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Favicon for baseten

Baseten

Access 3 Baseten models through the OpenRouter unified API including Joey 1, Mammoth 1, and Elephant 1. Compare pricing, context windows, benchmarks, and capabilities between different Baseten models.

Baseten tokens processed on OpenRouter

  • Favicon for baseten
    Baseten: Joey 1Joey 1
    89.4M tokens

    Joey 1 is a 2B decision model from Base Labs, Baseten's research team, built on Qwen3.5-2B. Given a state (text or JSON) and typed questions (yes/no, multiple choice, or ordinal score), it returns a calibrated probability for every option in a single forward pass, with no text generation. It is TypeSafe System One compatible and suits high-volume routing, classification, and guardrail checks where latency and cost matter most. Its larger siblings are Elephant 1 and Mammoth 1.

    by basetenOct 29, 2026$0.01/M input tokens$0/M output tokens
  • Favicon for baseten
    Baseten: Mammoth 1Mammoth 1
    610M tokens

    Mammoth 1 is a 27B decision model from Base Labs, Baseten's research team, built on Qwen3.5-27B. Given a state (text or JSON) and typed questions (yes/no, multiple choice, or ordinal score), it returns a calibrated probability for every option in a single forward pass, with no text generation. It is TypeSafe System One compatible and suits classification, routing, and scoring where you need a scored answer instead of prose. Its smaller sibling is Elephant 1.

    by basetenOct 21, 2026$0.10/M input tokens$0/M output tokens
  • Favicon for baseten
    Baseten: Elephant 1Elephant 1
    1.05B tokens

    Elephant 1 is a 9B decision model from Base Labs, Baseten's research team, built on Qwen3.5-9B. Given a state (text or JSON) and typed questions (yes/no, multiple choice, or ordinal score), it returns a calibrated probability for every option in a single forward pass, with no text generation. It is TypeSafe System One compatible and suits routing, classification, and scoring where you need a scored answer instead of prose. Its larger sibling is Mammoth 1.

    by basetenOct 21, 2026$0.035/M input tokens$0/M output tokens

Documentation

Guides, cookbooks, blog posts, and tools for building with Baseten models on OpenRouter.

  • Multimodal DecisionsGuide
  • Decisions LabLab

Frequently asked questions

OpenRouter serves 3 Baseten models behind one OpenAI-compatible API. Create an OpenRouter API key, point your client at https://openrouter.ai/api/v1, and set the model to an ID such as baseten/joey-1. The quickstart has request examples for every supported SDK.

Joey 1 has the largest context window of any Baseten model on OpenRouter, accepting up to 16,384 tokens per request.

Joey 1 is the most recently added Baseten model on OpenRouter, listed on October 29, 2026.