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Thinking Machines Lab account

Thinking Machines Lab

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What you get

A Tinker account without a balance: you get access to the platform, issue your own API key and pay for token volume yourself. The first thing to establish is whose email the account sits on — your datasets, trained LoRA adapters and checkpoints are tied to it, and they cannot be recovered if access is lost. The marketplace guarantee covers sign-in and working access at the moment of delivery; token spend afterwards is on you.

About the service

Access to Thinking Machines Lab models through their Tinker platform: the flagship Inkling (975B parameters, 41B active) and the lighter Inkling-Small (276B parameters, 12B active) — open-weights MoE models that natively handle text, images and audio and hold a context window of up to 1M tokens. On Tinker both come in two context variants, 64K and 256K, and thinking effort is adjustable, trading answer quality against token spend. Beyond Inkling the platform hosts other open-weights models: Qwen3.5-4B, Qwen3.5-9B, Qwen3.6-35B, Qwen3.5-397B, Kimi-K2.6, DeepSeek-V3.1, GPT-OSS and Nemotron from Lightning-30B to Ultra-550B. Tinker is not only inference but a training API: it manages the GPUs and recovery while you write your own training loop, supporting LoRA over models from 1B to 1T+ parameters, SFT, RL (GRPO, PPO), DPO and distillation. Billing is per token, charged separately for prefill, sampling and training.

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