gpt-oss-120bvsQwen3.6

gpt-oss-120b
Qwen3.6
Specifications
Parameters
117B
35B
Context window
128k
256k
Benchmarks
Nonsense detection
BullshitBench v2
11%
Agentic coding
SWE-Bench Pro
49.5%
Coding
SWE-Bench Verified
62.4%
73.4%Best
Multilingual coding
SWE-Bench Multilingual
67.2%
Agentic terminal coding
Terminal-Bench 2.0
51.5%
Multidisciplinary reasoning
Humanity's Last Exam · no tools
14.9%
21.4%Best
Multidisciplinary reasoning
Humanity's Last Exam · with tools
19%
Science
GPQA Diamond
80.1%
86%Best
General knowledge
MMLU
90%
Chart reasoning
CharXiv Reasoning
78%
Multimodal reasoning
MMMU-Pro
75.3%
Multimodal
MMMU
81.7%
Overview
CompanyOpenAIQwen
Release dateAug 5 2025Apr 16 2026
AccessOpen WeightOpen Weight

Which is better: gpt-oss-120b or Qwen3.6?

Qwen3.6 leads gpt-oss-120b on 3 of the 3 benchmarks they both report (SWE-Bench Verified, Humanity's Last Exam, GPQA Diamond). gpt-oss-120b shipped 254 days before Qwen3.6, so benchmark comparisons should account for the intervening progress.

gpt-oss-120b has 117B parameters, while Qwen3.6 has 35B. Context windows are 128k (gpt-oss-120b) vs 256k (Qwen3.6).

On SWE-Bench Verified, Qwen3.6 leads at 73.4% vs gpt-oss-120b at 62.4%. On Humanity's Last Exam · no tools, Qwen3.6 leads at 21.4% vs gpt-oss-120b at 14.9%. On GPQA Diamond, Qwen3.6 leads at 86% vs gpt-oss-120b at 80.1%.

Frequently asked questions

gpt-oss-120b was released by OpenAI on Aug 5 2025.

Qwen3.6 was released by Qwen on Apr 16 2026.

Qwen3.6 leads on SWE-Bench Verified — gpt-oss-120b 62.4% vs Qwen3.6 73.4%.

Qwen3.6 leads on Humanity's Last Exam · no tools — gpt-oss-120b 14.9% vs Qwen3.6 21.4%.

gpt-oss-120b has a 128k context window; Qwen3.6 has 256k.

Other comparisons