Overview
Open source models are released with publicly available weights, letting anyone self-host, fine-tune, or fully inspect them, in contrast to closed models accessible only through a provider's API. This cross-family page pulls together the open-weight releases tracked across the index, spanning several labs, since the appeal of open weights — cost control, customization, inspectability — applies regardless of which specific lab shipped a given model.
LLMWIKI tracks Open Source Models at both the family level, here, and the individual variant level, so you can get oriented on how the family is structured before drilling into a specific release's exact specs and pricing. Where a company ships multiple sizes or variants, the general pattern is a trade-off between capability, latency, and cost — larger or newer releases tend to handle harder, longer, or more ambiguous tasks more reliably, while smaller or older releases are cheaper and faster for simple, high-volume use.
Variants in the Open Source Models Family
Where It Fits in Practice
- Comparing open-weight models across labs rather than within a single family
- Self-hosting a model to avoid per-token API costs at high volume
- Fine-tuning an open model on proprietary data without sending it to a third party
- Auditing model weights directly for research or compliance purposes
- Avoiding vendor lock-in by retaining the ability to run a model independently
Considerations
Open-source licenses vary meaningfully in what they permit, from fully permissive to restricted commercial use, so the specific license for the model you're considering is worth reading closely before building a product on top of it.
Frequently Asked
Which Open Source Models variant should I start with?
That depends on your task's complexity, latency needs, and budget — see the variant profiles linked below for specifics on each.
How often does Open Source Models release new versions?
Varies by lab and generation — check the individual variant pages for release history.
Are all Open Source Models variants priced the same?
No — pricing and access vary by variant, with larger, more capable versions generally costing more per token.
Where can I compare Open Source Models directly against a competing family?
See the Comparisons hub for head-to-head pages between specific models.
Is Open Source Models available as open weights?
By definition, every model tracked on this page is released with open weights, though specific license terms still vary.
How is this family page different from an individual model profile?
This page orients you across the Open Source Models lineup as a whole; each individual variant has its own dedicated profile with specific benchmarks, pricing, and considerations.