Claude Sonnet 4.6 Thinking

The ai claude sonnet 4.6 thinking model balances advanced reasoning with efficiency. Powered by Anthropic, this claude sonnet 4.6 variant excels in coding and logical tasks using its native thinking process to minimize errors.

Modalities

Context

API Usage Examples

curl --request POST "https://gptproto.com/v1/chat/completions" \
  --header "Authorization: Bearer $GPTPROTO_API_KEY" \
  --header "Content-Type: application/json" \
  --data '{
    "model": "claude-sonnet-4-6-thinking",
    "messages": [
      {
        "role": "user",
        "content": "Hello"
      }
    ]
  }'

Claude Sonnet 4.6 Thinking pricing

Estimate a request with real work scenarios. GPTProto token pricing is 20% below official rates.

Cost calculator

Multi-turn agent with cached context.

Input tokens$2.4 / 1M$0.0036

Output tokens$12 / 1M$0.0096

Cache write tokens$3 / 1M$0.009

Cache read tokens$0.24 / 1M$0.006

Cost per request$0.0282

Top up

GPTProto vs official pricing.

Requests

You pay

20% off

$100

You receive$100.00

Save$25.00 (20%)vs Claude official

Related Models

All Models

Model					Input → Output
Claude Sonnet 4.6 ThinkingCurrent		1M	$2.40 / $12.00 per 1M	$3.00 / $0.24 per 1M	Input: TextInput: Document Output: Text
GLM 5.3		1.05M	$1.26 / $3.96 per 1M	— / $0.23 per 1M	Input: TextInput: ImageInput: Document Output: Text
Gemini 3.7 Flash		1.05M	$0.45 / $2.25 per 1M	— / $0.04 per 1M	Input: TextInput: ImageInput: Document Output: Text
Grok 4.6		500K	$1.20 / $3.60 per 1M	— / $0.30 per 1M	Input: TextInput: Image Output: Text
Qwen3.8 Max		1M	$1.80 / $5.40 per 1M	$2.25 / $0.23 per 1M	Input: TextInput: ImageInput: VideoInput: Document Output: Text
Claude Opus 5		1M	$4.00 / $20.00 per 1M	$5.00 / $0.40 per 1M	Input: TextInput: ImageInput: Document Output: Text
Gemini 3.6 Flash		1.05M	$0.45 / $2.25 per 1M	— / $0.04 per 1M	Input: TextInput: ImageInput: Document Output: Text
Gemini 3.5 Flash Lite		1.05M	$0.18 / $1.50 per 1M	$0.02 / $0.02 per 1M	Input: TextInput: ImageInput: Document Output: Text
Kimi K3		1.05M	$2.70 / $13.50 per 1M	$0.27 / $0.27 per 1M	Input: TextInput: ImageInput: Document Output: Text
GPT 5.6 Luna		1.05M	$0.16 / $0.96 per 1M	$0.20 / $0.02 per 1M	Input: TextInput: ImageInput: Document Output: Text
GPT 5.6 Terra		1.05M	$1.60 / $9.60 per 1M	$2.00 / $0.16 per 1M	Input: TextInput: ImageInput: Document Output: Text
GPT 5.6 Sol		1.05M	$4.00 / $24.00 per 1M	$5.00 / $0.40 per 1M	Input: TextInput: ImageInput: Document Output: Text
Grok 4.5		500K	$1.20 / $3.60 per 1M	$0.30 / $0.30 per 1M	Input: TextInput: Image Output: Text
Claude Sonnet 5		1M	$1.60 / $8.00 per 1M	$2.00 / $0.16 per 1M	Input: TextInput: Document Output: Text
MiniMax M3		1.05M	$0.48 / $0.96 per 1M	$0.10 / $0.10 per 1M	Input: TextInput: ImageInput: Document Output: Text
GLM 5.2		1.05M	$1.26 / $3.96 per 1M	$0.23 / $0.23 per 1M	Input: TextInput: ImageInput: Document Output: Text
Claude Fable 5		1M	$8.00 / $40.00 per 1M	$10.00 / $0.80 per 1M	Input: TextInput: Document Output: Text
Qwen3.7 Max		1M	$0.36 / $1.44 per 1M	$0.07 / $0.07 per 1M	Input: TextInput: Document Output: Text
Claude Opus 4.8 Thinking		1M	$4.00 / $20.00 per 1M	$5.00 / $0.40 per 1M	Input: TextInput: Document Output: Text
Claude Opus 4.8		1M	$4.00 / $20.00 per 1M	$5.00 / $0.40 per 1M	Input: TextInput: Document Output: Text
DeepSeek v4 Flash	—	1.05M	$0.44 / $1.32 per 1M	— / $0.01 per 1M	Input: Text Output: Text
DeepSeek v4 Pro	—	1.05M	$1.32 / $3.96 per 1M	— / $0.04 per 1M	Input: Text Output: Text
Grok 4.3		1M	$0.75 / $1.50 per 1M	$0.12 / $0.12 per 1M	Input: TextInput: Image Output: Text
Kimi K2.6		262K	$0.85 / $3.60 per 1M	$0.14 / $0.14 per 1M	Input: TextInput: Document Output: Text
Claude Opus 4.7 Thinking		1M	$4.00 / $20.00 per 1M	$5.00 / $0.40 per 1M	Input: TextInput: Document Output: Text
GLM 5.1		205K	$1.26 / $3.96 per 1M	$0.23 / $0.23 per 1M	Input: TextInput: Document Output: Text
DeepSeek v3.2		164K	$0.17 / $0.25 per 1M	$0.02 / $0.02 per 1M	Input: Text Output: Text
MiniMax M2.5		205K	$0.24 / $0.96 per 1M	$0.30 / $0.02 per 1M	Input: TextInput: Document Output: Text
Kimi K2.5		262K	$0.54 / $2.70 per 1M	$0.09 / $0.09 per 1M	Input: TextInput: Document Output: Text
Qwen Turbo		—	$0.04 / $0.18 per 1M	$0.009 / $0.009 per 1M	Input: Text Output: Text
Doubao Seed 1.6 Thinking (Build 250715)		262K	$0.10 / $0.97 per 1M	—	Input: TextInput: Image Output: Text
Doubao Seed 1.6 Thinking (Build 250615)		262K	$0.10 / $0.97 per 1M	—	Input: TextInput: Image Output: Text
Doubao Seed 1.6 Flash (Build 250615)		262K	$0.02 / $0.18 per 1M	—	Input: TextInput: Image Output: Text

