GPT-5.4 mini API pricing per million tokens
GPT-5.4 mini costs $0.75 per million input tokens and $4.50 per million output, with a 400K context window.
AIGROW credit covers Claude Opus 5.5, Claude Fable 5.2, Claude Fable 5.1, GPT-6 Astra, Claude Sonnet 5.5, GPT-6.1 Sol, GPT-6.1 Terra, Grok 4.7 and Gemini 4 Argon. GPT-6.1 Sol below list price
$25 a month brings $110 of API credit and cancels any time; $25 once buys $100. US dollars per million tokens, standard rate, shortest context band. Number 73 of 256 on the Epoch Capabilities Index by Epoch AI, data of 12 November 2026. CC BY 4.0 Newer model: GPT-6.1 Terra
- 1,000 support replies
- $4.05
- Cached input
- $0.075
- Context window
- 400,000 tokens
- Released
- 17 Mar 2026
- Weights
- Closed weights
From OpenAI’s own pages, 12 November 2026.
GPT-5.4 mini costs $0.75 per million input tokens and $4.50 per million output tokens on OpenAI’s own API, and $0.075 for cached input. At those prices 1,000 support replies cost $4.05, the 20th cheapest of 49 priced models on our list.
AIGROW API credit per million input / output tokens: Claude Opus 5.5 $1.60 / $8.00, Claude Fable 5.2 $3.20 / $16.00, Claude Fable 5.1 $4.00 / $20.00, GPT-6 Astra $2.50 / $12.50, Claude Sonnet 5.5 $0.80 / $4.00, GPT-6.1 Sol $0.50 / $2.50, GPT-6.1 Terra $0.25 / $1.25, Grok 4.7 $0.50 / $1.50 and Gemini 4 Argon $1.00 / $5.00. That is up to 75% below list price. See API credit
What a job costs
Three jobs, 1,000 runs of each, at the list price above, and where each puts GPT-5.4 mini among the 49 models with a list price.
| Job | 1,000 runs | Among 49 |
|---|---|---|
| Support reply3,000 in, 400 out. | $4.05 | 20th cheapest |
| Document summary25,000 in, 1,000 out. | $23.25 | 20th cheapest |
| Agent task80,000 in (70,000 cached), 3,000 out. | $26.25 | 18th cheapest |
The token counts are ours, chosen to look like real work; the prices are OpenAI’s. All three jobs stay under 100,000 tokens a request, below every long-context surcharge on the list.
GPT-5.4 mini on real small-business tasks
What the AIGROW benchmark measured when GPT-5.4 mini was given 20 office tasks, each marked pass or fail by fixed checks.
- Success rate
- 40% of 20 runs passed (95% interval 22 to 61%), 30th of 36 models.
- Cost per 1,000 passes
- $3.35, failed runs included.
- Answer time
- 1.7 s median, 2.3 s at the 90th percentile.
- Strongest and weakest
- Email triage (100% passed) and review replies (0%).
The small print
What the base rate above leaves out, copied from the maker’s pages: surcharges, discounts, promotions and cache pricing.
Batch 50% off. Context 400,000 with max input 272K.
GPT-5.4 mini against the models it is weighed with
Each comparison puts both list prices side by side and costs the same three jobs on each.
- vs Claude Haiku 4.5
- Anthropic's and OpenAI's older small models, at similar list prices.
- vs GPT-5.6 Luna
- The older mini against the newer nano tier, which now costs less than a third as much.
Other OpenAI models
| Model | Input | Output | Context | 1,000 replies |
|---|---|---|---|---|
| GPT-6 LunaOpenAI | $0.10 | $0.50 | 1.05M | $0.50 |
| GPT-5.6 LunaOpenAINewer model: GPT-6 Luna | $0.20 | $1.20 | 1.05M | $1.08 |
| GPT-5.4 nanoOpenAINewer model: GPT-6 Luna | $0.20 | $1.25 | 400K | $1.10 |
| GPT-6.1 TerraOpenAI | $1.00 | $5.00 | 1.05M | $5.00 |
| GPT-6.1 SolOpenAI | $2.00 | $10.00 | 1.05M | $10.00 |
| GPT-6 SolOpenAINewer model: GPT-6.1 Sol | $2.00 | $10.00 | 1.05M | $10.00 |
| GPT-5.6 TerraOpenAINewer model: GPT-6.1 Terra | $2.00 | $12.00 | 1.05M | $10.80 |
| GPT-5.6 SolOpenAINewer model: GPT-6.1 Sol | $4.00 | $20.00 | 1.05M | $20.00 |
| GPT-5.5OpenAINewer model: GPT-6 Astra | $5.00 | $30.00 | 1.05M | $27.00 |
| GPT-6 AstraOpenAI | $10.00 | $50.00 | 1.05M | $50.00 |
Where the price comes from
Read on 12 November 2026. Each price is the standard rate for the shortest context band, with no batch or priority discount; long-context surcharges, batch rates and promotions are in each model’s small print. No price was taken from a reseller.
Compare GPT-5.4 mini with 53 other models
The price list sets every model’s input and output price side by side, with what a support reply, a document summary and an agent task cost on each.
Prices checked 12 November 2026 · See them by release date