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o3 Mini vs Qwen2.5 72B Instruct

Updated October 21, 2026. 42 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace o3 Mini Replace Qwen2.5 72B Instruct
o3 MiniOpenAI
Coding
No data
Overall
12.5
Output $/M
$4.40
41
Qwen2.5 72B InstructQwen
Coding
No data
Overall
7.7
Output $/M
$0.40
1
vs boards won of 42 shared

Decision reading

Neither model has a coding score yet, so the two cannot be ranked on coding.

o3 Mini has the edge where the context window is larger, 200K against 33K tokens, and where the benchmark that matters is τ²-Bench Telecom, where it leads.

Model Ao3 MiniOpenAINot benchmarkedNo coding benchmarkNo cost per solved taskModel BQwen2.5 72B InstructQwenNot benchmarkedNo coding benchmarkNo cost per solved task
Shared results
42
o3 Mini only
28
Qwen2.5 72B Instruct only
11
Like-for-like categories
7 of 9

Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.

Which one for your work

Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.

At a glance

Coding index
o3 Mini not benchmarked, Qwen2.5 72B Instruct not benchmarked.
Widest category
Math, 34.8 points apart on average over 4 shared benchmarks.
Widest single gap
OTIS Mock AIME: o3 Mini 76.9% against Qwen2.5 72B Instruct 8.1%, 68.9 points apart on a 0 to 100 scale.
Output price
o3 Mini $4.40 against Qwen2.5 72B Instruct $0.40 per million output tokens, 11.0x apart.
Context window
o3 Mini takes 200K tokens, Qwen2.5 72B Instruct 33K.

Benchmark by benchmark

First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.

Boards won, where both have a result
Categoryo3 MiniBarsQwen2.5 72B InstructTies
Coding50
Intelligence20
Agentic work01
Reasoning60
Math40
Knowledge50
General190
All shared boards411
CodingLike-for-likeSix of these boards feed the Vibe Coding Index50
Coding benchmarks for o3 Mini and Qwen2.5 72B Instruct
Benchmarko3 MiniQwen2.5 72B InstructLeader
Aider polyglot60.4%Not measuredOnly o3 Mini measured
SWE-bench Verified42.4%Not measuredOnly o3 Mini measured
SWE-bench Lite32.3%Not measuredOnly o3 Mini measured
LiveCodeBench (Vals AI)71.5%Not measuredOnly o3 Mini measured
LiveCodeBench (Artificial Analysis run)73.4%27.6%o3 Mini
SciCode42.8%Not measuredOnly o3 Mini measured
Terminal-Bench Hard (Artificial Analysis run)6.8%4.5%o3 Mini
GSO-Bench1.3%Not measuredOnly o3 Mini measured
WeirdML43.7%16.0%o3 Mini
Cybench22.5%Not measuredOnly o3 Mini measured
LMArena Text: coding13781292o3 Mini
LMArena Text: software and IT13641292o3 Mini
Neither model has a result on the other 26 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for o3 Mini and Qwen2.5 72B Instruct
Benchmarko3 MiniQwen2.5 72B InstructLeader
AA Intelligence Index12.57.7o3 Mini
Epoch Capabilities Index140.2129.0o3 Mini
Agentic workLike-for-likePublic boards, shown as published, kept out of the index01
Agentic work benchmarks for o3 Mini and Qwen2.5 72B Instruct
Benchmarko3 MiniQwen2.5 72B InstructLeader
τ²-Bench Telecom31.3%34.5%Qwen2.5 72B Instruct
METR time horizonsNot measured35.8%Only Qwen2.5 72B Instruct measured
BALROGNot measured16.2%Only Qwen2.5 72B Instruct measured
TheAgentCompanyNot measured5.7%Only Qwen2.5 72B Instruct measured
Neither model has a result on the other 35 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index60
Reasoning benchmarks for o3 Mini and Qwen2.5 72B Instruct
Benchmarko3 MiniQwen2.5 72B InstructLeader
GPQA Diamond75.5%Not measuredOnly o3 Mini measured
GPQA Diamond (Artificial Analysis run)77.3%49.1%o3 Mini
Humanity's Last Exam (Artificial Analysis run)12.0%3.6%o3 Mini
GPQA Diamond (Epoch AI run)77.0%49.1%o3 Mini
ARC-AGI34.5%Not measuredOnly o3 Mini measured
ARC-AGI-23.0%Not measuredOnly o3 Mini measured
SimpleBench22.8%Not measuredOnly o3 Mini measured
Chess puzzles15.0%Not measuredOnly o3 Mini measured
Mystery game puzzles7.0%Not measuredOnly o3 Mini measured
BIG-Bench HardNot measured79.8%Only Qwen2.5 72B Instruct measured
LMArena Text: hard prompts13651271o3 Mini
LMArena Text: expert13641245o3 Mini
LMArena Text: hard prompts in English13751279o3 Mini
Neither model has a result on the other 8 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index40
Math benchmarks for o3 Mini and Qwen2.5 72B Instruct
Benchmarko3 MiniQwen2.5 72B InstructLeader
AIME86.5%Not measuredOnly o3 Mini measured
MATH 500 (Vals AI)91.8%Not measuredOnly o3 Mini measured
MGSM (Vals AI)91.3%Not measuredOnly o3 Mini measured
AA Math IndexNot measured14.0Only Qwen2.5 72B Instruct measured
AIME 2025 (Artificial Analysis run)Not measured14.0%Only Qwen2.5 72B Instruct measured
OTIS Mock AIME76.9%8.1%o3 Mini
FrontierMath, tiers 1 to 318.6%Not measuredOnly o3 Mini measured
FrontierMath, tier 40.0%Not measuredOnly o3 Mini measured
MATH level 596.5%63.2%o3 Mini
LMArena Text: math13961283o3 Mini
LMArena Text: mathematical work13991290o3 Mini
Neither model has a result on the other 2 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index50
Knowledge benchmarks for o3 Mini and Qwen2.5 72B Instruct
Benchmarko3 MiniQwen2.5 72B InstructLeader
MMLU Pro78.7%Not measuredOnly o3 Mini measured
LegalBench (Vals AI)71.5%Not measuredOnly o3 Mini measured
CorpFin (Vals AI)45.3%Not measuredOnly o3 Mini measured
TaxEval (Vals AI)69.4%Not measuredOnly o3 Mini measured
MedQA (Vals AI)94.8%Not measuredOnly o3 Mini measured
MMLU Pro (Artificial Analysis run)80.2%72.0%o3 Mini
SimpleQA Verified15.3%Not measuredOnly o3 Mini measured
MMLUNot measured85.3%Only Qwen2.5 72B Instruct measured
AI2 Reasoning ChallengeNot measured94.5%Only Qwen2.5 72B Instruct measured
LMArena Text: science13391275o3 Mini
LMArena Text: medicine and healthcare13301258o3 Mini
LMArena Text: legal and government13281288o3 Mini
LMArena Text: business and finance13131253o3 Mini
Neither model has a result on the other 4 boards here
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Web design benchmarks for o3 Mini and Qwen2.5 72B Instruct
Benchmarko3 MiniQwen2.5 72B InstructLeader
Neither model has a result on 9 boards here
GeneralLike-for-likePublic boards, shown as published, kept out of the index190
General benchmarks for o3 Mini and Qwen2.5 72B Instruct
Benchmarko3 MiniQwen2.5 72B InstructLeader
IFBench67.1%36.9%o3 Mini
Long context reasoning (AA-LCR)43.0%Not measuredOnly o3 Mini measured
DTBench68.8%62.9%o3 Mini
LMCA19.0%13.4%o3 Mini
Fiction.LiveBench50.0%Not measuredOnly o3 Mini measured
Creative writing (Lech Mazur)61.7%Not measuredOnly o3 Mini measured
HellaSwagNot measured84.8%Only Qwen2.5 72B Instruct measured
WinoGrandeNot measured82.3%Only Qwen2.5 72B Instruct measured
PIQANot measured82.6%Only Qwen2.5 72B Instruct measured
LMArena Text13371269o3 Mini
LMArena Text: instruction following13371254o3 Mini
LMArena Text: creative writing12861221o3 Mini
LMArena Text: English13511283o3 Mini
LMArena Text: non-English13191252o3 Mini
LMArena Text: Chinese13791273o3 Mini
LMArena Text: German13031234o3 Mini
LMArena Text: Japanese12861180o3 Mini
LMArena Text: Korean13131188o3 Mini
LMArena Text: French13341280o3 Mini
LMArena Text: Spanish13211255o3 Mini
LMArena Text: Russian13041264o3 Mini
LMArena Text: Polish1294Not measuredOnly o3 Mini measured
LMArena Text: multi-turn13201272o3 Mini
LMArena Text: longer queries13431281o3 Mini
LMArena Text: writing and language13131247o3 Mini
LMArena Text: entertainment and media12831211o3 Mini
Neither model has a result on the other 20 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for o3 Mini and Qwen2.5 72B Instruct
Benchmarko3 MiniQwen2.5 72B InstructLeader
Neither model has a result on 5 boards here

