Model comparison

Claude Opus 4.8 vs Qwen2.5 14B Instruct

Claude Opus 4.8 has enough public results to be ranked (#9); Qwen2.5 14B Instruct does not yet, so treat this comparison as directional.

Last verified . 0 shared benchmarks.

Claude Opus 4.8 Anthropic

60.7

Rank #9 Confirmed

Summary

  • The widest gap is in coding, where Claude Opus 4.8 leads 60.2 to 37.1.
  • Qwen2.5 14B Instruct is cheaper at $0.35 / $1.40 per million input/output tokens, against $5 / $25 for Claude Opus 4.8.
  • Claude Opus 4.8 accepts more context: 1M tokens versus 131K.
  • Qwen2.5 14B Instruct has downloadable open weights; the other is API-only.

Side by side

Claude Opus 4.8 and Qwen2.5 14B Instruct specifications
Claude Opus 4.8Qwen2.5 14B Instruct
ProviderAnthropicAlibaba (Qwen)
Noometry Index60.738.2
Released2026-05-282024-09
WeightsProprietaryOpen
Context window1M131K
Max output128K8K
Input $ / M tokens$5$0.35
Output $ / M tokens$25$1.40
Results tracked653

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Category by category

Coding Claude Opus 4.8 leads

Claude Opus 4.8: 60.2 (#9), Qwen2.5 14B Instruct: 37.1 (#187)

Coding benchmarks
BenchmarkClaude Opus 4.8Qwen2.5 14B Instruct
DeepSWE59%—
FrontierCode46.5%—
LMArena WebDev1556—
SciCode53.5%—
GSO47.1%—
WeirdML82.9%—
BigCodeBench Instruct—39.8%
LMArena Coding1491—
BigCodeBench Complete—52.2%
ALE-Bench1,564—

Agentic & Tool Use Not comparable

Claude Opus 4.8: 47.6 (#10), Qwen2.5 14B Instruct: —

Agentic & Tool Use benchmarks
BenchmarkClaude Opus 4.8Qwen2.5 14B Instruct
APEX-Agents48.9%—
OSWorld 2.020.6%—
Remote Labor Index8.3%—
τ²-bench Banking39.7%—
DeepResearch Bench50.2%—
PostTrainBench33.8%—
GBAEval70.9%—
GDP.pdf24%—
LMArena Search1204—
Vending-Bench 25,787—

Reasoning Not comparable

Claude Opus 4.8: 64.6 (#14), Qwen2.5 14B Instruct: —

Reasoning benchmarks
BenchmarkClaude Opus 4.8Qwen2.5 14B Instruct
ARC-AGI-272.1%—
SimpleBench64.8%—
Kagi LLM Benchmark88.8%—
NYT Connections (extended)91.1%—
ARC-AGI-192.5%—
CritPt20.9%—
Chess Puzzles34%—
EnigmaEval23.5%—
EBR-Bench28.6%—
LMArena Hard Prompts1481—
Mystery Game Puzzles36%—
DTBench94.9%—
LMCA57.5%—
Surface Evolver Bench87.5%—
Bench to the Future 30.14—
Epoch Capabilities Index158.3—
ForecastBench59.9—

Math Not comparable

Claude Opus 4.8: 78.2 (#11), Qwen2.5 14B Instruct: —

Math benchmarks
BenchmarkClaude Opus 4.8Qwen2.5 14B Instruct
FrontierMath (Tiers 1-3)80%—
FrontierMath Tier 456.1%—
MathArena Final-Answer Competitions91.8%—
OTIS Mock AIME 2024-202598.3%—
ProofBench69%—
LMArena Math1487—
FrontierMath (Feb 2025 set)47.2%—
FrontierMath Tier 4 (v1)31.3%—

Knowledge Not comparable

Claude Opus 4.8: 61.3 (#26), Qwen2.5 14B Instruct: —

Knowledge benchmarks
BenchmarkClaude Opus 4.8Qwen2.5 14B Instruct
GPQA Diamond91%—
SimpleQA Verified53%—
LMArena Expert1501—
MMLU—79.9%

Multimodal Not comparable

Claude Opus 4.8: 43.2 (#20), Qwen2.5 14B Instruct: —

Multimodal benchmarks
BenchmarkClaude Opus 4.8Qwen2.5 14B Instruct
LMArena Vision1295—
Blueprint-Bench 214.5%—
Furniture Assembly42.5%—
LMArena Document1475—

Multilingual Not comparable

Claude Opus 4.8: 55.4 (#31), Qwen2.5 14B Instruct: —

Multilingual benchmarks
BenchmarkClaude Opus 4.8Qwen2.5 14B Instruct
LMArena Non-English1450—
LMArena Chinese1509—
LMArena French1482—
LMArena German1470—
LMArena Japanese1440—
LMArena Korean1432—
LMArena Russian1476—
LMArena Spanish1470—

Instruction Following Not comparable

Claude Opus 4.8: 77.6 (#22), Qwen2.5 14B Instruct: —

Instruction Following benchmarks
BenchmarkClaude Opus 4.8Qwen2.5 14B Instruct
LMArena Instruction Following1476—

Long Context Not comparable

Claude Opus 4.8: 45.4 (#37), Qwen2.5 14B Instruct: —

Long Context benchmarks
BenchmarkClaude Opus 4.8Qwen2.5 14B Instruct
LMArena Longer Query1482—

Writing & Preference Not comparable

Claude Opus 4.8: 72.1 (#17), Qwen2.5 14B Instruct: —

Writing & Preference benchmarks
BenchmarkClaude Opus 4.8Qwen2.5 14B Instruct
LMArena Text1460—
LMArena Creative Writing1453—
EQ-Bench Creative Writing1840—
EQ-Bench 41281—
LMArena Multi-Turn1476—

Frequently asked questions

Is Claude Opus 4.8 better than Qwen2.5 14B Instruct?

Claude Opus 4.8 has enough public results to be ranked (#9); Qwen2.5 14B Instruct does not yet, so treat this comparison as directional.

Which is cheaper, Claude Opus 4.8 or Qwen2.5 14B Instruct?

Qwen2.5 14B Instruct is cheaper. It lists at $0.35 per million input tokens and $1.40 per million output tokens; Claude Opus 4.8 lists at $5 and $25.

Is Claude Opus 4.8 or Qwen2.5 14B Instruct better for coding?

Claude Opus 4.8 scores higher on coding benchmarks: 60.2 versus 37.1 in the Noometry coding category.

Which has the bigger context window?

Claude Opus 4.8 does, with 1M tokens against 131K.

How many benchmarks do Claude Opus 4.8 and Qwen2.5 14B Instruct share?

0 benchmarks have published results for both models. Claude Opus 4.8 has 65 scored results on Noometry and Qwen2.5 14B Instruct has 3.

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