Top Picks
DeepSeek V3 offers strong general capability at low cost with open weights; Llama 4 remains a widely adopted open-weight option from Meta with a large community and tooling ecosystem around it.
Open-Weight Trade-offs to Remember
See our Open Source vs Closed Source LLMs page for the fuller trade-off framework — control and no per-token cost against needing your own infrastructure.
Related Pages
Frequently Asked
Are open-weight models as capable as closed ones now?
The gap has narrowed significantly; DeepSeek V3 in particular is competitive with many closed options on general capability.
Is 'open-source' the technically correct term?
'Open-weight' is more precise since the trained parameters are released, though full training code and data aren't always included.
Do I need to pay to use an open-weight model?
The weights are free to download; running them requires your own computing infrastructure, which has its own real cost.
Where can I compare open-weight vs closed options directly?
See our Open Source vs Closed Source LLMs page.