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OpenAI o3

  • OpenAI
  • Released April 16, 2025
  • No public weights listed
  • 200K context

As of October 20, 2026, OpenAI o3 ranks #101 of 213 models overall with 20.2 on the Artificial Analysis Intelligence Index. Its strongest category is coding, where it ranks #30 of 136. OpenAI o3 costs $2.00 per million input tokens and $8.00 per million output tokens. It was released on April 16, 2025.

Its output price ranks 275 of 349 priced models, counting from the cheapest.

  • Coding index 70.7 Partial, 2 benchmarks
  • Cost per solved task $0.571 One SWE-bench Verified task, solved
  • Output, per million tokens $8.00 275 of 349 from the cheapest
  • Input, per million tokens $2.00 OpenRouter list price
  • Context window 200K Tokens per request

About and specs

o3 is a well-rounded and powerful model across domains. It sets a new standard for math, science, coding, and visual reasoning tasks. It also excels at technical writing and instruction-following....

API model id openai/o3
  • Tool callingListed
  • Structured outputsListed
  • JSON modeListed
  • Reasoning modeListed
  • Web searchNot listed
Takes in
Images, Text, Files
Gives back
Text
Context window
200K tokens
Max output
100K tokens
Knowledge cutoff
June 30, 2024
Cached input $/Mtok
$0.50
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Withdrawn on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
154 tokens/s
Time to first token
5.3 s
Speed on OpenRouter
59 tokens/s via OpenAI, 30-minute median
First token on OpenRouter
1.9 s via OpenAI, 30-minute median

Benchmarks: 98 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
#101of 213 overall 20.2AA Intelligence Index

Measured in 5 of 6 categories. A place counts only the models measured on that board.

Coding index

70.7
  • Aider polyglot 81.3% 81 of 100
  • SWE-bench Verified 58.4% 58 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

Coding9 of 34 boards

3 more coding boards

Not measured on SWE-bench Lite, SWE-bench (full test set), 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), SciCode, Terminal-Bench, DeepSWE, FrontierCode, FrontierSWE, MirrorCode, Cybench, LMArena WebDev: React, LMArena WebDev: HTML, LMArena WebDev: from an image

Intelligence2 of 2 boards

Agentic work5 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, Remote Labor Index, OSWorld 2.0, BALROG, PostTrainBench, TheAgentCompany, SpireClimb, Vending-Bench 2, LMArena Search

Reasoning17 of 21 boards

11 more reasoning boards

Not measured on LiveBench reasoning, MysteryMechanism (Vals AI), EBR-bench, BIG-Bench Hard

Math10 of 13 boards

4 more math boards

Not measured on FrontierMath, tier 4, ProofBench, GSM8K

Knowledge14 of 17 boards

8 more knowledge boards

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

Web design5 of 9 boards

Not measured on Design Arena: 3D, Design Arena: SVG, Design Arena: ASCII art, LiveBench design

