Today we’re releasing two decision models, elephant-1 (9B) and mammoth-1 (27B), trained by the @baselabs team, available for free for one week on our Model APIs.
mammoth-1 is #1 on the Jev Decision Index and elephant-1 is tied for #1 on the Artificial Analysis Decision Index.
It’s a new model, but more importantly, this is an open-source model you can access, deploy, and post-train on Baseten (or wherever you do your best work).
The free week ends 10/27/26 at 11:59 PM PT. Try it and let us know what you think.
Try mammoth-1 here: baseten.co/library/mammot…
Try elephant-1 here:
baseten.co/library/elepha…
Updated Oct 23, 2026, 10:40 UTC
Baseten free week for mammoth-1 and elephant-1
BasetenLiveNew offer
Baseten's research lab released two open-source decision models, mammoth-1 and elephant-1, and made them free to try for one week on Baseten Model APIs from Oct 21.
- Value
- Free use of mammoth-1 (27B) and elephant-1 (9B) on Baseten Model APIs for one week
- Who qualifies
- Anyone using Baseten Model APIs; no other eligibility stated
- How to claim
- Call mammoth-1 or elephant-1 through Baseten Model APIs with your Baseten API key
- Expiry
- 2026-10-27 23:59 PT
- Released
- Oct 21, 2026 Source ↗
- Status
- Live
- Last verified
- Oct 23, 2026
Timeline 1
- Launched
Added to that.promo Source
Posts 1
Notes and caveats
Free week only. Baseten's blog says one week from the Oct 21 launch; the exact end, Oct 27 at 23:59 PT, comes from Baseten's own X post. Pricing after the free week is not stated. Both models are also open-source on Hugging Face.
Official sources
Last updated Oct 23, 2026, 10:40 UTC · last verified Oct 23, 2026