GPT-5.1-Codex-Max 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-5.1-Codex-Max· Holo3-35B-A3B

Quick Verdict

Pick GPT-5.1-Codex-Max if you want the stronger benchmark profile. Holo3-35B-A3B only becomes the better choice if you want the cheaper token bill or you would rather avoid the extra latency and token burn of a reasoning model.

GPT-5.1-Codex-Max has the cleaner overall profile here, landing at 81 versus 78. It is a real lead, but still close enough that category-level strengths matter more than the headline number.

GPT-5.1-Codex-Max's sharpest advantage is in agentic, where it averages 86 against 77.8. The single biggest benchmark swing on the page is OSWorld-Verified, 82% to 77.8%.

GPT-5.1-Codex-Max is also the more expensive model on tokens at $2.00 input / $8.00 output per 1M tokens, versus $0.25 input / $1.80 output per 1M tokens for Holo3-35B-A3B. That is roughly 4.4x on output cost alone. GPT-5.1-Codex-Max is the reasoning model in the pair, while Holo3-35B-A3B is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. GPT-5.1-Codex-Max gives you the larger context window at 400K, compared with 64K for Holo3-35B-A3B.

Operational tradeoffs

Price$2.00 / $8.00$0.25 / $1.80
SpeedN/AN/A
TTFTN/AN/A
Context400K64K

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-5.1-Codex-MaxHolo3-35B-A3B
AgenticGPT-5.1-Codex-Max wins
Terminal-Bench 2.090%
BrowseComp85%
OSWorld-Verified82%77.8%
Coding
HumanEval94%
SWE-bench Verified77.9%
LiveCodeBench67%
SWE-bench Pro84%
Multimodal & Grounded
MMMU-Pro85%
OfficeQA Pro92%
Reasoning
MuSR92%
BBH92%
LongBench v290%
MRCRv293%
Knowledge
MMLU98%
GPQA96%
SuperGPQA94%
MMLU-Pro82%
HLE27%
FrontierScience84%
SimpleQA94%
Instruction Following
IFEval91%
Multilingual
MGSM89%
MMLU-ProX87%
Mathematics
AIME 202399%
AIME 202499%
AIME 202598%
HMMT Feb 202395%
HMMT Feb 202497%
HMMT Feb 202596%
BRUMO 202596%
MATH-50093%
Frequently Asked Questions (2)

Which is better, GPT-5.1-Codex-Max or Holo3-35B-A3B?

GPT-5.1-Codex-Max is ahead overall, 81 to 78. The biggest single separator in this matchup is OSWorld-Verified, where the scores are 82% and 77.8%.

Which is better for agentic tasks, GPT-5.1-Codex-Max or Holo3-35B-A3B?

GPT-5.1-Codex-Max has the edge for agentic tasks in this comparison, averaging 86 versus 77.8. Inside this category, OSWorld-Verified is the benchmark that creates the most daylight between them.

Last updated: March 31, 2026

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