BenchLeader

Yi-34B

Yi-34B is a 01.AI proprietary model, released 2 Nov 2023. Its best configuration ranks #767 of 785 on the BenchLeader Index at 35.0 ±4.8, in the lower half. The ± is the point: 129 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 human preference (31) and lowest in reasoning (20). Last measured 22 Oct 2026.

Blended price
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Output speed
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First answer
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Context
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Full answer
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Cost per run
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Released
2 Nov 2023
How it scores by categoryDashed line = average model (50). One step of 15 = one standard deviation.
  1. Overall index35
  2. Reasoning20
  3. Coding30
  4. Maths29
  5. Human preference31

Versions

01.AI has shipped 2 models under this name. Each is ranked on its own results; a newer version often has fewer results so far, which holds its index nearer the average until more arrive.

ModelReleasedIndexRank
Yi-1.5-34B13 May 202439.2#694
Yi-34Bthis page2 Nov 202335.0#767

How its index has moved

8 Sept 2026 to 19 Oct 2026
303541

The 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

Coding

Benchmarknot statedSourceTrend
Arena Coding1206#324Arena (LMArena)

Maths

Benchmarknot statedSourceTrend
MATH Level 55.2%#93Epoch AI Benchmarking Hub
Arena Maths1151#321Arena (LMArena)
GSM8Knot in index76.0%#20Epoch AI Benchmarking Hub

Knowledge

Benchmarknot statedSourceTrend
MMLUnot in index76.3%#34Epoch AI Benchmarking Hub

Instruction following

Benchmarknot statedSourceTrend
Arena Instruction Followingnot in index1152#325Arena (LMArena)

Human preference

Benchmarknot statedSourceTrend
Arena Text1184#317Arena (LMArena)
Arena Creative Writingnot in index1154#314Arena (LMArena)
Arena Multi-turnnot in index1162#312Arena (LMArena)
Arena Longer Queriesnot in index1173#320Arena (LMArena)

Composite

Benchmarknot statedSourceTrend
Epoch Capabilities Indexnot in index117.3#185Epoch AI Benchmarking Hub

More from 01.AI

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See also

Questions people ask

What are Yi-34B's benchmark scores?
As of 25 Oct 2026, Yi-34B scores 35.0 ±4.8 on the BenchLeader Index, strongest in human preference (31) and weakest in reasoning (20). That rests on 6 independent benchmark results, and every score on this page links to its publisher.
How does Yi-34B rank?
Yi-34B is #767 of 785 ranked configurations on 25 Oct 2026. 129 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 Yi-34B released?
01.AI released Yi-34B on 2 Nov 2023.

Data as of 25 Oct 2026. Compare with another model.

Cite as: BenchLeader, “Yi-34B: benchmarks, pricing, speed and rank”, data as of 25 Oct 2026, https://www.benchleader.com/models/yi-34b.