Inkling Small
by Thinking MachinesReleased Jul 30, 2026
thinkingmachines/inkling-small- Reads images
- Hears audio
- Calls tools
- Reasons before it answers
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...
- Input / 1M tokens
- $0.54
- Output / 1M tokens
- $1.44
- Context
- 524K
- Longest answer
- 262K
What it costs
What each call is charged to the token's AI credit.
| Billed for | You pay |
|---|---|
| Input tokens | $0.54 / 1M |
| Output tokens | $1.44 / 1M |
| Cached input, read | $0.12 / 1M |
A typical call
A short chat turn: 2,000 tokens in, 500 out.
- per call
- $0.0018
- calls per $20
- 11K
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-small", 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
- 262,144 tokens
- Reasoning effort
- none to max
- Intelligence index
- 25.7 (#63 of 220 rated)
- Released
- Jul 30, 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 Small cost?
$0.54 per million input tokens and $1.44 per million output tokens, paid from the token's AI credit. A call of 2,000 tokens in and 500 out costs about $0.0018.
How do I call Inkling Small?
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-small. The token's AI credit pays for each call.
How long a prompt can Inkling Small take?
Up to 524,288 tokens of context, and up to 262,144 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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