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OpenAI o3 Mini

  • OpenAI
  • Released January 31, 2025
  • No public weights listed
  • 200K context

As of October 20, 2026, OpenAI o3 Mini ranks #137 of 213 models overall with 12.5 on the Artificial Analysis Intelligence Index. Its strongest category is coding, where it ranks #73 of 136. OpenAI o3 Mini costs $1.10 per million input tokens and $4.40 per million output tokens. It was released on January 31, 2025.

Its output price ranks 252 of 349 priced models, counting from the cheapest.

  • Coding index 52.1 Partial, 2 benchmarks
  • Cost per solved task Not computable No published attempt cost
  • Output, per million tokens $4.40 252 of 349 from the cheapest
  • Input, per million tokens $1.10 OpenRouter list price
  • Context window 200K Tokens per request

About and specs

OpenAI o3-mini is a cost-efficient language model optimized for STEM reasoning tasks, particularly excelling in science, mathematics, and coding. This model supports the `reasoning_effort` parameter, which can be set to...

API model id openai/o3-mini
  • Tool callingListed
  • Structured outputsListed
  • JSON modeListed
  • Reasoning modeListed
  • Web searchNot listed
Takes in
Text, Files
Gives back
Text
Context window
200K tokens
Max output
100K tokens
Knowledge cutoff
October 31, 2023
Cached input $/Mtok
$0.55
Cache write $/Mtok
No cache write price listed
Reasoning $/Mtok
Not priced apart
Web search, per request
$0.01
Tokenizer
GPT
Requests moderated
Yes, by the provider
Withdrawn on
No date announced
Parameters
Not published
Downloads, all time
No public weights
Training compute
No estimate published
Output speed
Not measured
Time to first token
Not measured
Speed on OpenRouter
154 tokens/s via OpenAI, 30-minute median
First token on OpenRouter
2.7 s via OpenAI, 30-minute median

Benchmarks: 70 of 190 measured

The tick on a coding bar is the median of every model measured on it. Outside coding, the place is this model's rank on that board. A board that never ran the model says so.

Where it stands

Full leaderboard
#137of 213 overall 12.5AA Intelligence Index

Measured in 4 of 6 categories. A place counts only the models measured on that board.

Coding index

52.1
  • Aider polyglot 60.4% 60 of 100
  • SWE-bench Verified 42.4% 42 of 100
  • LiveBench coding Not measured
  • LMArena WebDev Elo, scaled from 1200 to 1900 Not measured

The index averages only the coding benchmarks that have a result; the others are skipped, never filled in. How it is weighted

Other public boards

All rankings

Coding10 of 34 boards

4 more coding boards

Not measured on SWE-bench (full test set), SWE-bench Multimodal, SWE-bench Multilingual, AA Coding Index, SWE-bench Verified (Vals AI), Terminal-Bench 4 (Vals AI), Vibe Code Bench (Vals AI), Code migration (Vals AI), ProgramBench (Vals AI), IOI (Vals AI), Terminal-Bench 2.1 (Vals AI), SWE-bench Multimodal (Vals AI), Vibe Code Bench 1-100 (Vals AI), SkillsBench (Vals AI), CyberBench (Vals AI), Terminal-Bench, DeepSWE, FrontierCode, FrontierSWE, MirrorCode, ALE-Bench, LMArena WebDev: React, LMArena WebDev: HTML, LMArena WebDev: from an image

Intelligence2 of 2 boards

Agentic work1 of 39 boards

Not measured on AA Agentic Index, Design Arena: agents building web apps, Design Arena: agents building full-stack apps, Design Arena: agents building mobile apps, Design Arena: agents building Android apps, Design Arena: agents building Godot games, Design Arena: agents building games, Design Arena: HTML slides, Design Arena: PowerPoint slides, Design Arena: spreadsheets, LiveBench research, LiveBench browser, LiveBench long agentic, SREBench (Vals AI), Finance Agent (Vals AI), Tax Agent Bench (Vals AI), Legal Research Bench (Vals AI), Harvey's Legal Agent Benchmark (Vals AI), Excel Modeling Benchmark (Vals AI), BioMysteryBench (Vals AI), Terminal-Bench-Science (Vals AI), Vals Science Index, Time Horizon Index (Vals AI), CUA-bench (Vals AI), Robo-bench (Vals AI), APEX-Agents, METR time horizons, Remote Labor Index, GDPval, OSWorld 2.0, BALROG, DeepResearch Bench, PostTrainBench, TheAgentCompany, OSWorld, SpireClimb, Vending-Bench 2, LMArena Search