General34 of 46 boards

28 more general boards

Not measured on Vals Index, LiveBench data analysis, Public Benefits Bench (Vals AI), Vals Multimodal Index, Surface Evolver Bench, Furniture assembly, ExploitBench, HellaSwag, WinoGrande, PIQA, CL-bench Life, 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
BenchmarkResultIndex weight
Aider polyglotCoding 81.3% 35%
SWE-bench VerifiedCoding 58.4% 30%
SWE-bench LiteCoding Not measured Not in index
SWE-bench (full test set)Coding Not measured Not in index
SWE-bench MultimodalCoding 36.0% 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 84.1% Not in index
AIMEMath 85.3% Not in index
MMLU ProKnowledge 85.6% Not in index
AA Intelligence IndexIntelligence 20.2 Not in index
AA Coding IndexCoding Not measured Not in index
AA Agentic IndexAgentic work Not measured Not in index
Design Arena: websitesWeb design 1036 Not in index
Design Arena: UI componentsWeb design 1018 Not in index
Design Arena: game devWeb design 1034 Not in index
Design Arena: data vizWeb design 1200 Not in index
Design Arena: 3DWeb design Not measured Not in index
Design Arena: all code categoriesWeb design 1021 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 83.9% 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 80.4% Not in index
MATH 500 (Vals AI)Math 94.6% Not in index
MGSM (Vals AI)Math 91.8% Not in index
SAGE (Vals AI)General 41.8% Not in index
LegalBench (Vals AI)Knowledge 83.8% Not in index
CaseLaw (Vals AI)Knowledge Not measured Not in index
CorpFin (Vals AI)Knowledge 59.7% Not in index
TaxEval (Vals AI)Knowledge 74.6% Not in index
MortgageTax (Vals AI)Knowledge 65.7% Not in index
MedQA (Vals AI)Knowledge 96.1% Not in index
MedCode (Vals AI)Knowledge 47.3% Not in index
MedScribe (Vals AI)General 76.7% Not in index
Vals Multimodal IndexGeneral Not measured Not in index
AA Math IndexMath 88.3 Not in index
GPQA Diamond (Artificial Analysis run)Reasoning 82.7% Not in index
Humanity's Last Exam (Artificial Analysis run)Reasoning 20.1% Not in index
MMLU Pro (Artificial Analysis run)Knowledge 85.3% Not in index
LiveCodeBench (Artificial Analysis run)Coding 80.8% Not in index
SciCodeCoding Not measured Not in index
Terminal-Bench Hard (Artificial Analysis run)Coding 37.1% Not in index
IFBenchGeneral 71.4% Not in index
Long context reasoning (AA-LCR)General 74.7% Not in index
τ²-Bench TelecomAgentic work 80.7% Not in index
AIME 2025 (Artificial Analysis run)Math 88.3% 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 8.8% Not in index
WeirdMLCoding 52.4% Not in index
MirrorCodeCoding Not measured Not in index
APEX-AgentsAgentic work Not measured Not in index
METR time horizonsAgentic work 65.4% Not in index
Remote Labor IndexAgentic work Not measured Not in index
GDPvalAgentic work 30.8% Not in index
OSWorld 2.0Agentic work Not measured Not in index
BALROGAgentic work Not measured Not in index
DeepResearch BenchAgentic work 45.2% Not in index
PostTrainBenchAgentic work Not measured Not in index
GPQA Diamond (Epoch AI run)Reasoning 81.8% Not in index
ARC-AGIReasoning 60.8% Not in index
ARC-AGI-2Reasoning 6.5% Not in index
Humanity's Last ExamReasoning 20.3% Not in index
SimpleBenchReasoning 53.1% Not in index
Chess puzzlesReasoning 37.0% Not in index
