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GPT-5.1-Codex-Mini vs Qwen3 Coder 480B A35B

GPT-5.1-Codex-Mini leads Qwen3 Coder 480B A35B on the Artificial Analysis Intelligence Index, 20.4 to 11.9, and Qwen3 Coder 480B A35B costs 1.3x less per output token ($1.50 vs $2.00 per million). Updated October 22, 2026; 19 benchmarks have a result for both.

Replace GPT-5.1-Codex-Mini Replace Qwen3 Coder 480B A35B
GPT-5.1-Codex-MiniOpenAI
Coding
No data
Overall
No data
Output $/M
$2.00
13
Qwen3 Coder 480B A35BQwen
Coding
No data
Overall
No data
Output $/M
$1.50
6
vs boards won of 19 shared

GPT-5.1-Codex-Mini or Qwen3 Coder 480B A35B: which to pick

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

Pick GPT-5.1-Codex-Mini for a larger context window (400K against 262K tokens) and work measured by LMArena WebDev or LMArena WebDev: HTML, where it leads.

Model AGPT-5.1-Codex-MiniOpenAINot benchmarked1 independent benchmarkNo cost per solved taskModel BQwen3 Coder 480B A35BQwenNot benchmarked1 independent benchmarkNo cost per solved task
Shared results
19
GPT-5.1-Codex-Mini only
3
Qwen3 Coder 480B A35B only
34
Like-for-like categories
8 of 9

Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.

