{
	"model_id": "thinkingmachines/inkling-256k",
	"provider_id": "thinkingmachines",
	"name": "Inkling 256K",
	"description": "The 256K-context variant of Inkling, Thinking Machines' open-weights hybrid reasoning MoE model. Same hybrid reasoning, tool-use, and streaming support as the base model, with an extended context window for longer conversations and documents. Currently intended for low-traffic testing and internal use rather than high-throughput production deployments.",
	"task": "Text Generation",
	"tags": [
		"LLM",
		"Reasoning",
		"Coding",
		"Agentic",
		"Open Source",
		"Tool Use",
		"MoE",
		"Long Context"
	],
	"context_length": 262144,
	"max_output_tokens": null,
	"schema_version": "1.0.0",
	"pricing": {
		"Input tokens (per 1M)": 3.74,
		"Output tokens (per 1M)": 9.36,
		"Cached input tokens (per 1M)": 0.748,
		"Cache creation tokens (per 1M)": 3.74
	},
	"examples": [
		{
			"name": "Simple Question",
			"description": "Basic message request",
			"input": {
				"max_tokens": 512,
				"messages": [
					{
						"content": "The capital of France is",
						"role": "user"
					}
				]
			},
			"output": {
				"text": "The capital of France is **Paris**."
			},
			"raw_response": {
				"id": "msg_f3f0874570144f29add4272d4f07491d",
				"type": "message",
				"role": "assistant",
				"content": [
					{
						"type": "thinking",
						"thinking": "The user is asking \"The capital of France is\". This is a straightforward factual question. The capital of France is Paris. I should provide the answer clearly and concisely.",
						"signature": ""
					},
					{
						"type": "text",
						"text": "The capital of France is **Paris**."
					}
				],
				"model": "thinkingmachines/Inkling:peft:262144",
				"stop_reason": "end_turn",
				"usage": {
					"input_tokens": 0,
					"output_tokens": 52,
					"cache_creation_input_tokens": 19,
					"cache_read_input_tokens": 0
				}
			},
			"code_snippets": [
				{
					"label": "typescript",
					"language": "typescript",
					"code": "const response = await env.AI.run(\n  'thinkingmachines/inkling-256k',\n  { max_tokens: 512, messages: [{ content: 'The capital of France is', role: 'user' }] },\n)\nconsole.log(response)"
				},
				{
					"label": "curl",
					"language": "bash",
					"code": "curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/v1/messages \\\n  --header \"Authorization: Bearer $CLOUDFLARE_API_TOKEN\" \\\n  --header \"Content-Type: application/json\" \\\n  --data '{\n  \"model\": \"thinkingmachines/inkling-256k\",\n  \"max_tokens\": 512,\n  \"messages\": [\n    {\n      \"content\": \"The capital of France is\",\n      \"role\": \"user\"\n    }\n  ]\n}'"
				}
			]
		},
		{
			"name": "Tool Use",
			"description": "Tool use round-trip: the model requests a tool call, then answers using the tool_result supplied in a follow-up user message",
			"input": {
				"max_tokens": 1024,
				"messages": [
					{
						"content": "What's the weather in Paris?",
						"role": "user"
					},
					{
						"content": [
							{
								"id": "toolu_01A1x1x1x1x1x1x1x1x1x1x1",
								"input": {
									"city": "Paris"
								},
								"name": "get_weather",
								"type": "tool_use"
							}
						],
						"role": "assistant"
					},
					{
						"content": [
							{
								"content": "Sunny, 22\u00b0C",
								"tool_use_id": "toolu_01A1x1x1x1x1x1x1x1x1x1x1",
								"type": "tool_result"
							}
						],
						"role": "user"
					}
				],
				"tools": [
					{
						"description": "Get the current weather for a city.",
						"input_schema": {
							"properties": {
								"city": {
									"type": "string"
								}
							},
							"required": [
								"city"
							],
							"type": "object"
						},
						"name": "get_weather"
					}
				]
			},
			"output": {
				"text": "The weather in Paris is sunny with a temperature of 22\u00b0C."
