Mammoth 1

Mammoth 1 is Base Labs' 27B decision model, the larger sibling of Elephant 1, post-trained from Qwen3.5-27B and open-weight under the MIT license. It answers yes/no, choice and rating questions about text and images, with a trained option for not knowing.

Price per 1M input tokens: $0.12input only, no output tokens
Context: 16K tokens

API

curl https://api.opencheap.si/v1/systemone \
  -H "Authorization: Bearer $OPENCHEAP_API_KEY" -H "Content-Type: application/json" \
  -d '{ "model": "opencheap/mammoth-1", "state": "I was charged twice for my order and nobody answers my emails.",
        "questions": { "frustrated": { "type": "noul", "instructions": "Is the customer frustrated?" } } }'