1-bit Bonsai 8B vs Claude Opus 4.6

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

Agentic
Coding
Multimodal & Grounded
Reasoning
Knowledge
Instruction Following
Multilingual
Mathematics

1-bit Bonsai 8B· Claude Opus 4.6

Quick Verdict

Pick Claude Opus 4.6 if you want the stronger benchmark profile. 1-bit Bonsai 8B only becomes the better choice if you want the cheaper token bill.

Claude Opus 4.6 is clearly ahead on the aggregate, 84 to 50. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Claude Opus 4.6's sharpest advantage is in knowledge, where it averages 77.8 against 30. The single biggest benchmark swing on the page is GPQA, 30% to 91.3%.

Claude Opus 4.6 is also the more expensive model on tokens at $15.00 input / $75.00 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for 1-bit Bonsai 8B. That is roughly Infinityx on output cost alone. Claude Opus 4.6 gives you the larger context window at 1M, compared with 64K for 1-bit Bonsai 8B.

Operational tradeoffs

PriceFree*$15.00 / $75.00
SpeedN/A40 t/s
TTFTN/A1.78s
Context64K1M

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.

Benchmark1-bit Bonsai 8BClaude Opus 4.6
Agentic
Terminal-Bench 2.065.4%
BrowseComp84%
Coding
SWE-bench Verified80.8%
LiveCodeBench76%
FLTEval39.6%
SWE-Rebench65.3%
React Native Evals84.4%
Multimodal & Grounded
MMMU-Pro77.3%
OfficeQA Pro94%
ReasoningClaude Opus 4.6 wins
MuSR50%93%
BBH94%
LongBench v292%
MRCRv276%
ARC-AGI-268.8%
KnowledgeClaude Opus 4.6 wins
GPQA30%91.3%
MMLU99%
SuperGPQA95%
MMLU-Pro82%
HLE53%
FrontierScience88%
SimpleQA72%
Instruction Following
IFEval79.8%
Multilingual
MGSM96%
MathematicsClaude Opus 4.6 wins
MATH-50066%98%
AIME 202399%
AIME 202499%
AIME 202598%
HMMT Feb 202395%
HMMT Feb 202497%
HMMT Feb 202596%
BRUMO 202596%
Frequently Asked Questions (4)

Which is better, 1-bit Bonsai 8B or Claude Opus 4.6?

Claude Opus 4.6 is ahead overall, 84 to 50. The biggest single separator in this matchup is GPQA, where the scores are 30% and 91.3%.

Which is better for knowledge tasks, 1-bit Bonsai 8B or Claude Opus 4.6?

Claude Opus 4.6 has the edge for knowledge tasks in this comparison, averaging 77.8 versus 30. Inside this category, GPQA is the benchmark that creates the most daylight between them.

Which is better for math, 1-bit Bonsai 8B or Claude Opus 4.6?

Claude Opus 4.6 has the edge for math in this comparison, averaging 97.3 versus 66. Inside this category, MATH-500 is the benchmark that creates the most daylight between them.

Which is better for reasoning, 1-bit Bonsai 8B or Claude Opus 4.6?

Claude Opus 4.6 has the edge for reasoning in this comparison, averaging 82.4 versus 50. Inside this category, MuSR is the benchmark that creates the most daylight between them.

Last updated: March 31, 2026

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