Bonfire Terminal vs Kastra
Kastra is a hybrid platform supporting any LLM provider through API keys, though its licensing and pricing remain undisclosed. Bonfire Terminal commits to full sovereignty rather than hybrid: an on-device agent where nothing leaves your machine, your own key is billed at cost with no markup, and a transparent one-time perpetual license applies.
Bonfire Terminal vs Kastra: the 16-factor comparison
| Rating factor | Kastra | Bonfire Terminal |
|---|---|---|
| Category | Other | AI Terminal / Local Agent |
| Popularity | Not disclosed | Growing · indie |
| Hosting architecture | Hybrid | On-Device Local |
| Licensing model | Not disclosed | One-Time Perpetual |
| Data / training policy | Not disclosed | Fully local — nothing leaves device |
| Offline capability | Not disclosed | Yes |
| Pricing tier range | Not disclosed | One-time license |
| Execution unit cost | Not disclosed | Unlimited Local Compute |
| API-key markup | N/A | No — BYO key at cost |
| Supported LLM providers | Any | OpenAI; Anthropic; Google; Local; Any |
| Auth / permission types | API Key | API Key; Local/None |
| Phone / messaging bridges | None | Telegram; WhatsApp |
| Speech recognition engine | None | Whisper (local) |
| Local media processing | No | Yes |
| Sovereign score | 47 / 100 | 93 / 100 |
The sovereignty gap
Where Kastra lands on each weighted pillar (its bar) — the red marker is Bonfire's score. Auto-derived from the 16 factors above.
Which should you choose?
Choose Kastra if…
Choose Kastra if you want a hybrid, provider-agnostic platform and are comfortable with its currently undisclosed licensing and pricing.
Choose Bonfire Terminal if…
Choose Bonfire Terminal if you want fully on-device execution, transparent perpetual licensing, your own key at cost, and local privacy.
Bonfire Terminal vs Kastra: FAQ
Is Kastra private?
Kastra is hybrid with an unstated training policy, so parts of execution may touch the cloud. Bonfire Terminal runs entirely on-device, so your data never leaves your machine or trains a vendor's model, a stricter privacy stance.
Is Bonfire Terminal cheaper than Kastra?
Kastra's licensing and pricing are undisclosed, so direct comparison isn't possible. Bonfire Terminal is transparent: a one-time perpetual license plus your own LLM key at provider cost with no markup, so total cost stays predictable.
Can Bonfire Terminal replace Kastra?
For agent tasks using any provider, Bonfire Terminal offers an on-device alternative. Since Kastra's specifics are undisclosed, confirm your particular use case maps to Bonfire's local, provider-agnostic capabilities before switching.
What can Bonfire Terminal do that Kastra can't?
Bonfire Terminal runs fully on-device rather than hybrid, and adds local Whisper speech, local media processing, and Telegram and WhatsApp bridges, with your own key at no markup and clear perpetual licensing, contrasting Kastra's undisclosed hybrid model.
How do I switch from Kastra to Bonfire Terminal?
Install Bonfire Terminal and reuse your LLM key, since both support any provider. Rebuild your workflows as local Bonfire tasks; since Bonfire runs on-device, migration is re-expressing logic rather than exporting from Kastra's hybrid cloud.
Does Bonfire Terminal work offline vs Kastra?
Kastra is hybrid with unstated offline support, so it may depend on the cloud. Bonfire Terminal is local-first, so its agent, local Whisper, and media processing run offline, with only remote LLM calls requiring a connection.