Model comparison
Hy3 Preview vs LFM2.5-8B-A1B
Head-to-head evidence from 10 shared benchmark results across 4 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
BenchAlign evidence: Hy3 Preview not scored; LFM2.5-8B-A1B estimated. Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Hy3 Preview and LFM2.5-8B-A1B share 10 comparable benchmark results. 1 of 8 categories are comparable. 12 results are unique to Hy3 Preview; 8 to LFM2.5-8B-A1B.
Updated July 16, 2026- Shared results
- 10
- Hy3 Preview only
- 12
- LFM2.5-8B-A1B only
- 8
- Comparable categories
- 1 / 8
Pick Hy3 Preview if you want the stronger benchmark profile. LFM2.5-8B-A1B only becomes the better choice if instruction following is the priority.
Confidence note. This is a partial-evidence comparison with 10 shared benchmark results across 4 evidence categories; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
Hy3 Preview is clearly ahead on the provisional aggregate, 53 to 37. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Hy3 Preview gives you the larger context window at 256K, compared with 128K for LFM2.5-8B-A1B.
Category breakdown
Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.
| Category | Hy3 Preview | Δ | LFM2.5-8B-A1B |
|---|---|---|---|
| Inst. Following | Hy3 Preview63.1 | Margin→ 5.7 | LFM2.5-8B-A1B68.8 |
| Agentic | Hy3 Preview54.4 | MarginNo overlap | LFM2.5-8B-A1BNot measured |
| Coding | Hy3 Preview57.8 | MarginNo overlap | LFM2.5-8B-A1BNot measured |
| Knowledge | Hy3 Preview33.8 | MarginNo overlap | LFM2.5-8B-A1BNot measured |
| Math | Hy3 PreviewNot measured | MarginNo overlap | LFM2.5-8B-A1B50.0 |
Decisive benchmark drivers
The largest measured benchmark gaps in this matchup, with exact reported values.
More
- Source ↗
IFBench
Inst. FollowingA 63.1%B 56.5%Winner: Hy3 PreviewΔ 6.6IFBench: Hy3 Preview scored 63.1%; LFM2.5-8B-A1B scored 56.5%. Hy3 Preview wins this benchmark.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Hy3 Preview | LFM2.5-8B-A1B | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Hy3 Preview$0 input / $0 output | LFM2.5-8B-A1B$0 input / $0 output | Listed prices are equal. |
| Generation speedtokens per second | Hy3 PreviewNot available | LFM2.5-8B-A1BNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Hy3 PreviewNot available | LFM2.5-8B-A1BNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Hy3 Preview256K | LFM2.5-8B-A1B128K | Hy3 Preview lists the larger context window. |
Benchmark Deep Dive
Agentic7 benchmarks
| Benchmark | Hy3 Preview | LFM2.5-8B-A1B | Result |
|---|---|---|---|
| Terminal-Bench 2.0Source | 54.4% | — | Not comparable |
| Gert LabsSource | 36.91% | — | Not comparable |
| AA Agentic IndexSource | 30.7% | — | Not comparable |
| GDPval-AASource | 35.7% | — | Not comparable |
| GDPval-AASource | 1214 | — | Not comparable |
| BFCL v4Source | — | 49.7% | Not comparable |
| τ²-bench resultsSource | — | 16.1% | Not comparable |
Coding6 benchmarks
Reasoning2 benchmarks
Knowledge9 benchmarks
| Benchmark | Hy3 Preview | LFM2.5-8B-A1B | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 41.2% | 8.3% | Hy3 Preview leads |
| GPQASource | 87.2% | — | Not comparable |
| GPQA-DSource | 87.2% | — | Not comparable |
| HLESource | 25.5% | — | Not comparable |
| AA-Omniscience AccuracySource | 31.5% | 9.4% | Hy3 Preview leads |
| AA-Omniscience Hallucination RateSource | 73.0% | 47.0% | LFM2.5-8B-A1B leads |
| AA-GPQA DiamondSource | 89.7% | 51.3% | Hy3 Preview leads |
| AA-HLESource | 31.6% | 6.9% | Hy3 Preview leads |
| AA-Omniscience IndexSource | -18.5% | -33.3% | Hy3 Preview leads |
Math3 benchmarks
Frequently Asked Questions (2)
Which is better, Hy3 Preview or LFM2.5-8B-A1B?
Hy3 Preview is ahead on BenchLM's provisional leaderboard, 53 to 37. The biggest single separator in this matchup is IFBench, where the scores are 63.1% and 56.5%.
Which is better for instruction following, Hy3 Preview or LFM2.5-8B-A1B?
LFM2.5-8B-A1B has the edge for instruction following in this comparison, averaging 68.8 versus 63.1. Inside this category, IFBench is the benchmark that creates the most daylight between them.
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