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
GPT-5.1-Codex-Mini not benchmarked, Qwen3 Coder 480B A35B not benchmarked.
Widest category
Math, 52.4 points apart on average over 2 shared benchmarks.
Widest single gap
AA Math Index: GPT-5.1-Codex-Mini 91.7 against Qwen3 Coder 480B A35B 39.3, 52.4 points apart on a 0 to 100 scale.
Output price
GPT-5.1-Codex-Mini $2.00 against Qwen3 Coder 480B A35B $1.50 per million output tokens, 1.3x apart.
Context window
GPT-5.1-Codex-Mini takes 400K 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
CategoryGPT-5.1-Codex-MiniBarsQwen3 Coder 480B A35BTies
Coding32
Intelligence10
Agentic work10
Reasoning20
Math20
Knowledge10
Web design14
General20
All shared boards136
CodingLike-for-likeSix of these boards feed the Vibe Coding Index32
Coding benchmarks for GPT-5.1-Codex-Mini and Qwen3 Coder 480B A35B
BenchmarkGPT-5.1-Codex-MiniQwen3 Coder 480B A35BLeader
SWE-bench VerifiedNot measured69.6%Only Qwen3 Coder 480B A35B measured
LMArena WebDev12441275Qwen3 Coder 480B A35B
LiveCodeBench (Artificial Analysis run)83.6%58.5%GPT-5.1-Codex-Mini
Terminal-Bench Hard (Artificial Analysis run)33.3%18.9%GPT-5.1-Codex-Mini
Terminal-Bench61.6%27.2%GPT-5.1-Codex-Mini
GSO-BenchNot measured4.9%Only Qwen3 Coder 480B A35B measured
WeirdMLNot measured41.2%Only Qwen3 Coder 480B A35B measured
ALE-BenchNot measured461.4Only Qwen3 Coder 480B A35B measured
LMArena Text: codingNot measured1412Only Qwen3 Coder 480B A35B measured
LMArena Text: software and ITNot measured1393Only Qwen3 Coder 480B A35B measured
LMArena WebDev: ReactNot measured1257Only Qwen3 Coder 480B A35B measured
LMArena WebDev: HTML12531287Qwen3 Coder 480B A35B
Neither model has a result on the other 27 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
Intelligence benchmarks for GPT-5.1-Codex-Mini and Qwen3 Coder 480B A35B
BenchmarkGPT-5.1-Codex-MiniQwen3 Coder 480B A35BLeader
AA Intelligence Index20.411.9GPT-5.1-Codex-Mini
Neither model has a result on the other 1 board here
Agentic workLike-for-likePublic boards, shown as published, kept out of the index10
Agentic work benchmarks for GPT-5.1-Codex-Mini and Qwen3 Coder 480B A35B
BenchmarkGPT-5.1-Codex-MiniQwen3 Coder 480B A35BLeader
τ²-Bench Telecom62.9%43.6%GPT-5.1-Codex-Mini
Neither model has a result on the other 40 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index20
Reasoning benchmarks for GPT-5.1-Codex-Mini and Qwen3 Coder 480B A35B
BenchmarkGPT-5.1-Codex-MiniQwen3 Coder 480B A35BLeader
GPQA Diamond (Artificial Analysis run)81.3%61.8%GPT-5.1-Codex-Mini
Humanity's Last Exam (Artificial Analysis run)18.5%4.5%GPT-5.1-Codex-Mini
LMArena Text: hard promptsNot measured1372Only Qwen3 Coder 480B A35B measured
LMArena Text: expertNot measured1338Only Qwen3 Coder 480B A35B measured
LMArena Text: hard prompts in EnglishNot measured1380Only Qwen3 Coder 480B A35B measured
Kagi LLM BenchmarkNot measured49.5%Only Qwen3 Coder 480B A35B measured
Neither model has a result on the other 16 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index20
Math benchmarks for GPT-5.1-Codex-Mini and Qwen3 Coder 480B A35B
BenchmarkGPT-5.1-Codex-MiniQwen3 Coder 480B A35BLeader
AA Math Index91.739.3GPT-5.1-Codex-Mini
AIME 2025 (Artificial Analysis run)91.7%39.3%GPT-5.1-Codex-Mini
LMArena Text: mathNot measured1365Only Qwen3 Coder 480B A35B measured
LMArena Text: mathematical workNot measured1367Only Qwen3 Coder 480B A35B measured
Neither model has a result on the other 9 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index10
Knowledge benchmarks for GPT-5.1-Codex-Mini and Qwen3 Coder 480B A35B
BenchmarkGPT-5.1-Codex-MiniQwen3 Coder 480B A35BLeader
MMLU Pro (Artificial Analysis run)82.0%78.8%GPT-5.1-Codex-Mini
LMArena Text: scienceNot measured1347Only Qwen3 Coder 480B A35B measured
LMArena Text: medicine and healthcareNot measured1347Only Qwen3 Coder 480B A35B measured
LMArena Text: legal and governmentNot measured1358Only Qwen3 Coder 480B A35B measured
LMArena Text: business and financeNot measured1343Only Qwen3 Coder 480B A35B measured
Neither model has a result on the other 13 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index14
Web design benchmarks for GPT-5.1-Codex-Mini and Qwen3 Coder 480B A35B
BenchmarkGPT-5.1-Codex-MiniQwen3 Coder 480B A35BLeader
Design Arena: websites11111158Qwen3 Coder 480B A35B
Design Arena: UI components10781110Qwen3 Coder 480B A35B
Design Arena: game dev10921098Qwen3 Coder 480B A35B
Design Arena: data viz10971084GPT-5.1-Codex-Mini
Design Arena: 3D988Not measuredOnly GPT-5.1-Codex-Mini measured
Design Arena: all code categories10931142Qwen3 Coder 480B A35B
Design Arena: SVG978Not measuredOnly GPT-5.1-Codex-Mini measured
Design Arena: ASCII art1105Not measuredOnly GPT-5.1-Codex-Mini measured
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index20
General benchmarks for GPT-5.1-Codex-Mini and Qwen3 Coder 480B A35B
BenchmarkGPT-5.1-Codex-MiniQwen3 Coder 480B A35BLeader
IFBench67.9%40.5%GPT-5.1-Codex-Mini
Long context reasoning (AA-LCR)66.7%45.7%GPT-5.1-Codex-Mini
LMArena TextNot measured1357Only Qwen3 Coder 480B A35B measured
LMArena Text: instruction followingNot measured1355Only Qwen3 Coder 480B A35B measured
LMArena Text: creative writingNot measured1333Only Qwen3 Coder 480B A35B measured
LMArena Text: EnglishNot measured1359Only Qwen3 Coder 480B A35B measured
LMArena Text: non-EnglishNot measured1346Only Qwen3 Coder 480B A35B measured
LMArena Text: ChineseNot measured1357Only Qwen3 Coder 480B A35B measured
LMArena Text: GermanNot measured1325Only Qwen3 Coder 480B A35B measured
LMArena Text: JapaneseNot measured1311Only Qwen3 Coder 480B A35B measured
LMArena Text: KoreanNot measured1305Only Qwen3 Coder 480B A35B measured
LMArena Text: FrenchNot measured1398Only Qwen3 Coder 480B A35B measured
LMArena Text: SpanishNot measured1360Only Qwen3 Coder 480B A35B measured
LMArena Text: RussianNot measured1366Only Qwen3 Coder 480B A35B measured
LMArena Text: PolishNot measured1344Only Qwen3 Coder 480B A35B measured
LMArena Text: multi-turnNot measured1366Only Qwen3 Coder 480B A35B measured
LMArena Text: longer queriesNot measured1378Only Qwen3 Coder 480B A35B measured
LMArena Text: writing and languageNot measured1340Only Qwen3 Coder 480B A35B measured
LMArena Text: entertainment and mediaNot measured1317Only Qwen3 Coder 480B A35B measured
Neither model has a result on the other 27 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GPT-5.1-Codex-Mini and Qwen3 Coder 480B A35B
BenchmarkGPT-5.1-Codex-MiniQwen3 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

