o4-mini
openai The API that serves this model and sets the prices shown here. o4-mini The model identifier to send in API requests. LLM Generates text from a prompt, so it can be compared with other LLMs on price and capability. Small The fast, low-latency tier of a model family, suited to high-volume or simple tasks. Retired Oct 23, 2026 This model has been retired and can no longer be relied on.Provider:
Knowledge cutoff: May 2024
Deprecated on 2026-04-22. Scheduled for shutdown October 23, 2026. Replacement: gpt-5.6-terra.
Sticker prices & cost-per-token
List rates as published by OpenAI, before any volume or enterprise discounts.
$1.10
$4.40
200,000 tokens
100,000
tokens per response (includes reasoning tokens)
Closed weights
$0.55 / $2.20
Get this data free
Want to stay updated on price changes on this model? Pull this data free (no API key required) here:
curl "https://coolhandlabs.com/api/v2/inference_apis?q%5Bmodel_eq%5D=o4-mini&q%5Bsource_api_eq%5D=openai"Pricing History
| Effective | Price |
|---|---|
| Sep 29, 2025 – present | Input cost: $1.10 / 1M, Output cost: $4.40 / 1M, Batch input cost: $0.55 / 1M, Batch output cost: $2.20 / 1M, Cached input cost: $0.00 / 1M, Cache creation cost: $0.00 / 1M, 5-minute cache write cost: $0.00 / 1M, 1-hour cache write cost: $0.00 / 1M, Reasoning output cost: $0.00 / 1M, Cache storage cost: $0.00 / 1M/hr |
History
Last change detected October 12, 2026 (14 days ago) by an automated scan.
No history recorded yet.
Source
No source URL recorded for this record yet.
Comparable models
No comparable models identified yet.
Reliability
No reliability incidents recorded in the last 90 days.
Frequently asked questions
o4-mini (OpenAI) costs $1.10 per 1M input tokens and $4.40 per 1M output tokens, as last published by OpenAI.
o4-mini has a context window of 200,000 tokens (the maximum combined input and output it can handle in a single request).
o4-mini sits in the small size tier. Size tiers run from micro (small enough to run on a device) through small, medium and large to extra large (frontier flagships), and are assigned from the model's family, naming and limits rather than its price.
o4-mini can generate up to 100,000 tokens in a single response. Reasoning (thinking) tokens count toward this limit.
o4-mini's training data runs through May 2024, so it may not know about later events. Coolhand records the cutoff at month precision, since providers often publish only the month.
o4-mini accepts image and text as input and produces text as output, as recorded in the Coolhand catalog.
No — the weights of o4-mini have not been released, so it is only available through hosted APIs.
Yes — deprecated o4-mini on October 23, 2026. Deprecated on 2026-04-22. Scheduled for shutdown October 23, 2026. Replacement: gpt-5.6-terra.
retired o4-mini on October 23, 2026.
Call GET https://coolhandlabs.com/api/v2/inference_apis?q[source_api_eq]=openai&q[model_eq]=o4-mini — free, no API key required, and scoped to just this model since source_api and model together are unique. See https://coolhandlabs.com/docs for the full REST API reference.
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