Reasoning12 of 21 boards

6 more reasoning boards

Not measured on LiveBench reasoning, MysteryMechanism (Vals AI), MMMU Pro (Vals AI), Humanity's Last Exam, EBR-bench, VPCT, BIG-Bench Hard, LMArena Vision: diagrams, LMArena Vision: homework

Math9 of 13 boards

3 more math boards

Not measured on AA Math Index, AIME 2025 (Artificial Analysis run), ProofBench, GSM8K

Knowledge11 of 17 boards

5 more knowledge boards

Not measured on CaseLaw (Vals AI), MortgageTax (Vals AI), MedCode (Vals AI), MMLU, GeoBench, AI2 Reasoning Challenge

Web design0 of 9 boards

Not measured on Design Arena: websites, Design Arena: UI components, Design Arena: game dev, Design Arena: data viz, Design Arena: 3D, Design Arena: all code categories, Design Arena: SVG, Design Arena: ASCII art, LiveBench design

General23 of 46 boards

17 more general boards

Not measured on Vals Index, LiveBench data analysis, Public Benefits Bench (Vals AI), SAGE (Vals AI), MedScribe (Vals AI), Vals Multimodal Index, CL-bench, Surface Evolver Bench, Furniture assembly, ExploitBench, HellaSwag, WinoGrande, PIQA, CL-bench Life, LMArena Vision, LMArena Vision: English, LMArena Vision: Chinese, LMArena Vision: reading text, LMArena Vision: humor, LMArena Vision: captioning, LMArena Vision: recognizing things, LMArena Vision: creative writing, LMArena Document

Image generation0 of 5 boards

Not measured on Design Arena: images, Design Arena: graphic design, Design Arena: logos, LMArena Text to Image, LMArena Image Edit

Public boards shown as published (Vals AI, Artificial Analysis, Design Arena) and kept out of the coding index. Each links to its source on the benchmark page.

