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o3 vs Qwen3 Coder 480B A35B

Updated October 21, 2026. 48 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace o3 Replace Qwen3 Coder 480B A35B
o3OpenAI
Coding
70.7
Overall
20.2
Output $/M
$8.00
41
Qwen3 Coder 480B A35BQwen
Coding
50.0
Overall
11.9
Output $/M
$1.00
7
vs boards won of 48 shared

Decision reading

Pick o3 for coding: it scores 70.7 on the Vibe Coding Index against 50.0 for Qwen3 Coder 480B A35B.

Pick Qwen3 Coder 480B A35B when output tokens cost 8.0x less, or when the context window is larger, 262K against 200K tokens.

Model Ao3OpenAI70.7/1002 independent benchmarks$0.571 per solved taskModel BQwen3 Coder 480B A35BQwen50.0/1002 independent benchmarksNo cost per solved task
Shared results
48
o3 only
49
Qwen3 Coder 480B A35B only
4
Like-for-like categories
8 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 70.7 from 2 benchmarks, Qwen3 Coder 480B A35B 50.0 from 2 benchmarks.
Widest category
Agentic work, 37.1 points apart on average over 1 shared benchmark.
Widest single gap
AA Math Index: o3 88.3 against Qwen3 Coder 480B A35B 39.3, 49.0 points apart on a 0 to 100 scale.
Output price
o3 $8.00 against Qwen3 Coder 480B A35B $1.00 per million output tokens, 8.0x apart.
Context window
o3 takes 200K tokens, Qwen3 Coder 480B A35B 262K.

