Model tracker / Decision models / Baseten (Base Labs)
Elephant-1
Open-weight 9B decision model on Qwen3.5-9B for classification, routing and scoring
Elephant-1 is an open-weight decision model from Baseten (Base Labs) (MIT, 9B parameters): it answers typed questions, such as yes or no, pick one or pick several, with probabilities instead of writing text. It's currently free to use (Baseten Model APIs, Vercel AI Gateway). JevBench, the main independent benchmark, doesn't list it yet.
- Made by
- Baseten (Base Labs)
- Weights
- Open, MIT
- Size
- 9B
- Where
- Baseten Model APIs, Vercel AI Gateway (both free until 27 Oct)
- Images
- No, text only
- Context
- 16,384 (max sequence length)
- Fine-tuning
- Not stated
Elephant-1 price
US dollars per million input tokens. Decision models don't write text, so none of the hosted ones charge for output.
| Where | Input | Output | Notes | Checked |
|---|---|---|---|---|
| Baseten Model APIs, Vercel AI Gateway (both free until 27 Oct) | Free | Free | Free on Baseten's Model APIs and Vercel's AI Gateway through 27 October 2026 (11:59 PM PT). Baseten's pricing page lists no per-token price yet. | 2026-10-22 |
Decision models like Elephant-1
Every other decision model we track, by independent JevBench score.
| Model | Input / M | JevBench | Weights |
|---|---|---|---|
| Elephant-1 | Free | – | Open |
| d1-ultra Liquid AI | $0.042 | 80.5 | Closed |
| Jev 1.13 TypeSafe AI | $0.042 | 77.1 | Closed |
| Clef Cloudflare | $0.24 | 75.3 | Open |
| d1 Liquid AI | $0.02 | 74.4 | Closed |
| OpenAI Decisions (GPT-6 Luna) OpenAI | $0.10 | 73.5 | Closed |
| Microsoft-Decision-1 Microsoft | $0.042 | 70.8 | Closed |
| Clef-flash Cloudflare | $0.038 | 63.8 | Open |
| Clef-omni Cloudflare | $0.15 | 58.3 | Open |
| d1-3B Liquid AI | Self-host | 49.5 | Open |
| d1-omni-600M (experimental) Liquid AI | Self-host | 32.8 | Open |
| Laya Convai Innovations | Free | 32.5 | Open |
| CLM-8B Stanford and NVIDIA | Self-host | 20.1 | Open |
| Clairic Cloudflare | $0.10 | – | Closed |
| Mammoth-1 Baseten (Base Labs) | Free | – | Open |
| Strands Decider 2B AWS Strands Labs | Self-host | – | Open |
Compare them all in the decision models table →
Elephant-1 FAQ
How much does Elephant-1 cost?
Elephant-1 costs nothing at Baseten Model APIs, Vercel AI Gateway (both free until 27 Oct). Free on Baseten's Model APIs and Vercel's AI Gateway through 27 October 2026 (11:59 PM PT). Baseten's pricing page lists no per-token price yet. Checked 22 October 2026.
Is Elephant-1 open weight?
Yes. Baseten (Base Labs) publishes the weights under MIT, so you can run and fine-tune it yourself.
How fast is Elephant-1?
Baseten (Base Labs) doesn't publish a latency figure.
How does Elephant-1 compare with Jev?
JevBench doesn't list Elephant-1 yet, so there's no independent comparison. Jev costs $0.042 per million input tokens; Elephant-1 costs Free.