o3 Mini High
OpenAI · released Feb 12, 2025
- Type
- Proprietary
- Input
- $1.10
- Output
- $4.40
- Cached
- $0.55
List price · per 1M tokens · OpenAI at 200K context · source ↗
Our take
Written Aug 3, 2026o3 Mini High is a hosted-only reasoning model from OpenAI that handles up to 200,000 tokens in a single request. It excels at coding and mathematical tasks on the Arena leaderboards we track, though its creative writing score lags well behind its own technical strengths.
Choose this for coding work where its Arena Coding score is the headline strength, or for long-context tasks needing 200,000 tokens. It suits users already in the OpenAI ecosystem who want consistent pricing across both available providers. Skip it if you need strong creative writing, want to self-host, or are looking for price competition between hosts.
The case for it
- Coding performance leads its own benchmark suite: its Arena Coding score sits 122.8 points above its Creative Writing score.
- Mathematical reasoning is similarly strong relative to creative tasks, at 93.5 points higher on the same leaderboard.
- Scores are stable across evaluation dates: Arena Coding varied by only 0.0109 points between two July and August 2026 measurements.
The case against it
- Creative writing is the weakest area in its own profile, trailing its Maths score by 93.5 points and its Coding score by 122.8.
- No price competition between its two providers: both charge identical rates, so there is no cheaper option.
- Throughput is unverified on one of two providers; only OpenAI direct lists a speed figure.
How good is it?
IntelligencePuzzles, maths, exam questions
Arena Text (overall)96th of 143 · 1363.6via High
CodingWriting and fixing code on its own
Arena Coding83rd of 143 · 1434.7via High
Arena Coding is the only board that has scored it for this.
AgenticPlanning, calling tools, staying on task
Nobody we watch has scored o3 Mini High for this. We would take the rating from Arena Agent (IPS).
WritingWe do not rate this
Two boards come close and neither tests writing: Arena Creative Writing asks people which of two replies they prefer, and LiveBench Language tests whether a model understood a passage. So we show where o3 Mini High placed and give it no mark out of five.
These tests check whether a model follows instructions — a precondition for all the work above, but not a measure of how well that work is done, which is why they get no rating.
Every published score for this model6 scoresEvery figure we hold, from 6 boards, with who ran it and a link to the source — including the boards no rating above is built on.
Or rent it from someone else
Why this differs from the header. The strip above quotes OpenAI's own list price. This is the cheapest live offer at the widest standard context we hold, whoever is serving it — a reseller undercutting a lab is ordinary commerce, not an error.
- per 1M tokens
- $1.10 in / $4.40 out
- Context served
- 200K
- Throughput
- Not measured
| Provider | In / out per 1M tokens | Context | Throughput | Trains on prompts | Logs prompts | Zero retention |
|---|---|---|---|---|---|---|
| OpenRouter | $1.10 / $4.40 | 200K | not measured | Unknown | Unknown | Unknown |
| OpenAI | $1.10 / $4.40 | 200K | 31 tok/s | No | Yesunknown period | Unknown |
Across the 2 listings we hold: 1 say they do not train on prompts, 0 say they do and 1 do not say. 0 appear in the zero-retention registry we check; the rest are unknown to us rather than confirmed either way.
What each host's API supports
From the parameter list each endpoint publishes. Streaming is omitted: nothing we hold reports it, for any model.
- ✓
- Supported
- ✗
- Not supported
- Not published
- host gave no parameter list
| Provider | Tool calling | JSON output | Strict schema |
|---|---|---|---|
| OpenRouter | ✓ | ✓ | ✓ |
| OpenAI | ✓ | ✓ | ✓ |
Tool calling: 2 of 2 listings say yes. JSON output: 2 of 2 listings say yes. Strict schema: 2 of 2 listings say yes.
Models people weigh against o3 Mini High
When we formed this view
Dates behind this page
Prices last checked 9d ago
What we do not know about this model yet
- Nothing we hold says whether an endpoint streams, so we do not show it either way.
- 1 of 2 listings do not say whether they train on prompts.
Licence and identifiers
What the licence allowsWe hold no licence record for this model. Inside are the identifiers you need to pull it — its Hugging Face repo where we have one, our slug and a machine-readable card.
Licence
Commercial API terms. We hold no licence record for this model, so there is nothing to summarise here.
Identifiers
- Modality record
- text+file->text
- Catalogue slug
- openai-o3-mini-high