Inkling
by Thinking MachinesReleased Jul 17, 2026
thinkingmachines/inkling- Reads images
- Hears audio
- Calls tools
- Reasons before it answers
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,...
- Input / 1M tokens
- $1.20
- Output / 1M tokens
- $4.86
- Context
- 524K
- Longest answer
- 472K
What it costs
What each call is charged to the token's AI credit.
| Billed for | You pay |
|---|---|
| Input tokens | $1.20 / 1M |
| Output tokens | $4.86 / 1M |
| Cached input, read | $0.20 / 1M |
A typical call
A short chat turn: 2,000 tokens in, 500 out.
- per call
- $0.0048
- calls per $20
- 4,140
What it can do
From its listing. The router passes every field through.
- Reads imagesYes
- Reads files and PDFsNo
- Hears audioYes
- Calls toolsYes
- Answers in a JSON schemaNo
- Reasons before it answersYes
- Searches the webNo
- Caches long promptsYes
- Draws imagesNo
Call it
Any router key works, in the format your SDK already speaks.
import OpenAI from "openai";const ai = new OpenAI({ baseURL: "https://relayfor.si/api/v1", apiKey: process.env.RELAYFOR_ROUTER_KEY,});const reply = await ai.chat.completions.create({ model: "thinkingmachines/inkling", messages: [{ role: "user", content: "Welcome the 1,000th holder in one line." }],});Specifications
What its maker and providers list for it.
- Reads
- Text, Images, and Audio
- Writes
- Text
- Context
- 524,288 tokens
- Longest answer
- 471,859 tokens
- Reasoning effort
- none to max
- Intelligence index
- 25 (#68 of 220 rated)
- Released
- Jul 17, 2026
- Moderation
- None
Request fields
The fields its providers accept, passed through as you send them.
- frequency_penalty
- include_reasoning
- logit_bias
- max_tokens
- min_p
- presence_penalty
- reasoning
- reasoning_effort
- repetition_penalty
- seed
- stop
- temperature
- tool_choice
- tools
- top_k
- top_p
Questions
How much does Inkling cost?
$1.20 per million input tokens and $4.86 per million output tokens, paid from the token's AI credit. A call of 2,000 tokens in and 500 out costs about $0.0048.
How do I call Inkling?
Make a router key for one of your tokens on the dashboard, point any OpenAI or Anthropic SDK at https://relayfor.si/api/v1 and send the model id thinkingmachines/inkling. The token's AI credit pays for each call.
How long a prompt can Inkling take?
Up to 524,288 tokens of context, and up to 471,859 tokens in one answer.
Are my prompts stored?
No. The RFS Router passes each call through and keeps only its token counts and cost, for the token's usage page.
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