Nanbeige4.1-3B
Nanbeige4.1-3B is a Nanbeige open-weights reasoning model, released 11 Feb 2026. Its best configuration ranks #649 of 785 on the BenchLeader Index at 40.9 ±5.1, in the lower half. The ± is the point: 290 other configurations score within that range, so they and this one cannot be told apart on quality alone — price and speed are what separate them. It scores highest in knowledge (42) and lowest in long context (23). Last measured 11 Feb 2026.stale: no new result in six months
- Blended price
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- Output speed
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- First answer
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- Context
- 256k
- Full answer
- –
- Cost per run
- –
- Released
- 11 Feb 2026
- Overall index41
- Reasoning41
- Agents & tools34
- Knowledge42
- Instruction following39
- Long context23
- Composite39
How its index has moved
9 Sept 2026 to 21 Oct 2026The index is recomputed from scratch every day, so a line moves when a new benchmark result lands, when a publisher revises a score, or when the models it is normalised against change. Early movement usually means the score is still settling.
Benchmark results
See all LLM benchmarks. One column per reasoning effort. Rank is among every configuration of every model on that benchmark. Hover a score for the run it came from.
Reasoning
| Benchmark | not stated | Source |
|---|---|---|
| GPQA Diamond (AA)not in index | 85.0%#130 | Artificial Analysis |
| Humanity's Last Exam (AA)not in index | 10.9%#307 | Artificial Analysis |
| CritPt | 0.0%#315 | Artificial Analysis |
Coding
| Benchmark | not stated | Source |
|---|---|---|
| Terminal-Bench 2.1 (AA)not in index | 1.1%#224 | Artificial Analysis |
Agents & tools
| Benchmark | not stated | Source |
|---|---|---|
| Terminal-Bench Hard | 0.0%#362 | Artificial Analysis |
| τ²-Bench Telecom (AA)not in index | 21.6%#319 | Artificial Analysis |
| GDPval-AA v2.1not in index | 0.0%#124 | Artificial Analysis |
Knowledge
| Benchmark | not stated | Source |
|---|---|---|
| AA-Omniscience | -42.5#334 | Artificial Analysis |
| AA-Omniscience: accuracynot in index | 9.9%#496 | Artificial Analysis |
| AA-Omniscience: non-hallucinationnot in index | 41.9%#151 | Artificial Analysis |
Instruction following
| Benchmark | not stated | Source |
|---|---|---|
| IFBench | 35.4%#309 | Artificial Analysis |
Long context
| Benchmark | not stated | Source |
|---|---|---|
| AA-LCR | 0.0%#493 | Artificial Analysis |
Composite
| Benchmark | not stated | Source |
|---|---|---|
| AA Intelligence Index v4.3.2 | 8.4#436 | Artificial Analysis |
See also
Questions people ask
- What are Nanbeige4.1-3B's benchmark scores?
- As of 25 Oct 2026, Nanbeige4.1-3B scores 40.9 ±5.1 on the BenchLeader Index, strongest in knowledge (42) and weakest in long context (23). That rests on 6 independent benchmark results, and every score on this page links to its publisher.
- How does Nanbeige4.1-3B rank?
- Nanbeige4.1-3B is #649 of 785 ranked configurations on 25 Oct 2026. 290 other configurations score within its margin, so the exact position matters less than the band. The leader is Claude Opus 5.5 (max effort) at 72.6.
- When was Nanbeige4.1-3B released?
- Nanbeige released Nanbeige4.1-3B on 11 Feb 2026.
Data as of 25 Oct 2026. Compare with another model.
Cite as: BenchLeader, “Nanbeige4.1-3B: benchmarks, pricing, speed and rank”, data as of 25 Oct 2026, https://www.benchleader.com/models/nanbeige4-1-3b.