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LLM Alignment Evaluation on AlpacaEval 2.0 (test)

30.35LC Win RateOTPO
2.66529.852617.0424.2274May 18, 2025Jun 30, 2025Aug 12, 2025Sep 24, 2025Nov 6, 2025Dec 19, 2025Feb 1, 2026

Evaluation results

MethodLinks
OTPOBackbone=Mistral-7B-Instruct-v0.2, Training Dataset=HelpSteer22025.0530.3528.21,839
OTPOImplicit Token Weighting=true2025.0529.6429.541,991
BCOImplicit Token Weighting=false2025.0529.2328.761,955
IPOBase Model=Qwen-2-Instruct-7B2025.0529.0325.68411
RSOImplicit Token Weighting=false2025.0528.9328.81,961
R-DPOImplicit Token Weighting=false2025.0528.6628.341,940
CDPOImplicit Token Weighting=false2025.0528.6228.521,954
AOTImplicit Token Weighting=false2025.0528.5527.831,924
LDDPOImplicit Token Weighting=true2025.0528.5528.541,956
SPPOImplicit Token Weighting=false2025.0528.4828.131,946
LR-DPOImplicit Token Weighting=false2025.0528.2322.531,654
SGDPOBase Model=Llama-3.1-Instruct-8B2025.0528.2228.96444
LDDPOBackbone=Mistral-7B-Instruct-v0.2, Training Dataset=HelpSteer22025.0528.2225.841,815
BCOBase Model=Llama-3.1-Instruct-8B2025.0528.0329.32435
DPOImplicit Token Weighting=false2025.0527.9127.451,945
NCAImplicit Token Weighting=false2025.0527.7227.821,951
DPOBase Model=Llama-3.1-Instruct-8B2025.0527.5328.35438
SamPOBase Model=Llama-3.1-Instruct-8B2025.0527.4527.69443
RPOImplicit Token Weighting=false2025.0527.4327.411,963
SamPOBackbone=Mistral-7B-Instruct-v0.2, Training Dataset=HelpSteer22025.0527.3125.311,844
DPOBackbone=Mistral-7B-Instruct-v0.2, Training Dataset=HelpSteer22025.0527.2524.781,775
EXOImplicit Token Weighting=false2025.0527.2226.821,937
IPOBase Model=Llama-3.1-Instruct-8B2025.0527.0725.82459
SamPOImplicit Token Weighting=true2025.0526.9527.161,991
SFTBase Model=Llama-3.1-Instruct-8B2025.0526.8427.77459
SimPOImplicit Token Weighting=true2025.0526.7727.251,984
NCABase Model=Llama-3.1-Instruct-8B2025.0526.3327.77441
IPOImplicit Token Weighting=false2025.0525.0226.062,021
SamPOBase Model=Qwen-2-Instruct-7B2025.0524.5726.6426
DPOBase Model=Qwen-2-Instruct-7B2025.0524.2624.5414
SGDPOBase Model=Qwen-2-Instruct-7B2025.0523.8924.86419
BCOBase Model=Qwen-2-Instruct-7B2025.0523.7623.95411
SimPOBackbone=Mistral-7B-Instruct-v0.2, Training Dataset=HelpSteer22025.0523.56221,906
InitialImplicit Token Weighting=false2025.0522.9222.571,899
NCABase Model=Qwen-2-Instruct-7B2025.0521.9421.75409
SFTBase Model=Qwen-2-Instruct-7B2025.0520.9822.2418
OTPOBackbone=Qwen-2.5-3B-Instruct, Training Dataset=HelpSteer22025.0519.7122.062,074
SamPOBackbone=Qwen-2.5-3B-Instruct, Training Dataset=HelpSteer22025.0518.2620.752,105
InitialBackbone=Mistral-7B-Instruct-v0.2, Training Dataset=HelpSteer22025.0517.7415.051,630
LDDPOBackbone=Qwen-2.5-3B-Instruct, Training Dataset=HelpSteer22025.0517.3220.152,107
DPOBackbone=Qwen-2.5-3B-Instruct, Training Dataset=HelpSteer22025.0516.9319.622,100
InitialBackbone=Qwen-2.5-3B-Instruct, Training Dataset=HelpSteer22025.0516.8220.12,145
SimPOBackbone=Qwen-2.5-3B-Instruct, Training Dataset=HelpSteer22025.0516.7519.472,112
MixDPOBase model=LLaMA-3-8B, Preference dataset=Ultrafeedback2026.0214.4236.65—
vanilla DPOBase model=LLaMA-3-8B, Preference dataset=Ultrafeedback2026.029.3716.77—
CHESBase model=LLaMA-3-8B, Preference dataset=Ultrafeedback, Selected proportion=90%2026.028.1313.91—
CHESBase model=LLaMA-3-8B, Preference dataset=Ultrafeedback, Selected proportion=50%2026.026.1611.93—
Cal-DPOBase model=LLaMA-3-8B, Preference dataset=Ultrafeedback2026.024.567.45—
DPOPBase model=LLaMA-3-8B, Preference dataset=Ultrafeedback2026.024.534.04—
DPO + NLLBase model=LLaMA-3-8B, Preference dataset=Ultrafeedback2026.024.258.45—
Base-SFTBase model=LLaMA-3-8B, Preference dataset=Ultrafeedback2026.023.7310.19—