MODELS / THINKINGMACHINES

Inkling 2 Small

Inkling 2 Small is Thinking Machines Lab’s second-generation multimodal Mixture-of-Experts model, with 594 billion total parameters and 17 billion active per token. It combines text and image understanding with controllable reasoning for coding, tool use, and professional…

START BUILDING COMPARE

TEXTREASONINGIMPLICIT-CACHINGTOOL-USEVISIONOPEN-WEIGHTSSTRUCTURED-OUTPUT

1.0M

CONTEXT WINDOW

262.1K

MAX OUTPUT TOKENS

$0.3

INPUT PRICE / 1M TOKENS

OUTPUT PRICE / 1M TOKENS

QUICKSTART

PROTOCOL:: OPENAI COMPATIBLE
STREAMING:: SUPPORTED

Call it in one request.

OpenAI-compatible: change the base URL, and the setup is complete.

curl https://enterprise.blackbox.ai/v1/chat/completions \
  -H "Authorization: Bearer $BLACKBOX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "blackboxai/thinkingmachines/inkling-2-small",
    "messages": [{ "role": "user", "content": "Hello!" }],
    "stream": true
  }'

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ.get("BLACKBOX_API_KEY"),
    base_url="https://enterprise.blackbox.ai/v1",
)

stream = client.chat.completions.create(
    model="blackboxai/thinkingmachines/inkling-2-small",
    messages=[{"role": "user", "content": "Hello!"}],
    stream=True,
)

for chunk in stream:
    print(chunk.choices[0].delta.content or "", end="", flush=True)

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: process.env.BLACKBOX_API_KEY,
  baseURL: 'https://enterprise.blackbox.ai/v1',
});

const stream = await client.chat.completions.create({
  model: 'blackboxai/thinkingmachines/inkling-2-small',
  messages: [{ role: 'user', content: 'Hello!' }],
  stream: true,
});

for await (const chunk of stream) {
  process.stdout.write(chunk.choices[0]?.delta?.content || '');
}

SPECIFICATIONS

CONTEXT:: 1.0M
PROVIDER:: THINKINGMACHINES
TYPE:: TEXT

The full spec sheet.

Context, pricing, modalities, routing, and deployment: everything Inkling 2 Small supports, in one table.

MODEL ID: blackboxai/thinkingmachines/inkling-2-small
DEVELOPED BY: Thinkingmachines
MODEL TYPE: Text
RELEASED: Nov 12, 2026
CONTEXT WINDOW: 1.0M
MAX OUTPUT TOKENS: 262.1K
INPUT MODALITIES: text, image
OUTPUT MODALITIES: text
INPUT PRICE: $0.3 / 1M tokens
OUTPUT PRICE: $1 / 1M tokens
CACHE READ: $0.03 / 1M tokens
REASONING: Supported
DATA RETENTION: Standard retention
DEDICATED DEPLOYMENT: Enterprise · single-tenant
SUPPORTED PARAMETERS: max_tokenstemperaturestoptoolstool_choicereasoninginclude_reasoningresponse_formatstructured_outputs

MODELS:: 2

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