modelparams.dev

Thinking Machines Inkling API parameters

These are the API parameters modelparams.dev tracks for Thinking Machines Inkling — the settings you send in a request. Each row gives the type, default, valid range or values, and the conditions that gate it. It's the same data the JSON API serves.

After the parameter count instead — how many weights Inkling has? That's a different number, and we don't track it. Here's the difference.

Length 1 param
Parameter Type Default Description Condition
Max tokens
max_tokens
integer (1…+∞) Maximum number of output tokens the model may generate.
Sampling 2 params
Parameter Type Default Description Condition
Temperature
temperature
number 1 Controls randomness. Lower values make outputs more focused; higher values make them more varied.
Top P
top_p
number (0…1) 1 Controls nucleus sampling by limiting generation to tokens within the selected cumulative probability.
Reasoning 2 params
Parameter Type Default Description Condition
Reasoning effort
reasoning_effort
enum (none | minimal | low | medium | high | xhigh) "high" Controls how much thinking Inkling performs before answering. Accepts a preset name or a number between 0.0 and 0.99; presets map to numeric effort levels (none=0.0, minimal=0.1, low=0.2, medium=0.7, high=0.9, xhigh=0.99).
Separate reasoning
separate_reasoning
boolean true Returns the model's reasoning in a dedicated reasoning_content field instead of interleaving it with the final message content.

Thinking Machines Inkling API parameters in brief

Thinking Machines Inkling documents 5 API parameters, grouped by what they control:

Frequently asked questions

Which API parameters does Thinking Machines Inkling support?
Thinking Machines Inkling accepts 5 API parameters in the request body: max_tokens, temperature, top_p, reasoning_effort, separate_reasoning.
What is the default temperature for Thinking Machines Inkling?
The default temperature for Thinking Machines Inkling is 1.
What is the default top_p for Thinking Machines Inkling?
The default top_p for Thinking Machines Inkling is 1, within a valid range of 0 to 1.

Resources

All Thinking Machines models Glossary Full catalog

Inkling — JSON

The full model definition as served by the API. Copy it or open the endpoint directly.

{
  "$schema": "https://modelparams.dev/api/v1/schema.json",
  "provider": "thinking-machines",
  "authType": "api_key",
  "model": "Inkling",
  "params": [
    {
      "path": "max_tokens",
      "label": "Max tokens",
      "description": "Maximum number of output tokens the model may generate.",
      "group": "generation_length",
      "type": "integer",
      "range": {
        "min": 1
      }
    },
    {
      "path": "temperature",
      "label": "Temperature",
      "description": "Controls randomness. Lower values make outputs more focused; higher values make them more varied.",
      "group": "sampling",
      "type": "number",
      "default": 1
    },
    {
      "path": "top_p",
      "label": "Top P",
      "description": "Controls nucleus sampling by limiting generation to tokens within the selected cumulative probability.",
      "group": "sampling",
      "type": "number",
      "default": 1,
      "range": {
        "min": 0,
        "max": 1
      }
    },
    {
      "path": "reasoning_effort",
      "label": "Reasoning effort",
      "description": "Controls how much thinking Inkling performs before answering. Accepts a preset name or a number between 0.0 and 0.99; presets map to numeric effort levels (none=0.0, minimal=0.1, low=0.2, medium=0.7, high=0.9, xhigh=0.99).",
      "group": "reasoning",
      "type": "enum",
      "default": "high",
      "values": [
        "none",
        "minimal",
        "low",
        "medium",
        "high",
        "xhigh"
      ]
    },
    {
      "path": "separate_reasoning",
      "label": "Separate reasoning",
      "description": "Returns the model's reasoning in a dedicated reasoning_content field instead of interleaving it with the final message content.",
      "group": "reasoning",
      "type": "boolean",
      "default": true
    }
  ]
}

How to use

Building with an AI agent? Hit Copy to grab this whole guide as Markdown and paste it in — or point your agent straight at /llms.txt.

modelparams.dev is an open, community-maintained catalog of model parameters. Each entry shows the knobs you can turn — type, default, range, and the conditions that gate it.

The same model accessed via an API key and via a subscription usually exposes a different set of parameters. We list both as separate entries so the data stays honest.

Catalog API

The full catalog is static JSON, CORS-enabled, served from the edge.

curl https://modelparams.dev/api/v1/models.json

Each entry is keyed by provider/model for API-key variants; subscription variants append -subscription.

If you only need the params for one model contract, use the providerless endpoint. Subscription contracts are model slugs with -subscription.

curl https://modelparams.dev/api/v1/params/gpt-5.5.json
curl https://modelparams.dev/api/v1/params/gpt-5.5-subscription.json

Single model

curl https://modelparams.dev/api/v1/models/anthropic/claude-opus-4-7.json
curl https://modelparams.dev/api/v1/models/anthropic/claude-opus-4-7-subscription.json

JSON Schema

Every entry validates against a JSON Schema you can use in your editor or pipeline.

curl https://modelparams.dev/api/v1/schema.json

Add this header to any YAML you author for autocomplete in VS Code:

# yaml-language-server: $schema=https://modelparams.dev/api/v1/schema.json

Logos

Provider logos are available at /assets/logos/{provider}.svg where {provider} is the provider slug. They use currentColor so they inherit your text color.

curl https://modelparams.dev/assets/logos/anthropic.svg

Logos are sourced from the models.dev repo (MIT) and used under nominative fair use.

Contribute

The data lives in YAML under models/{provider}/{model}-{auth}.yaml in the GitHub repo. Open a PR; CI validates against the schema and rebuilds.

Edit on GitHub MIT licensed