What each workload costs

Three fixed token mixes at each model's listed price, so per-token rates become a bill.

Chat turn

1K input + 500 output tokens

o3 Mini$0.0033Fits in one request
Qwen2.5 72B Instruct$0.0006Fits in one request

Qwen2.5 72B Instruct costs less

Repository review

50K input + 3K output tokens

o3 Mini$0.068Fits in one request
Qwen2.5 72B Instruct$0.019Exceeds the context window

Qwen2.5 72B Instruct costs less

Agent loop

200K input + 10K output tokens

o3 Mini$0.264Exceeds the context window
Qwen2.5 72B Instruct$0.076Exceeds the context window

Qwen2.5 72B Instruct costs less

Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.

Specification differences

The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.

Specifications of o3 Mini and Qwen2.5 72B Instruct
SpecificationOpenAI o3 MiniQwen2.5 72B Instruct
MakerOpenAIQwen
WeightsNo public weights listedOpen weights
ReleasedJanuary 31, 2025September 19, 2024
Context window200K33K
Input $/Mtok$1.10$0.36
Output $/Mtok$4.40$0.40
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it00
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is o3 Mini better than Qwen2.5 72B Instruct for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. o3 Mini has the edge where the context window is larger, 200K against 33K tokens, and where the benchmark that matters is τ²-Bench Telecom, where it leads.

Which is cheaper, o3 Mini or Qwen2.5 72B Instruct?

o3 Mini costs $1.10 per million input tokens and $4.40 per million output tokens; Qwen2.5 72B Instruct costs $0.36 and $0.40. Cost per solved task is known for neither of them.

Which has the bigger context window, o3 Mini or Qwen2.5 72B Instruct?

o3 Mini, with 200K tokens against 33K.

How many benchmarks is the o3 Mini vs Qwen2.5 72B Instruct comparison based on?

42 benchmarks have a result for both models as of October 21, 2026. o3 Mini's coding index rests on 0 independent benchmarks and Qwen2.5 72B Instruct's on 0. Where only one model has a result, the page says so instead of naming a winner.

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