Model comparison
Grok 3 [Beta] 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.
Public leaderboard positions: Grok 3 [Beta] #171 (Supported); LFM2.5-8B-A1B #166 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Grok 3 [Beta] and LFM2.5-8B-A1B share 0 comparable benchmark results. 1 of 8 categories are comparable. 2 results are unique to Grok 3 [Beta]; 17 to LFM2.5-8B-A1B.
Updated July 21, 2026- Shared results
- 0
- Grok 3 [Beta] only
- 2
- LFM2.5-8B-A1B only
- 17
- Comparable categories
- 1 / 8
Pick LFM2.5-8B-A1B if you want the stronger benchmark profile. Grok 3 [Beta] only becomes the better choice if you would rather avoid the extra latency and token burn of a reasoning model.
Confidence note. This is a partial-evidence comparison with 0 shared benchmark results across 0 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
LFM2.5-8B-A1B has the cleaner BenchAlign overall profile here, landing at 41.42 versus 40.43. It is a real lead, but still close enough that category-level strengths matter more than the headline number.
LFM2.5-8B-A1B's sharpest advantage is in mathematics, where it averages 50 against 2.8.
LFM2.5-8B-A1B is the reasoning model in the pair, while Grok 3 [Beta] 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.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Grok 3 [Beta] | LFM2.5-8B-A1B | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Grok 3 [Beta]Not available | LFM2.5-8B-A1B$0 input / $0 output | A complete price comparison is not available. |
| Generation speedtokens per second | Grok 3 [Beta]Not available | LFM2.5-8B-A1BNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Grok 3 [Beta]Not available | LFM2.5-8B-A1BNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Grok 3 [Beta]128K | LFM2.5-8B-A1B128K | Listed context windows are equal. |
Benchmark Deep Dive
Agentic2 benchmarks
Coding1 benchmarks
| Benchmark | Grok 3 [Beta] | LFM2.5-8B-A1B | Result |
|---|---|---|---|
| AA-SciCodeSource | — | 7.8% | Not comparable |
Reasoning2 benchmarks
Knowledge6 benchmarks
| Benchmark | Grok 3 [Beta] | 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 |
MathLFM2.5-8B-A1B wins5 benchmarks
Frequently Asked Questions (2)
Which is better, Grok 3 [Beta] or LFM2.5-8B-A1B?
LFM2.5-8B-A1B is ahead on BenchLM's BenchAlign leaderboard, 41.42 to 40.43.
Which is better for math, Grok 3 [Beta] or LFM2.5-8B-A1B?
LFM2.5-8B-A1B has the edge for math in this comparison, averaging 50 versus 2.8. Grok 3 [Beta] stays close enough that the answer can still flip depending on your workload.
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