — succeeded by GPT-5.4-mini. Candidate for Deprecated status; Khaled to decide. No price fields touched. [2026-07-13] Still absent from OpenAI pricing search results this run (GPT-5.4 mini $0.75/$4.50 and GPT-5.6 Luna now occupy this tier). No source disputes $0.25/$2.00 but no fresh confirmation either — verification produced no clear result. Prices untouched; deprecation decision still pending with Khaled. [2026-07-20] Verification attempt produced no clear result — recheck next run. Aggregator (pricepertoken) now shows $0.125/$1.00, but that is its cheapest-across-providers figure ("cheapest input fell 50% from $0.250"), not confirmed official OpenAI list pricing, and the model remains delisted from OpenAI's pricing page per prior runs. Conflicting sources → prices untouched. Deprecation decision still pending with Khaled. [2026-07-29] Verification attempt produced no clear result — recheck next run. Search confirms GPT-5 mini remains delisted from OpenAI's official pricing page (succeeded by GPT-5.4 mini $0.75/$4.50 and GPT-5.6 Luna $1/$6). No official price confirmation available. Prices untouched; deprecation decision still pending with Khaled. [2026-08-10] Verification attempt produced no clear result — recheck next run. Still delisted from OpenAI's official pricing page; devtk.ai still lists $0.25/$2.00 while aggregator cheapest-across-providers figures ($0.125/$1.00) remain unofficial. Prices untouched; deprecation decision still pending with Khaled. [2026-08-17] Verification attempt produced no clear result — recheck next run. Sixth consecutive inconclusive run. Search now describes GPT-5 mini explicitly as a "deprecated variant" (released Aug 7, 2025) at $0.125/$1.00 while GPT-5.4 mini ($0.75/$4.50) is the current mini tier; pricepertoken shows it still served by 3 providers. No official OpenAI list price. Prices untouched. RECOMMENDATION: set Status = Deprecated — six runs without an official price and an explicit third-party "deprecated" label is enough signal; leaving it Live risks the calculator quoting an unverifiable rate.