Model comparison
1-bit Bonsai 4B vs LFM2.5-8B-A1B
Head-to-head evidence from 0 shared benchmark results across 0 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
BenchAlign evidence: 1-bit Bonsai 4B not scored; LFM2.5-8B-A1B estimated. Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. 1-bit Bonsai 4B and LFM2.5-8B-A1B share 0 comparable benchmark results. 0 of 8 categories are comparable. 0 results are unique to 1-bit Bonsai 4B; 18 to LFM2.5-8B-A1B.
Updated July 16, 2026- Shared results
- 0
- 1-bit Bonsai 4B only
- 0
- LFM2.5-8B-A1B only
- 18
- Comparable categories
- 0 / 8
Benchmark data for 1-bit Bonsai 4B and LFM2.5-8B-A1B is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 0 shared benchmark results across 0 evidence categories; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
BenchLM does not have sourced benchmark coverage for 1-bit Bonsai 4B yet. This comparison is currently limited to metadata such as context window, reasoning mode, and pricing where available.
LFM2.5-8B-A1B has the larger context window at 128K, compared with 32K for 1-bit Bonsai 4B.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | 1-bit Bonsai 4B | LFM2.5-8B-A1B | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | 1-bit Bonsai 4B$0 input / $0 output | LFM2.5-8B-A1B$0 input / $0 output | Listed prices are equal. |
| Generation speedtokens per second | 1-bit Bonsai 4BNot available | LFM2.5-8B-A1BNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | 1-bit Bonsai 4BNot available | LFM2.5-8B-A1BNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | 1-bit Bonsai 4B32K | LFM2.5-8B-A1B128K | LFM2.5-8B-A1B lists the larger context window. |
Benchmark Deep Dive
Agentic2 benchmarks
Coding2 benchmarks
Reasoning2 benchmarks
Knowledge6 benchmarks
| Benchmark | 1-bit Bonsai 4B | LFM2.5-8B-A1B | Result |
|---|---|---|---|
| AA-GPQA DiamondSource | — | 51.3% | Not comparable |
| AA-HLESource | — | 6.9% | Not comparable |
| AA-Omniscience IndexSource | — | -33.3% | Not comparable |
| AA-Omniscience AccuracySource | — | 9.4% | Not comparable |
| AA-Omniscience Hallucination RateSource | — | 47.0% | Not comparable |
| Artificial Analysis Intelligence IndexSource | — | 8.3% | Not comparable |
Math3 benchmarks
Frequently Asked Questions (3)
Can I compare 1-bit Bonsai 4B and LFM2.5-8B-A1B on BenchLM yet?
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
Why does this comparison show “coming soon”?
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
What data is available for 1-bit Bonsai 4B and LFM2.5-8B-A1B today?
1-bit Bonsai 4B: $0.00 input / $0.00 output per 1M tokens LFM2.5-8B-A1B: $0.00 input / $0.00 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
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