Model comparison

DeepSeek V4.1 Flash vs Qwen3-Coder 480B-A35B Instruct

DeepSeek V4.1 Flash is the stronger model overall, scoring 52.8 to 38.1 on the Noometry Index.

Last verified October 11, 2026. 19 shared benchmarks.

DeepSeek V4.1 Flash

DeepSeek

52.8

Rank #38 Confirmed

Qwen3-Coder 480B-A35B Instruct

Alibaba (Qwen)

38.1

Rank #190 Confirmed

Summary

They share 19 benchmarks with published results for both. DeepSeek V4.1 Flash scores higher in 9 categories and Qwen3-Coder 480B-A35B Instruct in 0 categories; 9 gaps are clear of the uncertainty.
The widest gap is in math, where DeepSeek V4.1 Flash leads 66.7 to 37.6.
DeepSeek V4.1 Flash is cheaper at $0.15 / $0.60 per million input/output tokens, against $1.50 / $7.50 for Qwen3-Coder 480B-A35B Instruct.
DeepSeek V4.1 Flash accepts more context: 1M tokens versus 262K.

Side by side

DeepSeek V4.1 Flash and Qwen3-Coder 480B-A35B Instruct specifications
	DeepSeek V4.1 Flash	Qwen3-Coder 480B-A35B Instruct
Provider	DeepSeek	Alibaba (Qwen)
Noometry Index	52.8	38.1
Released	2026-09-09	2025-04
Weights	Open	Open
Context window	1M	262K
Max output	393K	66K
Input $ / M tokens	$0.15	$1.50
Output $ / M tokens	$0.60	$7.50
Results tracked	37	25

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Category by category

Coding DeepSeek V4.1 Flash leads

DeepSeek V4.1 Flash: 52.9 (#32), Qwen3-Coder 480B-A35B Instruct: 35.5 (#223)

Coding benchmarks
Benchmark	DeepSeek V4.1 Flash	Qwen3-Coder 480B-A35B Instruct
LMArena WebDev	1619	1275
LMArena Coding	1506	1412
ALE-Bench	1,092	461.45
SWE-bench Verified (bash only)	—	55.4%
SciCode	51.9%	—
GSO	—	4.9%
WeirdML	—	41.2%
AlgoTune	—	1.44

Agentic & Tool Use DeepSeek V4.1 Flash leads

DeepSeek V4.1 Flash: 31.2 (#69), Qwen3-Coder 480B-A35B Instruct: 23.9 (#123)

Agentic & Tool Use benchmarks
Benchmark	DeepSeek V4.1 Flash	Qwen3-Coder 480B-A35B Instruct
Terminal-Bench	—	27.2%
APEX-Agents	39.5%	—
GDP.pdf	19.8%	—

Reasoning DeepSeek V4.1 Flash leads

DeepSeek V4.1 Flash: 50.2 (#36), Qwen3-Coder 480B-A35B Instruct: 25.5 (#149)

Reasoning benchmarks
Benchmark	DeepSeek V4.1 Flash	Qwen3-Coder 480B-A35B Instruct
LMArena Hard Prompts	1483	1372
Kagi LLM Benchmark	—	49.5%
NYT Connections (extended)	89.6%	—
CritPt	14.3%	—
Mystery Game Puzzles	43%	—
DTBench	89.9%	—
LMCA	47%	—
Surface Evolver Bench	46.3%	—
Epoch Capabilities Index	154.9	—

Math DeepSeek V4.1 Flash leads

DeepSeek V4.1 Flash: 66.7 (#25), Qwen3-Coder 480B-A35B Instruct: 37.6 (#150)

Math benchmarks
Benchmark	DeepSeek V4.1 Flash	Qwen3-Coder 480B-A35B Instruct
LMArena Math	1477	1365
FrontierMath (Tiers 1-3)	67.4%	—
FrontierMath Tier 4	26.8%	—
OTIS Mock AIME 2024-2025	98.3%	—
ProofBench	54%	—

