o4-mini — pricing & specs

o4-mini is a fast model from OpenAI, at capability tier 3 of 8. Live $/M-token pricing and specs from the Mintok catalog.

$/M-token pricing

Input
$1.10
per M tokens
Output
$4.40
per M tokens
Cached input
$0.28
per M tokens

What o4-mini costs in practice

ScenarioEst. cost
1M input + 1M output tokens$5.50
A 10K-token request (8K in / 2K out)$0.018
1,000 agent runs (~2K in / 500 out each)$4.40
1M-token RAG chat session (900K cached in / 100K out)$0.688

Estimated from list price at the token mixes shown; your real cost depends on prompt/response length and cache hit-rate. Model your own volume →

Specifications

Vendor
OpenAI
Family
o4-mini
Capability tier
3 / 8
Size class
FAST
Category
GENERAL
Parameters
70B total · 20B active (MoE)
Context window
200,000 tokens
Licensing
Proprietary

Carbon footprint (modeled)

Energy
0.078
kWh / M-token
Emissions
37.5
gCO₂ / M-token

Modeled decode on a reference NVIDIA Rubin Ultra VR300 at 50% MBU, batch 32, global-avg grid. Compare all models & grids →

Alternatives at tier 3

Same capability tier, sorted by output price — the cheaper-capable options.

FAQ

How much does o4-mini cost per token?

o4-mini costs $1.10 per million input tokens and $4.40 per million output tokens (cached input $0.28/M).

What does a typical request with o4-mini cost?

At list price, a 10K-token request (8K in / 2K out) with o4-mini costs about $0.018, and 1,000 agent runs (~2K in / 500 out each) about $4.40.

What is o4-mini's context window?

o4-mini supports a 200,000-token context window.

What capability tier is o4-mini?

o4-mini sits at capability tier 3 of 8 on the Mintok scale (FAST size class).

Is o4-mini open-source or proprietary?

o4-mini is a proprietary model from OpenAI, accessed via API.

Put o4-mini to work

Benchmark it on your prompts, or size a deployment and compare $/M-token against alternatives.

Pricing and specs are maintained by Mintok's catalog watchers from public sources. Not investment advice. Methodology.