All 190 benchmarks as a table
Benchmark results for OpenAI o3 Mini
BenchmarkResultIndex weight
Aider polyglotCoding 60.4% 35%
SWE-bench VerifiedCoding 42.4% 30%
SWE-bench LiteCoding 32.3% Not in index
SWE-bench (full test set)Coding Not measured Not in index
SWE-bench MultimodalCoding Not measured Not in index
SWE-bench MultilingualCoding Not measured Not in index
LiveBench codingCoding Not measured 20%
LMArena WebDevCoding Not measured 15%
Vals IndexGeneral Not measured Not in index
GPQA DiamondReasoning 75.5% Not in index
AIMEMath 86.5% Not in index
MMLU ProKnowledge 78.7% Not in index
AA Intelligence IndexIntelligence 12.5 Not in index
AA Coding IndexCoding Not measured Not in index
AA Agentic IndexAgentic work Not measured Not in index
Design Arena: websitesWeb design Not measured Not in index
Design Arena: UI componentsWeb design Not measured Not in index
Design Arena: game devWeb design Not measured Not in index
Design Arena: data vizWeb design Not measured Not in index
Design Arena: 3DWeb design Not measured Not in index
Design Arena: all code categoriesWeb design Not measured Not in index
Design Arena: SVGWeb design Not measured Not in index
Design Arena: ASCII artWeb design Not measured Not in index
Design Arena: agents building web appsAgentic work Not measured Not in index
Design Arena: agents building full-stack appsAgentic work Not measured Not in index
Design Arena: agents building mobile appsAgentic work Not measured Not in index
Design Arena: agents building Android appsAgentic work Not measured Not in index
Design Arena: agents building Godot gamesAgentic work Not measured Not in index
Design Arena: agents building gamesAgentic work Not measured Not in index
Design Arena: HTML slidesAgentic work Not measured Not in index
Design Arena: PowerPoint slidesAgentic work Not measured Not in index
Design Arena: spreadsheetsAgentic work Not measured Not in index
Design Arena: imagesImage generation Not measured Not in index
Design Arena: graphic designImage generation Not measured Not in index
Design Arena: logosImage generation Not measured Not in index
LiveBench reasoningReasoning Not measured Not in index
LiveBench data analysisGeneral Not measured Not in index
LiveBench researchAgentic work Not measured Not in index
LiveBench browserAgentic work Not measured Not in index
LiveBench long agenticAgentic work Not measured Not in index
LiveBench designWeb design Not measured Not in index
LiveCodeBench (Vals AI)Coding 71.5% Not in index
SWE-bench Verified (Vals AI)Coding Not measured Not in index
Terminal-Bench 4 (Vals AI)Coding Not measured Not in index
Vibe Code Bench (Vals AI)Coding Not measured Not in index
Code migration (Vals AI)Coding Not measured Not in index
ProgramBench (Vals AI)Coding Not measured Not in index
SREBench (Vals AI)Agentic work Not measured Not in index
IOI (Vals AI)Coding Not measured Not in index
Terminal-Bench 2.1 (Vals AI)Coding Not measured Not in index
SWE-bench Multimodal (Vals AI)Coding Not measured Not in index
Vibe Code Bench 1-100 (Vals AI)Coding Not measured Not in index
SkillsBench (Vals AI)Coding Not measured Not in index
CyberBench (Vals AI)Coding Not measured Not in index
Finance Agent (Vals AI)Agentic work Not measured Not in index
Tax Agent Bench (Vals AI)Agentic work Not measured Not in index
Legal Research Bench (Vals AI)Agentic work Not measured Not in index
Harvey's Legal Agent Benchmark (Vals AI)Agentic work Not measured Not in index
Excel Modeling Benchmark (Vals AI)Agentic work Not measured Not in index
BioMysteryBench (Vals AI)Agentic work Not measured Not in index
Terminal-Bench-Science (Vals AI)Agentic work Not measured Not in index
Vals Science IndexAgentic work Not measured Not in index
Time Horizon Index (Vals AI)Agentic work Not measured Not in index
CUA-bench (Vals AI)Agentic work Not measured Not in index
Robo-bench (Vals AI)Agentic work Not measured Not in index
Public Benefits Bench (Vals AI)General Not measured Not in index
MysteryMechanism (Vals AI)Reasoning Not measured Not in index
MMMU Pro (Vals AI)Reasoning Not measured Not in index
MATH 500 (Vals AI)Math 91.8% Not in index
MGSM (Vals AI)Math 91.3% Not in index
SAGE (Vals AI)General Not measured Not in index
LegalBench (Vals AI)Knowledge 71.5% Not in index
CaseLaw (Vals AI)Knowledge Not measured Not in index
CorpFin (Vals AI)Knowledge 45.3% Not in index
TaxEval (Vals AI)Knowledge 69.4% Not in index
MortgageTax (Vals AI)Knowledge Not measured Not in index
MedQA (Vals AI)Knowledge 94.8% Not in index
MedCode (Vals AI)Knowledge Not measured Not in index
MedScribe (Vals AI)General Not measured Not in index
Vals Multimodal IndexGeneral Not measured Not in index
AA Math IndexMath Not measured Not in index
GPQA Diamond (Artificial Analysis run)Reasoning 77.3% Not in index
Humanity's Last Exam (Artificial Analysis run)Reasoning 12.0% Not in index
MMLU Pro (Artificial Analysis run)Knowledge 80.2% Not in index
LiveCodeBench (Artificial Analysis run)Coding 73.4% Not in index
SciCodeCoding 42.8% Not in index
Terminal-Bench Hard (Artificial Analysis run)Coding 6.8% Not in index