GPT-5.1-Codex-Mini$0.0013Fits in one request
Qwen3 Coder 480B A35B$0.0010Fits in one request

Qwen3 Coder 480B A35B costs less

Repository review

50K input + 3K output tokens

GPT-5.1-Codex-Mini$0.018Fits in one request
Qwen3 Coder 480B A35B$0.019Fits in one request

GPT-5.1-Codex-Mini costs less

Agent loop

200K input + 10K output tokens

GPT-5.1-Codex-Mini$0.070Fits in one request
Qwen3 Coder 480B A35B$0.075Fits in one request

GPT-5.1-Codex-Mini 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 GPT-5.1-Codex-Mini and Qwen3 Coder 480B A35B
SpecificationOpenAI GPT-5.1-Codex-MiniQwen3 Coder 480B A35B
MakerOpenAIQwen
WeightsNo public weights listedOpen weights
ReleasedNovember 13, 2025July 23, 2025
Context window400K262K
Input $/Mtok$0.25$0.30
Output $/Mtok$2.00$1.50
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it11
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-5.1-Codex-Mini better than Qwen3 Coder 480B A35B for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. Pick GPT-5.1-Codex-Mini for a larger context window (400K against 262K tokens) and work measured by LMArena WebDev or LMArena WebDev: HTML, where it leads.

Which is cheaper, GPT-5.1-Codex-Mini or Qwen3 Coder 480B A35B?

GPT-5.1-Codex-Mini costs $0.25 per million input tokens and $2.00 per million output tokens; Qwen3 Coder 480B A35B costs $0.30 and $1.50. Cost per solved task is known for neither of them.

Which has the bigger context window, GPT-5.1-Codex-Mini or Qwen3 Coder 480B A35B?

GPT-5.1-Codex-Mini, with 400K tokens against 262K.

How many benchmarks is the GPT-5.1-Codex-Mini vs Qwen3 Coder 480B A35B comparison based on?

19 benchmarks have a result for both models as of October 22, 2026. GPT-5.1-Codex-Mini's coding index rests on 1 independent benchmark and Qwen3 Coder 480B A35B's on 1. Where only one model has a result, the page says so instead of naming a winner.

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