Models / Use cases
Best open-source AI models
Open weights mean you can leave any time — self-host later, swap providers, or keep calling them through one metered endpoint today. These are the open models that hold up in production.
Ranked
The picks
DeepSeek V4
$0.3/Mtok inThe strongest general open-weights model per dollar.
$0.3 / M input · $0.9 / M output
Kimi K3
$1.2/Mtok inThe open pick for agentic tool-calling workloads.
$1.2 / M input · $3.6 / M output
Qwen3 Coder
$0.9/Mtok inThe open coding specialist — a real alternative to proprietary coding models.
$0.9 / M input · $2.7 / M output
FAQ
Frequently asked questions
Why call an open model through an API instead of self-hosting?
Self-hosting pays off at sustained high volume. Below that, per-token API pricing with zero ops overhead is cheaper — and because the weights are open, the exit door stays open too.
One key. Every model. Exact prices.
Route every pick on this page through one key. Free starter credits included — no subscription required.