1-bit Bonsai 8B vs GPT-4o mini

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· GPT-4o mini

Quick Verdict

Pick GPT-4o mini if you want the stronger benchmark profile. 1-bit Bonsai 8B only becomes the better choice if reasoning is the priority or you want the cheaper token bill.

GPT-4o mini is clearly ahead on the aggregate, 55 to 50. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

GPT-4o mini's sharpest advantage is in knowledge, where it averages 62 against 30. 1-bit Bonsai 8B does hit back in reasoning, so the answer changes if that is the part of the workload you care about most.

GPT-4o mini is also the more expensive model on tokens at $0.15 input / $0.60 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. GPT-4o mini gives you the larger context window at 128K, compared with 64K for 1-bit Bonsai 8B.

Operational tradeoffs

PriceFree*$0.15 / $0.60
SpeedN/A33 t/s
TTFTN/A3.16s
Context64K128K

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 8BGPT-4o mini
Agentic
Terminal-Bench 2.058%
BrowseComp49%
OSWorld-Verified44%
Coding
HumanEval87.2%
SWE-bench Pro65%
Multimodal & Grounded
MMMU-Pro66%
OfficeQA Pro53%
Reasoning1-bit Bonsai 8B wins
MuSR50%
LongBench v249%
MRCRv250%
KnowledgeGPT-4o mini wins
GPQA30%
MMLU82%
FrontierScience62%
Instruction Following
IFEval79.8%
Multilingual
MGSM87%
MMLU-ProX68%
Mathematics
MATH-50066%
Frequently Asked Questions (3)

Which is better, 1-bit Bonsai 8B or GPT-4o mini?

GPT-4o mini is ahead overall, 55 to 50.

Which is better for knowledge tasks, 1-bit Bonsai 8B or GPT-4o mini?

GPT-4o mini has the edge for knowledge tasks in this comparison, averaging 62 versus 30. 1-bit Bonsai 8B stays close enough that the answer can still flip depending on your workload.

Which is better for reasoning, 1-bit Bonsai 8B or GPT-4o mini?

1-bit Bonsai 8B has the edge for reasoning in this comparison, averaging 50 versus 49.5. GPT-4o mini stays close enough that the answer can still flip depending on your workload.

Last updated: March 31, 2026

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