Claude Sonnet 5 Is Now Available on Buda
Claude Sonnet 5 is now available on Buda as a premium model for stronger everyday agent reasoning, coding, and review workflows.

Claude Sonnet 5 is now available in Buda.
It is a premium model for teams that want stronger reasoning without jumping all the way to the highest subscription-only tier.
What's New
Buda now includes Claude Sonnet 5 in the model selector.
Sonnet 5 is built for the middle of real agent work: planning, coding, debugging, document review, research synthesis, and deciding the next step in a workflow. It is stronger than the default Sonnet baseline, but still practical enough to use throughout a working session.
That makes it a good premium default for paid teams that want better judgment on everyday work.
Premium Access
Claude Sonnet 5 is a premium model on Buda.
Free spaces can keep using the broad free model set, including Claude Sonnet 4.6, Gemini, GPT mini models, DeepSeek, and fast execution models. Sonnet 5 is available to paid plans because its cost profile and reasoning quality sit above the free baseline.
| Tier | Best fit |
|---|---|
| Free models | everyday chat, drafts, routing, triage, lightweight execution |
| Premium Sonnet 5 | stronger planning, coding, review, and agent judgment |
| Subscription-only Fable | highest-tier reasoning when answer quality matters most |
Credits still meter usage. Plan access decides whether the model can be selected.
Credit Multiplier
Claude Sonnet 5 uses the premium Sonnet pricing profile in Buda.
| Model | Credits | Access |
|---|---|---|
| Claude Sonnet 4.6 | 1.0x | Free |
| Claude Sonnet 5 | 1.7x | Premium |
| Claude Fable 5 | 3.3x | Subscription |
Use Sonnet 4.6 for regular work. Use Sonnet 5 when the agent needs more careful reasoning. Use Fable 5 only when the next decision is expensive to get wrong.
Where Sonnet 5 Fits
Sonnet 5 is useful when an agent needs a better reasoning pass but the workflow still needs to move quickly.
- Review a pull request before it reaches a human reviewer.
- Debug an issue that spans logs, code, and product behavior.
- Plan a multi-step task with file edits and follow-up checks.
- Turn research notes into a clear execution plan.
- Improve customer-facing copy before final approval.
- Help route a task between faster execution models and deeper review models.
The pattern is simple: use cheaper models for repeatable execution, use Sonnet 5 for the premium reasoning layer, and keep humans in control of final judgment.
Better Routing, Better Workflows
A model selector is not a trophy case. It is part of workflow design.
Buda now gives teams one more premium step between everyday free models and the highest subscription-only reasoning tier. That makes routing easier: fast models for throughput, Sonnet 5 for stronger daily judgment, and Fable for the most sensitive calls.
Try Claude Sonnet 5 in Buda at buda.im/dashboard.