Mystery game puzzlesReasoning 29.0% Not in index
EBR-benchReasoning Not measured Not in index
OTIS Mock AIMEMath 84.4% Not in index
FrontierMath, tiers 1 to 3Math 33.3% Not in index
FrontierMath, tier 4Math Not measured Not in index
ProofBenchMath Not measured Not in index
MATH level 5Math 97.8% Not in index
GSM8KMath Not measured Not in index
SimpleQA VerifiedKnowledge 49.4% Not in index
MMLUKnowledge Not measured Not in index
GeoBenchKnowledge 74.0% Not in index
DTBenchGeneral 84.8% Not in index
LMCAGeneral 39.7% Not in index
Fiction.LiveBenchGeneral 88.9% Not in index
Creative writing (Lech Mazur)General 83.9% Not in index
CL-benchGeneral 17.8% 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 Not measured Not in index
TheAgentCompanyAgentic work Not measured Not in index
OSWorldAgentic work 23.0% Not in index
SpireClimbAgentic work Not measured Not in index
VPCTReasoning 52.0% 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 933.5 Not in index
Vending-Bench 2Agentic work Not measured Not in index
Epoch Capabilities IndexIntelligence 146.9 Not in index
LMArena TextGeneral 1410 Not in index
LMArena Text: codingCoding 1407 Not in index
LMArena Text: hard promptsReasoning 1402 Not in index
LMArena Text: mathMath 1426 Not in index
LMArena Text: instruction followingGeneral 1368 Not in index
LMArena Text: creative writingGeneral 1359 Not in index
LMArena VisionGeneral 1214 Not in index
LMArena Text: EnglishGeneral 1416 Not in index
LMArena Text: non-EnglishGeneral 1401 Not in index
LMArena Text: ChineseGeneral 1437 Not in index
LMArena Text: GermanGeneral 1420 Not in index
LMArena Text: JapaneseGeneral 1404 Not in index
LMArena Text: KoreanGeneral 1370 Not in index
LMArena Text: FrenchGeneral 1430 Not in index
LMArena Text: SpanishGeneral 1395 Not in index
LMArena Text: RussianGeneral 1406 Not in index
LMArena Text: PolishGeneral 1438 Not in index
LMArena Text: multi-turnGeneral 1405 Not in index
LMArena Text: longer queriesGeneral 1372 Not in index
LMArena Text: expertReasoning 1402 Not in index
LMArena Text: hard prompts in EnglishReasoning 1411 Not in index
LMArena Text: software and ITCoding 1415 Not in index
LMArena Text: mathematical workMath 1423 Not in index
LMArena Text: scienceKnowledge 1429 Not in index
LMArena Text: medicine and healthcareKnowledge 1447 Not in index
LMArena Text: legal and governmentKnowledge 1428 Not in index
LMArena Text: business and financeKnowledge 1393 Not in index
LMArena Text: writing and languageGeneral 1371 Not in index
LMArena Text: entertainment and mediaGeneral 1373 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 1221 Not in index
LMArena Vision: ChineseGeneral 1237 Not in index
LMArena Vision: reading textGeneral 1218 Not in index
LMArena Vision: diagramsReasoning 1220 Not in index
LMArena Vision: homeworkReasoning 1234 Not in index
LMArena Vision: humorGeneral 1222 Not in index
LMArena Vision: captioningGeneral 1210 Not in index
LMArena Vision: recognizing thingsGeneral 1234 Not in index
LMArena Vision: creative writingGeneral 1201 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 pricing
$0.0112Dashed line: median $1.80, log scale$600.00
$8.00 per million output tokens is cheaper than 21% of the 344 paid models in the catalog.