			},
			"raw_response": {
				"id": "msg_5711f240c8da46eeb462f8900281d087",
				"type": "message",
				"role": "assistant",
				"content": [
					{
						"type": "thinking",
						"thinking": "The user asked for the weather in Paris. The function returned \"Sunny, 22\u00b0C\". I should provide a clear, concise answer.",
						"signature": ""
					},
					{
						"type": "text",
						"text": "The weather in Paris is sunny with a temperature of 22\u00b0C."
					}
				],
				"model": "thinkingmachines/Inkling:peft:262144",
				"stop_reason": "end_turn",
				"usage": {
					"input_tokens": 0,
					"output_tokens": 49,
					"cache_creation_input_tokens": 95,
					"cache_read_input_tokens": 0
				}
			},
			"code_snippets": [
				{
					"label": "typescript",
					"language": "typescript",
					"code": "const response = await env.AI.run(\n  'thinkingmachines/inkling-256k',\n  {\n    max_tokens: 1024,\n    messages: [\n      { content: \"What's the weather in Paris?\", role: 'user' },\n      {\n        content: [\n          {\n            id: 'toolu_01A1x1x1x1x1x1x1x1x1x1x1',\n            input: { city: 'Paris' },\n            name: 'get_weather',\n            type: 'tool_use',\n          },\n        ],\n        role: 'assistant',\n      },\n      {\n        content: [\n          {\n            content: 'Sunny, 22\u00b0C',\n            tool_use_id: 'toolu_01A1x1x1x1x1x1x1x1x1x1x1',\n            type: 'tool_result',\n          },\n        ],\n        role: 'user',\n      },\n    ],\n    tools: [\n      {\n        description: 'Get the current weather for a city.',\n        input_schema: {\n          properties: { city: { type: 'string' } },\n          required: ['city'],\n          type: 'object',\n        },\n        name: 'get_weather',\n      },\n    ],\n  },\n)\nconsole.log(response)"
				},
				{
					"label": "curl",
					"language": "bash",
					"code": "curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/v1/messages \\\n  --header \"Authorization: Bearer $CLOUDFLARE_API_TOKEN\" \\\n  --header \"Content-Type: application/json\" \\\n  --data '{\n  \"model\": \"thinkingmachines/inkling-256k\",\n  \"max_tokens\": 1024,\n  \"messages\": [\n    {\n      \"content\": \"What'\\''s the weather in Paris?\",\n      \"role\": \"user\"\n    },\n    {\n      \"content\": [\n        {\n          \"id\": \"toolu_01A1x1x1x1x1x1x1x1x1x1x1\",\n          \"input\": {\n            \"city\": \"Paris\"\n          },\n          \"name\": \"get_weather\",\n          \"type\": \"tool_use\"\n        }\n      ],\n      \"role\": \"assistant\"\n    },\n    {\n      \"content\": [\n        {\n          \"content\": \"Sunny, 22\u00b0C\",\n          \"tool_use_id\": \"toolu_01A1x1x1x1x1x1x1x1x1x1x1\",\n          \"type\": \"tool_result\"\n        }\n      ],\n      \"role\": \"user\"\n    }\n  ],\n  \"tools\": [\n    {\n      \"description\": \"Get the current weather for a city.\",\n      \"input_schema\": {\n        \"properties\": {\n          \"city\": {\n            \"type\": \"string\"\n          }\n        },\n        \"required\": [\n          \"city\"\n        ],\n        \"type\": \"object\"\n      },\n      \"name\": \"get_weather\"\n    }\n  ]\n}'"
				}
			]
		}
	],
	"default_example": null,
	"code_snippets": [],
	"supports_async": false,
	"zdr": false,
	"zdr_comment": null,
	"external_info": "https://huggingface.co/thinkingmachines/Inkling",
	"terms": null,
	"cover_image_url": null,
	"metadata": {
		"Architecture": "Mixture-of-Experts (MoE)",
		"Thinking": "Yes"
	},
	"request_formats": [
		"anthropic-messages"
	],
	"providers": null,
	"provider_details": [
		{
			"id": "thinkingmachines",
			"pricing": {
				"input_tokens": 3.74,
				"output_tokens": 9.36,
				"input_cached_tokens": 0.748,
				"input_cache_creation_tokens": 3.74
			}
		}
	],
	"banner": null,
	"created_at": "2026-07-21 22:12:27",
	"schema": {
		"input": {
			"$schema": "https://json-schema.org/draft/2020-12/schema",
			"type": "object",
			"properties": {
				"messages": {
					"type": "array",
					"items": {
						"type": "object",
						"properties": {
