Best Open-Source AI Models

Ranked by MMLU score. Only includes models with open weights (Apache 2.0, MIT, Llama Community License, etc.).

Updated April 2026 · Source: AI Flash Report model database

#ModelMMLUParametersContextLicense
#1 DeepSeek V3.2
DeepSeek
90.1% 671B MoE 1M tokens DeepSeek License (open weights, commercial OK)
#2 DeepSeek-V3
DeepSeek
88.5% 671B 128K tokens DeepSeek License (open weights)
#3 Grok-1
xAI
73.0% ~314B 8K tokens Apache 2.0
#4 Kimi K2
Moonshot AI
91.3% 1.04T MoE 2M tokens Modified MIT (open weights)
#5 Llama 2 70B
Meta
68.9% 70B 4K tokens Llama 2 Community License
#6 GLM-5
Zhipu AI
88.7% 744B 200K tokens Proprietary (open weights for non-frontier sizes)

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