Model comparison

Qwen2.5 72B Instruct vs Qwen3-Next 80B-A3B Instruct

Qwen3-Next 80B-A3B Instruct is the stronger model overall, scoring 43.0 to 31.9 on the Noometry Index.

Last verified . 22 shared benchmarks.

Summary

  • They share 22 benchmarks with published results for both. Qwen2.5 72B Instruct scores higher in 1 category and Qwen3-Next 80B-A3B Instruct in 7 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where Qwen3-Next 80B-A3B Instruct leads 38.8 to 19.3.
  • The biggest single-benchmark swing is GPQA (HELM): 42.6% for Qwen2.5 72B Instruct and 63% for Qwen3-Next 80B-A3B Instruct.
  • Qwen3-Next 80B-A3B Instruct is cheaper at $0.50 / $2 per million input/output tokens, against $1.40 / $5.60 for Qwen2.5 72B Instruct.

Side by side

Qwen2.5 72B Instruct and Qwen3-Next 80B-A3B Instruct specifications
Qwen2.5 72B InstructQwen3-Next 80B-A3B Instruct
ProviderAlibaba (Qwen)Alibaba (Qwen)
Noometry Index31.943.0
Released2024-092025-09
WeightsOpenOpen
Context window131K131K
Max output8K33K
Input $ / M tokens$1.40$0.50
Output $ / M tokens$5.60$2
Results tracked4325

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Category by category

Coding Qwen3-Next 80B-A3B Instruct leads

Qwen2.5 72B Instruct: 33.2 (#260), Qwen3-Next 80B-A3B Instruct: 42.5 (#98)

Coding benchmarks
BenchmarkQwen2.5 72B InstructQwen3-Next 80B-A3B Instruct
LMArena Coding12921440
WeirdML16%—
BigCodeBench Instruct45.8%—
BigCodeBench Complete55.9%—

Agentic & Tool Use Not comparable

Qwen2.5 72B Instruct: 22.1 (#133), Qwen3-Next 80B-A3B Instruct: —

Agentic & Tool Use benchmarks
BenchmarkQwen2.5 72B InstructQwen3-Next 80B-A3B Instruct
TheAgentCompany5.7%—
BALROG16.2%—
METR Time Horizons35.8%—

Reasoning Qwen3-Next 80B-A3B Instruct leads

Qwen2.5 72B Instruct: 22.3 (#199), Qwen3-Next 80B-A3B Instruct: 31.1 (#81)

Reasoning benchmarks
BenchmarkQwen2.5 72B InstructQwen3-Next 80B-A3B Instruct
LMArena Hard Prompts12711428
Kagi LLM Benchmark—66.7%
DTBench62.9%—
LMCA13.4%—
BIG-Bench Hard79.8%—
Epoch Capabilities Index129—
ForecastBench57.5—
HellaSwag84.8%—
PIQA82.6%—
WinoGrande82.3%—

Math Qwen3-Next 80B-A3B Instruct leads

Qwen2.5 72B Instruct: 19.3 (#287), Qwen3-Next 80B-A3B Instruct: 38.8 (#126)

Math benchmarks
BenchmarkQwen2.5 72B InstructQwen3-Next 80B-A3B Instruct
Omni-MATH33%46.7%
LMArena Math12831440
OTIS Mock AIME 2024-20258.1%—
MATH Level 563.2%—

Knowledge Qwen3-Next 80B-A3B Instruct leads

Qwen2.5 72B Instruct: 27.0 (#253), Qwen3-Next 80B-A3B Instruct: 41.8 (#106)

Knowledge benchmarks
BenchmarkQwen2.5 72B InstructQwen3-Next 80B-A3B Instruct
MMLU-Pro63.1%78.6%
GPQA (HELM)42.6%63%
LMArena Expert12451417
GPQA Diamond49.1%—
Confabulations19.1%—
Vectara Hallucination Rate—9.3%
ARC (AI2) Challenge94.5%—
MMLU85.3%—
TriviaQA71.9%—

Multilingual Qwen3-Next 80B-A3B Instruct leads

Qwen2.5 72B Instruct: 41.0 (#213), Qwen3-Next 80B-A3B Instruct: 52.1 (#93)

Multilingual benchmarks
BenchmarkQwen2.5 72B InstructQwen3-Next 80B-A3B Instruct
LMArena Non-English12521407
LMArena Chinese12721460
LMArena French12801413
LMArena German12341417
LMArena Japanese11801395
LMArena Korean11881364
LMArena Russian12641404
LMArena Spanish12561435

Instruction Following Qwen3-Next 80B-A3B Instruct leads

Qwen2.5 72B Instruct: 65.5 (#221), Qwen3-Next 80B-A3B Instruct: 70.8 (#159)

Instruction Following benchmarks
BenchmarkQwen2.5 72B InstructQwen3-Next 80B-A3B Instruct
IFEval80.6%81%
LMArena Instruction Following12541389

Long Context Qwen2.5 72B Instruct leads

Qwen2.5 72B Instruct: 38.9 (#188), Qwen3-Next 80B-A3B Instruct: 37.0 (#223)

Long Context benchmarks
BenchmarkQwen2.5 72B InstructQwen3-Next 80B-A3B Instruct
LMArena Longer Query12821403
Fiction.LiveBench—55.6%

Writing & Preference Qwen3-Next 80B-A3B Instruct leads

Qwen2.5 72B Instruct: 46.7 (#215), Qwen3-Next 80B-A3B Instruct: 58.0 (#121)

Writing & Preference benchmarks
BenchmarkQwen2.5 72B InstructQwen3-Next 80B-A3B Instruct
LMArena Text12691417
LMArena Creative Writing12211334
WildBench80.2%80.7%
LMArena Multi-Turn12721416

Frequently asked questions

Is Qwen2.5 72B Instruct better than Qwen3-Next 80B-A3B Instruct?

Qwen3-Next 80B-A3B Instruct is the stronger model overall, scoring 43.0 to 31.9 on the Noometry Index.

Which is cheaper, Qwen2.5 72B Instruct or Qwen3-Next 80B-A3B Instruct?

Qwen3-Next 80B-A3B Instruct is cheaper. It lists at $0.50 per million input tokens and $2 per million output tokens; Qwen2.5 72B Instruct lists at $1.40 and $5.60.

Is Qwen2.5 72B Instruct or Qwen3-Next 80B-A3B Instruct better for coding?

Qwen3-Next 80B-A3B Instruct scores higher on coding benchmarks: 42.5 versus 33.2 in the Noometry coding category.

Which has the bigger context window?

Both accept 131K tokens.

How many benchmarks do Qwen2.5 72B Instruct and Qwen3-Next 80B-A3B Instruct share?

22 benchmarks have published results for both models. Qwen2.5 72B Instruct has 43 scored results on Noometry and Qwen3-Next 80B-A3B Instruct has 25.

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