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
Categoryo3BarsQwen3 Coder 480B A35BTies
Coding62
Intelligence10
Agentic work10
Reasoning50
Math40
Knowledge50
Web design14
General181
All shared boards417
CodingLike-for-likeFour of these boards feed the Vibe Coding Index62
Coding benchmarks for o3 and Qwen3 Coder 480B A35B
Benchmarko3Qwen3 Coder 480B A35BLeader
Aider polyglot81.3%Not measuredOnly o3 measured
SWE-bench Verified58.4%69.6%Qwen3 Coder 480B A35B
SWE-bench Multimodal36.0%Not measuredOnly o3 measured
LMArena WebDevNot measured1275Only Qwen3 Coder 480B A35B measured
LiveCodeBench (Vals AI)83.9%Not measuredOnly o3 measured
LiveCodeBench (Artificial Analysis run)80.8%58.5%o3
Terminal-Bench Hard (Artificial Analysis run)37.1%18.9%o3
Terminal-BenchNot measured27.2%Only Qwen3 Coder 480B A35B measured
GSO-Bench8.8%4.9%o3
WeirdML52.4%41.2%o3
ALE-Bench933.5461.4o3
LMArena Text: coding14071412Qwen3 Coder 480B A35B
LMArena Text: software and IT14151393o3
LMArena WebDev: ReactNot measured1257Only Qwen3 Coder 480B A35B measured
LMArena WebDev: HTMLNot measured1287Only Qwen3 Coder 480B A35B measured
Neither model has a result on the other 23 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
Intelligence benchmarks for o3 and Qwen3 Coder 480B A35B
Benchmarko3Qwen3 Coder 480B A35BLeader
AA Intelligence Index20.211.9o3
Epoch Capabilities Index146.7Not measuredOnly o3 measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index10
Agentic work benchmarks for o3 and Qwen3 Coder 480B A35B
Benchmarko3Qwen3 Coder 480B A35BLeader
τ²-Bench Telecom80.7%43.6%o3
METR time horizons65.4%Not measuredOnly o3 measured
GDPval30.8%Not measuredOnly o3 measured
DeepResearch Bench45.2%Not measuredOnly o3 measured
OSWorld23.0%Not measuredOnly o3 measured
Neither model has a result on the other 34 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index50
Reasoning benchmarks for o3 and Qwen3 Coder 480B A35B
Benchmarko3Qwen3 Coder 480B A35BLeader
GPQA Diamond84.1%Not measuredOnly o3 measured
MMMU Pro (Vals AI)80.4%Not measuredOnly o3 measured
GPQA Diamond (Artificial Analysis run)82.7%61.8%o3
Humanity's Last Exam (Artificial Analysis run)20.1%4.5%o3
GPQA Diamond (Epoch AI run)81.8%Not measuredOnly o3 measured
ARC-AGI60.8%Not measuredOnly o3 measured
ARC-AGI-26.5%Not measuredOnly o3 measured
SimpleBench53.1%Not measuredOnly o3 measured
Chess puzzles37.0%Not measuredOnly o3 measured
Mystery game puzzles29.0%Not measuredOnly o3 measured
VPCT52.0%Not measuredOnly o3 measured
LMArena Text: hard prompts14021372o3
LMArena Text: expert14021338o3
LMArena Text: hard prompts in English14111380o3
LMArena Vision: diagrams1220Not measuredOnly o3 measured
LMArena Vision: homework1234Not measuredOnly o3 measured
Neither model has a result on the other 5 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index40
Math benchmarks for o3 and Qwen3 Coder 480B A35B
Benchmarko3Qwen3 Coder 480B A35BLeader
AIME85.3%Not measuredOnly o3 measured
MATH 500 (Vals AI)94.6%Not measuredOnly o3 measured
MGSM (Vals AI)91.8%Not measuredOnly o3 measured
AA Math Index88.339.3o3
AIME 2025 (Artificial Analysis run)88.3%39.3%o3
OTIS Mock AIME84.4%Not measuredOnly o3 measured
FrontierMath, tiers 1 to 333.3%Not measuredOnly o3 measured
MATH level 597.8%Not measuredOnly o3 measured
LMArena Text: math14261365o3
LMArena Text: mathematical work14231367o3
Neither model has a result on the other 3 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index50
Knowledge benchmarks for o3 and Qwen3 Coder 480B A35B
Benchmarko3Qwen3 Coder 480B A35BLeader
MMLU Pro85.6%Not measuredOnly o3 measured
LegalBench (Vals AI)83.8%Not measuredOnly o3 measured
CorpFin (Vals AI)59.7%Not measuredOnly o3 measured
TaxEval (Vals AI)74.6%Not measuredOnly o3 measured
MortgageTax (Vals AI)65.7%Not measuredOnly o3 measured
MedQA (Vals AI)96.1%Not measuredOnly o3 measured
MedCode (Vals AI)47.3%Not measuredOnly o3 measured
MMLU Pro (Artificial Analysis run)85.3%78.8%o3
SimpleQA Verified49.4%Not measuredOnly o3 measured
GeoBench74.0%Not measuredOnly o3 measured
LMArena Text: science14291347o3
LMArena Text: medicine and healthcare14481347o3
LMArena Text: legal and government14281358o3
LMArena Text: business and finance13931343o3
Neither model has a result on the other 3 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index14
Web design benchmarks for o3 and Qwen3 Coder 480B A35B
Benchmarko3Qwen3 Coder 480B A35BLeader
Design Arena: websites10361159Qwen3 Coder 480B A35B
Design Arena: UI components10161112Qwen3 Coder 480B A35B
Design Arena: game dev10341099Qwen3 Coder 480B A35B
Design Arena: data viz12001084o3
Design Arena: all code categories10211143Qwen3 Coder 480B A35B
Neither model has a result on the other 4 boards here
GeneralLike-for-likePublic boards, shown as published, kept out of the index181
General benchmarks for o3 and Qwen3 Coder 480B A35B
Benchmarko3Qwen3 Coder 480B A35BLeader
SAGE (Vals AI)41.8%Not measuredOnly o3 measured
MedScribe (Vals AI)76.7%Not measuredOnly o3 measured
IFBench71.4%40.5%o3
Long context reasoning (AA-LCR)74.7%45.7%o3
DTBench84.8%Not measuredOnly o3 measured
LMCA39.7%Not measuredOnly o3 measured
Fiction.LiveBench88.9%Not measuredOnly o3 measured
Creative writing (Lech Mazur)83.9%Not measuredOnly o3 measured
CL-bench17.8%Not measuredOnly o3 measured
LMArena Text14101357o3
LMArena Text: instruction following13681355o3
LMArena Text: creative writing13591333o3
LMArena Vision1214Not measuredOnly o3 measured
LMArena Text: English14171359o3
LMArena Text: non-English14011346o3
LMArena Text: Chinese14371357o3
LMArena Text: German14201325o3
LMArena Text: Japanese14031311o3
LMArena Text: Korean13701305o3
LMArena Text: French14301398o3
LMArena Text: Spanish13951360o3
LMArena Text: Russian14061366o3
LMArena Text: Polish14381344o3
LMArena Text: multi-turn14051366o3
LMArena Text: longer queries13721378Qwen3 Coder 480B A35B
LMArena Text: writing and language13721340o3
LMArena Text: entertainment and media13731317o3
LMArena Vision: English1221Not measuredOnly o3 measured
LMArena Vision: Chinese1237Not measuredOnly o3 measured
LMArena Vision: reading text1218Not measuredOnly o3 measured
LMArena Vision: humor1222Not measuredOnly o3 measured
LMArena Vision: captioning1210Not measuredOnly o3 measured
LMArena Vision: recognizing things1234Not measuredOnly o3 measured
LMArena Vision: creative writing1201Not measuredOnly o3 measured
Neither model has a result on the other 12 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for o3 and Qwen3 Coder 480B A35B
Benchmarko3Qwen3 Coder 480B A35BLeader
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$0.0060Fits in one request
Qwen3 Coder 480B A35B$0.0008Fits in one request

