Model guide · updated 2026
Best open-source AI models
Open-weight models have closed much of the gap with closed flagships — at a fraction of the price. These are the strongest open models by intelligence, from DeepSeek, Zhipu (GLM), Alibaba (Qwen), Moonshot (Kimi), MiniMax and OpenAI's GPT-OSS.
- 1
DeepSeek v3.1
DeepSeekTop pickSoftware engineering
AA 60Intelligence - 2
Kimi K2.6
Moonshot AILong-horizon autonomous coding and multi-file refactoring projects
AA 54Intelligence - 3
DeepSeek V4 Pro
DeepSeekHigh-volume automated coding pipelines
AA 52Intelligence - 4
GLM 5.1
Zhipu AIAutonomous software engineering agents that run multi-step tasks for hours without human checkpoints
AA 51Intelligence - 5
Qwen 3.6 Plus
AlibabaAgentic coding and repository-level problem solving
AA 50Intelligence - 6
MiniMax M2.7
MiniMaxAgentic coding workflows and multi-turn tool-calling chains where the model drives autonomous
AA 50Intelligence - 7
GLM 5
Zhipu AICode generation and completion
AA 50Intelligence - 8
DeepSeek V4 Flash
DeepSeekHigh-volume coding assistants and IDE integrations where LiveCodeBench 91.6% and SWE-bench 79% performance matters at low per-token cost
AA 47Intelligence
Open-weight models only (GPT-OSS, DeepSeek, GLM, Qwen, Kimi, MiniMax), ranked by the Artificial Analysis intelligence index.
Frequently asked questions
Here we mean open-weight models — ones whose trained weights are publicly released so they can be self-hosted or run through many providers. DeepSeek, GLM, Qwen, Kimi, MiniMax and OpenAI's GPT-OSS all qualify.
The top open models now rival closed flagships on many benchmarks, especially coding and math, while costing far less. They can still trail the very best closed models on the hardest reasoning tasks.
Yes — on just4o.chat the open models above run through hosted inference, so you get the cost benefits without managing GPUs.