Model
Model explorer

Yi-1.5 9B

OPEN
01.AI · Yi-1.5 family · released May 13, 2024

Popular mid-size Yi-1.5 variant, continually pretrained on 3.6T tokens; top performer among similarly sized open models at launch.

ReasoningCodingVisionFunction callingTool useAgentic
396.1
Elo · rank #333
Parameters
9B
Active params
9B (dense)
Context
4K tokens
Architecture
Dense Llama-style decoder-only transformer
License
Apache 2.0
Languages
—
API price (in/out)
No hosted API
Modalities
text
Benchmark results
Bar shows position within the tracked field; marker = field best
AGIEvalReasoning62.7%#7
best: OLMo 3-Think 32B · 88.2%
AlpacaEvalHuman preference22.9%#35
best: Tülu 2+DPO 70B · 95.1%
ARC-ChallengeReasoning61.5%#85
best: Llama 3.1 405B · 96.9%
Arena-HardHuman preference34.4%#49
best: Qwen3-235B-A22B (Non-Thinking) · 96.1%
BIG-Bench HardReasoning51.4%#97
best: ERNIE 4.5 300B-A47B · 94.3%
CMMLUKnowledge74.8%#17
best: Doubao-1.5-Pro · 90.9%
GPQA DiamondReasoning37.9%#229
best: GPT-5.6 · 94.6%
GSM8KMath73.7%#96
best: Llama 3.1 405B · 96.8%
HumanEval+Coding34.1%#34
best: Mistral Small 3.2 (24B) · 92.9%
HumanEvalCoding41.4%#136
best: Claude Opus 4.5 · 99.4%
IFEvalReasoning29.4%#143
best: Gemma 4 26B A4B · 98.5%
MATH-500Math11.4%#191
best: GPT-5 · 99.4%
MBPP+Coding53.6%#33
best: Llama 3.1 405B · 88.6%
MBPPCoding61.1%#57
best: Llama-3.3-Nemotron-Super-49B v1 (Reasoning On) · 91.3%
MMLU-ProKnowledge39.2%#154
best: Claude Fable 5 · 91.5%
MMLUKnowledge69.5%#148
best: OpenAI o3 · 92.9%
MT-BenchHuman preference8.2#42
best: Hunyuan-Large (A52B) · 9.4
Run it locally
VRAM @ Q4
6 GB
VRAM @ FP16
18 GB
Fits on (Q4)
RTX 3060 12GBRTX 4070 Ti 16GBRTX 3090 24GBRTX 4090 24GBRTX 5090 32GBM4 Pro 48GBM3 Max 128GBM3 Ultra 512GBA100 80GBH100 80GBH200 141GBB200 192GB
Throughput data unavailable.
Quantizations
GGUF Q4
Yi-1.5 family
Elo progression across releases
Yi-1.5 34BMay 2024530.7Yi-1.5 9BMay 2024396.1
Resources
HF01-ai/Yi-1.5-9BGH01-ai/Yi-1.5
API price weights · each benchmark row carries its own source badge (see methodology)