Qwen3 Coder 480B A35B costs less

Repository review

50K input + 3K output tokens

o3$0.124Fits in one request
Qwen3 Coder 480B A35B$0.018Fits in one request

Qwen3 Coder 480B A35B costs less

Agent loop

200K input + 10K output tokens

o3$0.480Exceeds the context window
Qwen3 Coder 480B A35B$0.070Fits in one request

Qwen3 Coder 480B A35B 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 and Qwen3 Coder 480B A35B
SpecificationOpenAI o3Qwen3 Coder 480B A35B
MakerOpenAIQwen
WeightsNo public weights listedOpen weights
ReleasedApril 16, 2025July 23, 2025
Context window200K262K
Input $/Mtok$2.00$0.30
Output $/Mtok$8.00$1.00
Coding index70.750.0
Independent measurements behind it22
Cost per solved task$0.571Not computable
SourceOpenRouter listingOpenRouter listing

Questions

Is o3 better than Qwen3 Coder 480B A35B for coding?

Pick o3 for coding: it scores 70.7 on the Vibe Coding Index against 50.0 for Qwen3 Coder 480B A35B. Pick Qwen3 Coder 480B A35B when output tokens cost 8.0x less, or when the context window is larger, 262K against 200K tokens.

Which is cheaper, o3 or Qwen3 Coder 480B A35B?

o3 costs $2.00 per million input tokens and $8.00 per million output tokens; Qwen3 Coder 480B A35B costs $0.30 and $1.00. Cost per solved task is known for o3 only.

Which has the bigger context window, o3 or Qwen3 Coder 480B A35B?

Qwen3 Coder 480B A35B, with 262K tokens against 200K.

How many benchmarks is the o3 vs Qwen3 Coder 480B A35B comparison based on?

48 benchmarks have a result for both models as of October 21, 2026. o3's coding index rests on 2 independent benchmarks and Qwen3 Coder 480B A35B's on 2. Where only one model has a result, the page says so instead of naming a winner.

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