Knowledge DeepSeek V4.1 Flash leads

DeepSeek V4.1 Flash: 57.9 (#38), Qwen3-Coder 480B-A35B Instruct: 37.0 (#162)

Knowledge benchmarks
Benchmark	DeepSeek V4.1 Flash	Qwen3-Coder 480B-A35B Instruct
LMArena Expert	1506	1338
GPQA Diamond	89.8%	—

Multimodal Not comparable

DeepSeek V4.1 Flash: 39.1 (#61), Qwen3-Coder 480B-A35B Instruct: —

Multimodal benchmarks
Benchmark	DeepSeek V4.1 Flash	Qwen3-Coder 480B-A35B Instruct
LMArena Vision	1277	—
Furniture Assembly	34.2%	—

Multilingual DeepSeek V4.1 Flash leads

DeepSeek V4.1 Flash: 55.0 (#35), Qwen3-Coder 480B-A35B Instruct: 47.7 (#148)

Multilingual benchmarks
Benchmark	DeepSeek V4.1 Flash	Qwen3-Coder 480B-A35B Instruct
LMArena Non-English	1448	1346
LMArena Chinese	1497	1357
LMArena French	1452	1398
LMArena German	1484	1325
LMArena Japanese	1412	1310
LMArena Korean	1452	1305
LMArena Russian	1471	1366
LMArena Spanish	1459	1360

Instruction Following DeepSeek V4.1 Flash leads

DeepSeek V4.1 Flash: 77.3 (#26), Qwen3-Coder 480B-A35B Instruct: 71.6 (#147)

Instruction Following benchmarks
Benchmark	DeepSeek V4.1 Flash	Qwen3-Coder 480B-A35B Instruct
LMArena Instruction Following	1474	1355

Long Context DeepSeek V4.1 Flash leads

DeepSeek V4.1 Flash: 45.2 (#47), Qwen3-Coder 480B-A35B Instruct: 42.0 (#131)

Long Context benchmarks
Benchmark	DeepSeek V4.1 Flash	Qwen3-Coder 480B-A35B Instruct
LMArena Longer Query	1475	1378

Writing & Preference DeepSeek V4.1 Flash leads

DeepSeek V4.1 Flash: 65.4 (#48), Qwen3-Coder 480B-A35B Instruct: 55.3 (#147)

Writing & Preference benchmarks
Benchmark	DeepSeek V4.1 Flash	Qwen3-Coder 480B-A35B Instruct
LMArena Text	1462	1357
LMArena Creative Writing	1435	1333
LMArena Multi-Turn	1457	1365
EQ-Bench Creative Writing	1540	—

Frequently asked questions

Is DeepSeek V4.1 Flash better than Qwen3-Coder 480B-A35B Instruct?

DeepSeek V4.1 Flash is the stronger model overall, scoring 52.8 to 38.1 on the Noometry Index.

Which is cheaper, DeepSeek V4.1 Flash or Qwen3-Coder 480B-A35B Instruct?

DeepSeek V4.1 Flash is cheaper. It lists at $0.15 per million input tokens and $0.60 per million output tokens; Qwen3-Coder 480B-A35B Instruct lists at $1.50 and $7.50.

Is DeepSeek V4.1 Flash or Qwen3-Coder 480B-A35B Instruct better for coding?

DeepSeek V4.1 Flash scores higher on coding benchmarks: 52.9 versus 35.5 in the Noometry coding category.

Which has the bigger context window?

DeepSeek V4.1 Flash does, with 1M tokens against 262K.

How many benchmarks do DeepSeek V4.1 Flash and Qwen3-Coder 480B-A35B Instruct share?

19 benchmarks have published results for both models. DeepSeek V4.1 Flash has 37 scored results on Noometry and Qwen3-Coder 480B-A35B Instruct has 25.