mammoth-1

decisionmit27B

Mammoth-1 is a 27B decision model from Baseten's Base Labs, fine-tuned from Qwen3.5-27B for classification, routing, and scoring. It answers multiple-choice, yes/no, and ordered scoring questions with probabilities over predefined options rather than generated text. Shared-prefix caching reuses context across questions, while per-option probabilities support confidence thresholds and escalation decisions.

Context
16K
Input price
$0.1/1M tokens
Output price
$0/1M tokens

Capabilities

Output Control
Structured Output
JSON Mode
Infrastructure
Fine-tuning

Details

Provider Baseten
Creator baseten
Familymammoth-1
Licensemit
Statusactive
Typedecision
Input modalitiestext, image
Output modalitiestext
Open weightYes
Parameters27B
Architecture—
Context window16K tokens
Max input—
Max output—
Reasoning tokens—
Question typeschoice, noul, score
Option probabilitiesYes
Knowledge cutoff—
Release date
Sourceofficial

Pricing

Input
$0.1
Output
$0
Cache write
—
Cache read
—
Batch in
—
Batch out
—

API

GET/v1/models/baseten/mammoth-1

mammoth-1

Mammoth-1 is a 27B decision model from Baseten's Base Labs, fine-tuned from Qwen3.5-27B for classification, routing, and scoring. It answers multiple-choice, yes/no, and ordered scoring questions with probabilities over predefined options rather than generated text. Shared-prefix caching reuses context across questions, while per-option probabilities support confidence thresholds and escalation decisions.

Changes · 1 entries
mammoth-1create3289e1bNov 3, 2026, 12:44 PM