Cost per solved task

How it is computed
$0.3337one attempt, swebench.com 58.4%tasks solved $0.571per solved task

Nearly as good as o3, 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's results
BoardResultWhat the run costAlso published
Aider polyglot 81.3% $21.23 of the run Solved on the first try 40.0% · Edits well formed 94.7% · Time per exercise 3m 17s · Input tokens, whole run 3.1M · Output tokens, whole run 2.0M
SWE-bench Verified 58.4% $0.3337 per attempt Nothing else
WeirdML 52.4% $0.2261 per run Median lines of code 134
ARC-AGI 60.8% $0.5002 per task Nothing else
ARC-AGI-2 6.5% $0.8339 per task Nothing else
ALE-Bench 933.5 $0.1035 per problem Tokens per problem 15,284
GPQA Diamond 84.1% Not published Latency, as printed 1m 06s
AIME 85.3% Not published Latency, as printed 4m 26s
MMLU Pro 85.6% Not published Latency, as printed 17 s
LiveCodeBench (Vals AI) 83.9% Not published Latency, as printed 1m 04s
MMMU Pro (Vals AI) 80.4% Not published Latency, as printed 39 s
MATH 500 (Vals AI) 94.6% Not published Latency, as printed 17 s
47 more boards
What each board publishes about the runs behind OpenAI: o3's results, continued
MGSM (Vals AI) 91.8% Not published Latency, as printed 6.8 s
SAGE (Vals AI) 41.8% Not published Latency, as printed 48 s
LegalBench (Vals AI) 83.8% Not published Latency, as printed 6.0 s
CorpFin (Vals AI) 59.7% Not published Latency, as printed 19 s
TaxEval (Vals AI) 74.6% Not published Latency, as printed 24 s
MortgageTax (Vals AI) 65.7% Not published Latency, as printed 21 s
MedQA (Vals AI) 96.1% Not published Latency, as printed 8.5 s
MedCode (Vals AI) 47.3% Not published Latency, as printed 18 s
MedScribe (Vals AI) 76.7% Not published Latency, as printed 46 s
LMArena Text 1410 Elo Not published Votes 58,908 · Interval (±) ±3.6
LMArena Text: coding 1407 Elo Not published Votes 11,583 · Interval (±) ±6.2
LMArena Text: hard prompts 1402 Elo Not published Votes 25,530 · Interval (±) ±4.8
LMArena Text: math 1426 Elo Not published Votes 3,701 · Interval (±) ±9.9
LMArena Text: instruction following 1368 Elo Not published Votes 15,503 · Interval (±) ±5.5
LMArena Text: creative writing 1359 Elo Not published Votes 7,636 · Interval (±) ±7.3
LMArena Vision 1214 Elo Not published Votes 45,567 · Interval (±) ±6.5
LMArena Text: English 1416 Elo Not published Votes 27,283 · Interval (±) ±4.7
LMArena Text: non-English 1401 Elo Not published Votes 31,572 · Interval (±) ±4.5
LMArena Text: Chinese 1437 Elo Not published Votes 3,891 · Interval (±) ±9.9
LMArena Text: German 1420 Elo Not published Votes 1,508 · Interval (±) ±16.0
LMArena Text: Japanese 1404 Elo Not published Votes 1,419 · Interval (±) ±17.4
LMArena Text: Korean 1370 Elo Not published Votes 1,200 · Interval (±) ±18.2
LMArena Text: French 1430 Elo Not published Votes 826 · Interval (±) ±22.0
LMArena Text: Spanish 1395 Elo Not published Votes 1,221 · Interval (±) ±17.9
LMArena Text: Russian 1406 Elo Not published Votes 4,682 · Interval (±) ±8.7
LMArena Text: Polish 1438 Elo Not published Votes 3,834 · Interval (±) ±10.7
LMArena Text: multi-turn 1405 Elo Not published Votes 9,655 · Interval (±) ±6.8
LMArena Text: longer queries 1372 Elo Not published Votes 11,540 · Interval (±) ±6.1
LMArena Text: expert 1402 Elo Not published Votes 3,020 · Interval (±) ±11.2
LMArena Text: hard prompts in English 1411 Elo Not published Votes 12,107 · Interval (±) ±6.1
LMArena Text: software and IT 1415 Elo Not published Votes 19,145 · Interval (±) ±5.2
LMArena Text: mathematical work 1423 Elo Not published Votes 3,457 · Interval (±) ±10.3
LMArena Text: science 1429 Elo Not published Votes 9,925 · Interval (±) ±6.7
LMArena Text: medicine and healthcare 1447 Elo Not published Votes 3,325 · Interval (±) ±11.0
LMArena Text: legal and government 1428 Elo Not published Votes 3,745 · Interval (±) ±10.2
LMArena Text: business and finance 1393 Elo Not published Votes 9,485 · Interval (±) ±6.8
LMArena Text: writing and language 1371 Elo Not published Votes 13,240 · Interval (±) ±5.9
LMArena Text: entertainment and media 1373 Elo Not published Votes 10,508 · Interval (±) ±6.4
LMArena Vision: English 1221 Elo Not published Votes 21,609 · Interval (±) ±8.6
LMArena Vision: Chinese 1237 Elo Not published Votes 2,258 · Interval (±) ±16.3
LMArena Vision: reading text 1218 Elo Not published Votes 14,380 · Interval (±) ±8.2
LMArena Vision: diagrams 1220 Elo Not published Votes 3,574 · Interval (±) ±12.1
LMArena Vision: homework 1234 Elo Not published Votes 1,930 · Interval (±) ±14.8
LMArena Vision: humor 1222 Elo Not published Votes 1,643 · Interval (±) ±19.4
LMArena Vision: captioning 1210 Elo Not published Votes 540 · Interval (±) ±27.6
LMArena Vision: recognizing things 1234 Elo Not published Votes 494 · Interval (±) ±29.8
LMArena Vision: creative writing 1201 Elo Not published Votes 1,584 · Interval (±) ±18.1

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