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Thinking Machines: Inkling

inkling

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Inkling costs $1.30 per million input tokens and $5.26 per million output tokens, supports 1.04M context, and is available through the OpenAI-compatible API.

The non-thinking version of Thinking Machines' 975B-parameter open-weights Mixture-of-Experts generalist with 41B active parameters. It gives faster direct answers across text, images, and audio, and is built for agentic coding, tool use, detailed instruction following, and long-context work.

Modalities

Text + Image + Audio → Text

Input / output price

$1.30 / $5.26 per 1M

Context

1.04M · max output 33K

Capabilities

VisionTool callingLong contextOpen weights

Pricing

Billed per token actually used and deducted from your credits.

ItemUSD per 1M tokens
Input$1.30
Output$5.26
Cached input$0.221

Calculator

Drag the sliders to estimate what this model will cost.

Per request
$0.00811
Per day
$4.06
Per month (30 days)
$121.68

Inkling: input $1.3/M · output $5.265/M · cached input $0.221/M

Request with these settings
curl https://api.geniusrelaygpt.com/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "inkling", "max_tokens": 800,
       "messages": [{"role": "user", "content": "…"}]}'

Code samples

OpenAI-compatible. Set the base URL to https://api.geniusrelaygpt.com/v1 and the model to inkling.

curl https://api.geniusrelaygpt.com/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "inkling",
    "stream": true,
    "messages": [{"role": "user", "content": "Hello"}]
  }'

Use it in a client: Cursor · Cline · SillyTavern · Codex

Parameters

Common OpenAI parameters can be passed as-is.

temperaturetop_pmax_tokensstreamstoppresence_penaltyfrequency_penaltyseed

FAQ

How is Inkling billed?
Input is $1.30 and output is $5.26 per million tokens; cached input is $0.221. The charge for every request is listed in Usage Logs in the console.
How long is the context window?
1.04M tokens. In a long conversation every turn is billed for the full input, so keep the history under control.
Does it support streaming?
Yes. Add "stream": true to the request to receive server-sent events in the OpenAI format.
Inkling API pricing · GeniusRelay