IFBenchGeneral 67.1% Not in index
Long context reasoning (AA-LCR)General 43.0% Not in index
τ²-Bench TelecomAgentic work 31.3% Not in index
AIME 2025 (Artificial Analysis run)Math Not measured Not in index
Terminal-BenchCoding Not measured Not in index
DeepSWECoding Not measured Not in index
FrontierCodeCoding Not measured Not in index
FrontierSWECoding Not measured Not in index
GSO-BenchCoding 1.3% Not in index
WeirdMLCoding 43.7% Not in index
MirrorCodeCoding Not measured Not in index
APEX-AgentsAgentic work Not measured Not in index
METR time horizonsAgentic work Not measured Not in index
Remote Labor IndexAgentic work Not measured Not in index
GDPvalAgentic work Not measured Not in index
OSWorld 2.0Agentic work Not measured Not in index
BALROGAgentic work Not measured Not in index
DeepResearch BenchAgentic work Not measured Not in index
PostTrainBenchAgentic work Not measured Not in index
GPQA Diamond (Epoch AI run)Reasoning 77.0% Not in index
ARC-AGIReasoning 34.5% Not in index
ARC-AGI-2Reasoning 3.0% Not in index
Humanity's Last ExamReasoning Not measured Not in index
SimpleBenchReasoning 22.8% Not in index
Chess puzzlesReasoning 15.0% Not in index
Mystery game puzzlesReasoning 7.0% Not in index
EBR-benchReasoning Not measured Not in index
OTIS Mock AIMEMath 76.9% Not in index
FrontierMath, tiers 1 to 3Math 18.6% Not in index
FrontierMath, tier 4Math 0.0% Not in index
ProofBenchMath Not measured Not in index
MATH level 5Math 96.5% Not in index
GSM8KMath Not measured Not in index
SimpleQA VerifiedKnowledge 15.3% Not in index
MMLUKnowledge Not measured Not in index
GeoBenchKnowledge Not measured Not in index
DTBenchGeneral 68.8% Not in index
LMCAGeneral 19.0% Not in index
Fiction.LiveBenchGeneral 50.0% Not in index
Creative writing (Lech Mazur)General 61.7% Not in index
CL-benchGeneral Not measured Not in index
Surface Evolver BenchGeneral Not measured Not in index
Furniture assemblyGeneral Not measured Not in index
ExploitBenchGeneral Not measured Not in index
CybenchCoding 22.5% Not in index
TheAgentCompanyAgentic work Not measured Not in index
OSWorldAgentic work Not measured Not in index
SpireClimbAgentic work Not measured Not in index
VPCTReasoning Not measured Not in index
BIG-Bench HardReasoning Not measured Not in index
AI2 Reasoning ChallengeKnowledge Not measured Not in index
HellaSwagGeneral Not measured Not in index
WinoGrandeGeneral Not measured Not in index
PIQAGeneral Not measured Not in index
CL-bench LifeGeneral Not measured Not in index
ALE-BenchCoding Not measured Not in index
Vending-Bench 2Agentic work Not measured Not in index
Epoch Capabilities IndexIntelligence 140.3 Not in index
LMArena TextGeneral 1319 Not in index
LMArena Text: codingCoding 1363 Not in index
LMArena Text: hard promptsReasoning 1333 Not in index
LMArena Text: mathMath 1374 Not in index
LMArena Text: instruction followingGeneral 1315 Not in index
LMArena Text: creative writingGeneral 1273 Not in index
LMArena VisionGeneral Not measured Not in index
LMArena Text: EnglishGeneral 1333 Not in index
LMArena Text: non-EnglishGeneral 1300 Not in index
LMArena Text: ChineseGeneral 1319 Not in index
LMArena Text: GermanGeneral 1299 Not in index
LMArena Text: JapaneseGeneral 1265 Not in index
LMArena Text: KoreanGeneral 1259 Not in index
LMArena Text: FrenchGeneral 1311 Not in index
LMArena Text: SpanishGeneral 1310 Not in index
LMArena Text: RussianGeneral 1301 Not in index
LMArena Text: PolishGeneral 1294 Not in index
LMArena Text: multi-turnGeneral 1313 Not in index
LMArena Text: longer queriesGeneral 1327 Not in index
LMArena Text: expertReasoning 1329 Not in index
LMArena Text: hard prompts in EnglishReasoning 1343 Not in index
LMArena Text: software and ITCoding 1344 Not in index
LMArena Text: mathematical workMath 1379 Not in index
LMArena Text: scienceKnowledge 1315 Not in index
LMArena Text: medicine and healthcareKnowledge 1299 Not in index
LMArena Text: legal and governmentKnowledge 1305 Not in index
LMArena Text: business and financeKnowledge 1289 Not in index
LMArena Text: writing and languageGeneral 1295 Not in index
LMArena Text: entertainment and mediaGeneral 1273 Not in index
LMArena WebDev: ReactCoding Not measured Not in index
LMArena WebDev: HTMLCoding Not measured Not in index
LMArena WebDev: from an imageCoding Not measured Not in index
LMArena Vision: EnglishGeneral Not measured Not in index
LMArena Vision: ChineseGeneral Not measured Not in index
LMArena Vision: reading textGeneral Not measured Not in index
LMArena Vision: diagramsReasoning Not measured Not in index
LMArena Vision: homeworkReasoning Not measured Not in index
LMArena Vision: humorGeneral Not measured Not in index
LMArena Vision: captioningGeneral Not measured Not in index
LMArena Vision: recognizing thingsGeneral Not measured Not in index
LMArena Vision: creative writingGeneral Not measured Not in index
LMArena SearchAgentic work Not measured Not in index
LMArena DocumentGeneral Not measured Not in index
LMArena Text to ImageImage generation Not measured Not in index
LMArena Image EditImage generation Not measured Not in index

