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Favicon for thinkingmachines

Thinkingmachines

Access 4 Thinkingmachines models through the OpenRouter unified API including Inkling 2 Small (free), Inkling Small, and Inkling Small (batch). Compare pricing, context windows, benchmarks, and capabilities between different Thinkingmachines models.

Thinkingmachines tokens processed on OpenRouter

  • Favicon for thinkingmachines
    Thinking Machines: Inkling 2 Small (free)Inkling 2 Small (free)Free variant
    362M tokens

    Inkling 2 Small is a multimodal mixture-of-experts reasoning model from Thinking Machines Lab, with 17B active parameters out of 594B total. It is the first model in the second Inkling generation. It was trained with reinforcement learning on long-horizon coding tasks across many agent harnesses, and is suited for agentic coding, autonomous research, agentic knowledge work and retrieval-augmented generation, with English and general multilingual support. It accepts text and image input (no audio), supports tool calling and variable reasoning effort, and has a 1M-token context window.

    by thinkingmachinesNov 9, 20261.05M context$0/M input tokens$0/M output tokens
  • Favicon for thinkingmachines
    Thinking Machines: Inkling SmallInkling Small
    14B tokens

    Inkling Small is an open-weight multimodal mixture-of-experts model from Thinking Machines Lab, with 12B active parameters out of 276B total. It is positioned as the smaller, more efficient member of the Inkling family and is suited for reasoning, coding, agentic workflows, retrieval-augmented generation, instruction following, and multilingual conversation.

    by thinkingmachinesJul 30, 2026524K context$0.45/M input tokens$1.20/M output tokens
  • Favicon for thinkingmachines
    Thinking Machines: Inkling Small (batch)Inkling Small (batch)Batch variant
    12K tokens

    Inkling Small is an open-weight multimodal mixture-of-experts model from Thinking Machines Lab, with 12B active parameters out of 276B total. It is positioned as the smaller, more efficient member of the Inkling family and is suited for reasoning, coding, agentic workflows, retrieval-augmented generation, instruction following, and multilingual conversation.

    by thinkingmachinesJul 30, 2026524K context$0.36/M input tokens$0.96/M output tokens
  • Favicon for thinkingmachines
    Thinking Machines: InklingInkling
    21.5B tokens

    Inkling is an open-weight multimodal mixture-of-experts model from Thinking Machines Lab, with 41B active parameters out of 975B total. It is designed for general-purpose reasoning, coding, agentic and tool-use systems, retrieval-augmented generation, instruction following, and multilingual conversational applications. Its native image and audio understanding supports multimodal analysis alongside text.

    by thinkingmachinesJul 17, 2026524K context$1/M input tokens$4.05/M output tokens

Frequently asked questions

OpenRouter serves 4 Thinkingmachines 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 thinkingmachines/inkling-2-small:free. The quickstart has request examples for every supported SDK.

Inkling 2 Small (free) is available at no cost through the OpenRouter API.

Inkling 2 Small (free) has the largest context window of any Thinkingmachines model on OpenRouter, accepting up to 1,048,576 tokens per request.

Inkling 2 Small (free) is the most recently added Thinkingmachines model on OpenRouter, listed on November 9, 2026.