							"role": {
								"type": "string",
								"enum": [
									"user",
									"assistant",
									"system"
								]
							},
							"content": {
								"anyOf": [
									{
										"type": "string"
									},
									{
										"type": "array",
										"items": {
											"type": "object",
											"properties": {
												"type": {
													"type": "string"
												},
												"text": {
													"type": "string"
												},
												"source": {},
												"cache_control": {
													"type": "object",
													"properties": {
														"type": {
															"type": "string",
															"const": "ephemeral"
														},
														"ttl": {
															"type": "string",
															"enum": [
																"5m",
																"1h"
															]
														}
													},
													"required": [
														"type"
													],
													"additionalProperties": false
												}
											},
											"required": [
												"type"
											],
											"additionalProperties": {}
										}
									}
								]
							}
						},
						"required": [
							"role",
							"content"
						],
						"additionalProperties": false
					}
				},
				"max_tokens": {
					"type": "number",
					"exclusiveMinimum": 0
				},
				"system": {
					"anyOf": [
						{
							"type": "string"
						},
						{
							"type": "array",
							"items": {
								"type": "object",
								"properties": {
									"type": {
										"type": "string",
										"const": "text"
									},
									"text": {
										"type": "string"
									},
									"cache_control": {
										"type": "object",
										"properties": {
											"type": {
												"type": "string",
												"const": "ephemeral"
											},
											"ttl": {
												"type": "string",
												"enum": [
													"5m",
													"1h"
												]
											}
										},
										"required": [
											"type"
										],
										"additionalProperties": false
									}
								},
								"required": [
									"type",
									"text"
								],
								"additionalProperties": {}
							}
						}
					]
				},
				"temperature": {
					"type": "number",
					"minimum": 0,
					"maximum": 1
				},
				"top_p": {
					"type": "number",
					"minimum": 0,
					"maximum": 1
				},
				"top_k": {
					"type": "number",
					"exclusiveMinimum": 0
				},
				"stream": {
					"type": "boolean"
				},
				"metadata": {
					"type": "object",
					"propertyNames": {
						"type": "string"
					},
					"additionalProperties": {}
				}
			},
			"required": [
				"messages",
				"max_tokens"
			],
			"additionalProperties": {}
		},
		"output": {
			"$schema": "https://json-schema.org/draft/2020-12/schema",
			"type": "object",
			"properties": {
				"id": {
					"type": "string"
				},
				"type": {
					"type": "string",
					"const": "message"
				},
				"role": {
					"type": "string",
					"const": "assistant"
				},
				"content": {
					"type": "array",
					"items": {
						"type": "object",
						"properties": {
							"type": {
								"type": "string"
							},
							"text": {
								"type": "string"
							}
						},
						"required": [
							"type"
						],
						"additionalProperties": {}
					}
				},
				"model": {
					"type": "string"
				},
				"stop_reason": {
					"type": [
						"string",
						"null"
					]
				},
				"usage": {
					"type": "object",
					"properties": {
						"input_tokens": {
							"type": "number"
						},
						"output_tokens": {
							"type": "number"
						},
						"cache_creation_input_tokens": {
							"type": "number"
						},
						"cache_read_input_tokens": {
							"type": "number"
						}
					},
					"required": [
						"input_tokens",
						"output_tokens"
					],
					"additionalProperties": false
				}
			},
			"required": [
				"id",
				"type",
				"role",
				"content",
				"model",
				"stop_reason",
				"usage"
			],
			"additionalProperties": {}
		}
	}
}