What it costs

A list price says what a token costs. The cost per solved task says what a working answer costs, which is the number that decides.

Output price against the market

o3 Mini pricing
$0.0112Dashed line: median $1.80, log scale$600.00
$4.40 per million output tokens is cheaper than 27% of the 344 paid models in the catalog.

Cost per solved task

How it is computed

SWE-bench Verified lists a pass rate for this model but no cost per attempt, on Vals AI and on swebench.com alike. We leave the number out rather than estimate it.

Nearly as good as o3 Mini, for less

What the boards say about its runs

Beside a result, many boards publish what the run cost, how long it took, the tokens it spent or the votes behind a rating. Each figure as its board printed it, one board per row.

What each board publishes about the runs behind OpenAI: o3 Mini's results
BoardResultWhat the run costAlso published
Aider polyglot 60.4% $18.16 of the run Solved on the first try 21.0% · Edits well formed 93.3% · Time per exercise 2m 05s
WeirdML 43.7% $0.1745 per run Median lines of code 158
ARC-AGI 34.5% $0.3989 per task Nothing else
ARC-AGI-2 3.0% $0.5472 per task Nothing else
GPQA Diamond 75.5% Not published Latency, as printed 1m 40s
AIME 86.5% Not published Latency, as printed 2m 35s
MMLU Pro 78.7% Not published Latency, as printed 22 s
LiveCodeBench (Vals AI) 71.5% Not published Latency, as printed 54 s
MATH 500 (Vals AI) 91.8% Not published Latency, as printed 14 s
MGSM (Vals AI) 91.3% Not published Latency, as printed 16 s
LegalBench (Vals AI) 71.5% Not published Latency, as printed 12 s
CorpFin (Vals AI) 45.3% Not published Latency, as printed 31 s
30 more boards
What each board publishes about the runs behind OpenAI: o3 Mini's results, continued
TaxEval (Vals AI) 69.4% Not published Latency, as printed 1m 14s
MedQA (Vals AI) 94.8% Not published Latency, as printed 8.4 s
LMArena Text 1319 Elo Not published Votes 56,741 · Interval (±) ±3.5
LMArena Text: coding 1363 Elo Not published Votes 9,400 · Interval (±) ±6.5
LMArena Text: hard prompts 1333 Elo Not published Votes 19,989 · Interval (±) ±4.9
LMArena Text: math 1374 Elo Not published Votes 4,699 · Interval (±) ±8.6
LMArena Text: instruction following 1315 Elo Not published Votes 16,949 · Interval (±) ±5.1
LMArena Text: creative writing 1273 Elo Not published Votes 8,163 · Interval (±) ±7.0
LMArena Text: English 1333 Elo Not published Votes 28,651 · Interval (±) ±4.4
LMArena Text: non-English 1300 Elo Not published Votes 28,084 · Interval (±) ±4.4
LMArena Text: Chinese 1319 Elo Not published Votes 3,880 · Interval (±) ±9.8
LMArena Text: German 1299 Elo Not published Votes 1,345 · Interval (±) ±16.4
LMArena Text: Japanese 1265 Elo Not published Votes 1,412 · Interval (±) ±16.5
LMArena Text: Korean 1259 Elo Not published Votes 1,103 · Interval (±) ±18.8
LMArena Text: French 1311 Elo Not published Votes 709 · Interval (±) ±22.6
LMArena Text: Spanish 1310 Elo Not published Votes 918 · Interval (±) ±20.3
LMArena Text: Russian 1301 Elo Not published Votes 4,933 · Interval (±) ±8.4
LMArena Text: Polish 1294 Elo Not published Votes 2,638 · Interval (±) ±12.3
LMArena Text: multi-turn 1313 Elo Not published Votes 9,301 · Interval (±) ±6.6
LMArena Text: longer queries 1327 Elo Not published Votes 9,263 · Interval (±) ±6.5
LMArena Text: expert 1329 Elo Not published Votes 2,880 · Interval (±) ±11.4
LMArena Text: hard prompts in English 1343 Elo Not published Votes 10,232 · Interval (±) ±6.2
LMArena Text: software and IT 1344 Elo Not published Votes 16,581 · Interval (±) ±5.3
LMArena Text: mathematical work 1379 Elo Not published Votes 4,357 · Interval (±) ±9.0
LMArena Text: science 1315 Elo Not published Votes 9,611 · Interval (±) ±6.5
LMArena Text: medicine and healthcare 1299 Elo Not published Votes 3,036 · Interval (±) ±11.2
LMArena Text: legal and government 1305 Elo Not published Votes 3,598 · Interval (±) ±10.2
LMArena Text: business and finance 1289 Elo Not published Votes 7,679 · Interval (±) ±7.1
LMArena Text: writing and language 1295 Elo Not published Votes 13,414 · Interval (±) ±5.6
LMArena Text: entertainment and media 1273 Elo Not published Votes 10,244 · Interval (±) ±6.2

On these lists

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All 135 comparisons for o3 Mini