Yi-1.5-34B-Chat

01-ai

Parameters

34.4B

Downloads

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Likes

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Avg score

33.4

6 benchmarks

Weights

Open

Released

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About

Yi-1.5-34B-Chat is a 34.4B-parameter open-weights model in the Yi family from 01-ai. Benchmarked on 6 evals, averaging 33.4.

apache-2.0

Benchmark scores · 6

avg 33.4 — higher is better

IFEvalOpen LLM LB · 2026-05

60.7

BIG-Bench HardOpen LLM LB · 2026-05

44.3

MMLU-ProOpen LLM LB · 2026-05

39.1

MATH Lvl 5Open LLM LB · 2026-05

27.7

GPQA DiamondOpen LLM LB · 2026-05

15.3

MuSROpen LLM LB · 2026-05

13.1

Details

Publisher01-ai

FamilyYi

Parameters34.4B

Licenseapache-2.0

WeightsOpen

Released—

History

Capability over time

Append-only ledger — every observed change to this model's numbers.