Thinking Machines / thinkingmachines/inkling

Inkling - access through LLMTR

Inkling is Thinking Machines' flagship open-weights model: a Mixture-of-Experts architecture with 975 billion total and 41 billion active parameters per token. It reasons step by step before answering, and you can tune that effort per request — six levels from none (off) to xhigh via `reasoning_effort`. It accepts images as base64 data URLs, makes tool/function calls, produces JSON object output, and supports prompt-cache reads. Reasoning tokens are returned inside `completion_tokens` and billed as output.

Technical specifications

Canonical IDthinkingmachines/inkling
ProviderThinking Machines
Context window65,536 tokens
OperationsCHAT_COMPLETIONS
Modalitiestext, image

Pricing

A 6% platform margin applies to credit top-ups; model usage prices are not separately marked up.

OperationMetricUnitPrice
CHAT_COMPLETIONSINPUT_TEXTPER_1M_TOKENS$1.87
CHAT_COMPLETIONSCACHE_READPER_1M_TOKENS$0.374000
CHAT_COMPLETIONSOUTPUT_TEXTPER_1M_TOKENS$4.68

Example usage

With existing OpenAI SDK flows, change only the base URL and model identifier.

curl https://llmtr.com/v1/chat/completions \
  -H "Authorization: Bearer llmtr-your_key" \
  -H "Content-Type: application/json" \
  -d '{"model":"thinkingmachines/inkling","messages":[{"role":"user","content":"Hello"}]}'

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