Thinking Machines: Inkling

thinkingmachines/inkling

Modalities: text+image+audio->text
In / out price: $1 / $4.05
Context: 524K
Released: Jul 17, 2026
Knowledge cutoff: —

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,...

VisionAudioToolsReasoningLong context

Supported parameters

frequency_penalty
Frequency penalty
Lowers the chance of a token in proportion to how often it already appeared.
include_reasoning
Include reasoning
Include a reasoning summary in the response.
logit_bias
Logit bias
Add or subtract from token ids to encourage or ban them.
max_tokens
Max tokens
Upper bound on generated tokens. Output stops at the limit.
min_p
Min-p
Drops tokens below this probability threshold.
presence_penalty
Presence penalty
Lowers the chance of any token that has already appeared.
reasoning
Reasoning
Enable or configure reasoning. The fields differ by model.
reasoning_effort
Reasoning effort
How much compute to spend reasoning. Often low, medium, or high.
repetition_penalty
Repetition penalty
Penalizes text that already appeared. Common on open models.
seed
Seed
A fixed seed helps reproduce sampling. It does not guarantee byte-identical output.
stop
Stop
Stop when these strings are produced. A string or an array of strings.
temperature
Temperature
Sampling temperature. Lower is steadier, higher is more varied. Often 0 to 2.
tool_choice
Tool choice
Whether to call a tool: auto, none, or a named function.
tools
Tools
Function definitions the model may call via tool_calls.
top_k
Top-K
Sample only from the K most likely tokens.
top_p
Top-p
Sample only from tokens whose cumulative probability reaches top_p.

Supported parameters

frequency_penalty

Frequency penalty

Lowers the chance of a token in proportion to how often it already appeared.

include_reasoning

Include reasoning

Include a reasoning summary in the response.

logit_bias

Logit bias

Add or subtract from token ids to encourage or ban them.

max_tokens

Max tokens

Upper bound on generated tokens. Output stops at the limit.

min_p

Min-p

Drops tokens below this probability threshold.

presence_penalty

Presence penalty

Lowers the chance of any token that has already appeared.

reasoning

Reasoning

Enable or configure reasoning. The fields differ by model.

reasoning_effort

Reasoning effort

How much compute to spend reasoning. Often low, medium, or high.

repetition_penalty

Repetition penalty

Penalizes text that already appeared. Common on open models.

seed

Seed

A fixed seed helps reproduce sampling. It does not guarantee byte-identical output.

stop

Stop

Stop when these strings are produced. A string or an array of strings.

temperature

Temperature

Sampling temperature. Lower is steadier, higher is more varied. Often 0 to 2.

tool_choice

Tool choice

Whether to call a tool: auto, none, or a named function.

tools

Tools

Function definitions the model may call via tool_calls.

top_k

Top-K

Sample only from the K most likely tokens.

top_p

Top-p

Sample only from tokens whose cumulative probability reaches top_p.