GPT-OSS 120B vs Holo3-35B-A3B

Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.

Agentic
Coding
Multimodal & Grounded
Reasoning
Knowledge
Instruction Following
Multilingual
Mathematics

GPT-OSS 120B· Holo3-35B-A3B

Quick Verdict

Pick Holo3-35B-A3B if you want the stronger benchmark profile. GPT-OSS 120B only becomes the better choice if you want the cheaper token bill or you need the larger 128K context window.

Holo3-35B-A3B is clearly ahead on the aggregate, 78 to 51. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Holo3-35B-A3B's sharpest advantage is in agentic, where it averages 77.8 against 44.8. The single biggest benchmark swing on the page is OSWorld-Verified, 43% to 77.8%.

Holo3-35B-A3B is also the more expensive model on tokens at $0.25 input / $1.80 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for GPT-OSS 120B. That is roughly Infinityx on output cost alone. GPT-OSS 120B gives you the larger context window at 128K, compared with 64K for Holo3-35B-A3B.

Operational tradeoffs

PriceFree*$0.25 / $1.80
Speed262 t/sN/A
TTFT0.79sN/A
Context128K64K

Decision framing

BenchLM keeps the benchmark table and the operator tradeoffs on the same page so a better score does not hide a materially slower, pricier, or smaller-context model.

Runtime metrics show N/A when BenchLM does not have a sourced snapshot for that exact model. The scoring rules and freshness policy are documented on the methodology page.

BenchmarkGPT-OSS 120BHolo3-35B-A3B
AgenticHolo3-35B-A3B wins
Terminal-Bench 2.043%
BrowseComp50%
OSWorld-Verified43%77.8%
Coding
HumanEval43%
SWE-bench Verified29%
LiveCodeBench25%
SWE-bench Pro31%
SWE-Rebench33.3%
React Native Evals66.4%
Multimodal & Grounded
MMMU-Pro42%
OfficeQA Pro57%
Reasoning
MuSR47%
BBH73%
LongBench v258%
MRCRv259%
Knowledge
MMLU90%
GPQA80.9%
SuperGPQA48%
MMLU-Pro90%
HLE5%
FrontierScience49%
SimpleQA49%
Instruction Following
IFEval79%
Multilingual
MGSM72%
MMLU-ProX70%
Mathematics
AIME 202351%
AIME 202453%
AIME 202552%
HMMT Feb 202347%
HMMT Feb 202449%
HMMT Feb 202548%
BRUMO 202550%
MATH-50071%
Frequently Asked Questions (2)

Which is better, GPT-OSS 120B or Holo3-35B-A3B?

Holo3-35B-A3B is ahead overall, 78 to 51. The biggest single separator in this matchup is OSWorld-Verified, where the scores are 43% and 77.8%.

Which is better for agentic tasks, GPT-OSS 120B or Holo3-35B-A3B?

Holo3-35B-A3B has the edge for agentic tasks in this comparison, averaging 77.8 versus 44.8. Inside this category, OSWorld-Verified is the benchmark that creates the most daylight between them.

Last updated: March 31, 2026

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