ai claude sonnet 4.6 thinking Features

Key technical highlights of the ai claude sonnet 4.6 thinking model at GPTProto.com.

Native Chain-of-Thought

The ai generates internal reasoning tokens to reduce logical fallacies in math and coding by 30%.

200k Context Window

Process entire codebases or long legal documents in one ai request without losing track of details.

SOTA STEM Reasoning

Optimized for science and engineering, scoring in the 90th percentile on graduate-level benchmarks.

Agentic Planning

High stability in tool-calling loops with a 95% success rate on complex, multi-step ai agent tasks.

ai claude sonnet 4.6 thinking FAQ

Get answers about ai claude sonnet 4.6 thinking logic, pricing, and integration steps for your ai projects.

What is the ai claude sonnet 4.6 thinking model?

This ai model is a high-intelligence reasoning variant from Anthropic. It uses an internal 'thinking' process to handle complex logic, coding, and math. By generating reasoning tokens before the final answer, this ai tool achieves higher accuracy in multi-step problem solving compared to standard models. It maintains the cost-efficiency of the Sonnet tier while delivering flagship-level intelligence for your ai applications.

How does ai reasoning affect latency?

Because the ai claude sonnet 4.6 thinking model deliberates before responding, users should expect a latency increase of 2 to 8 seconds. This time allows the ai to explore logical paths and self-correct. While not ideal for low-latency chat, it is perfect for ai tasks where accuracy is more important than immediate response, such as legal auditing or complex codebase refactoring.

Does this ai model support multimodal inputs?

Yes, the ai claude sonnet 4.6 thinking model is fully multimodal. It can process and reason across images, PDFs, and technical documents. This makes it an exceptional ai tool for parsing dense charts, diagrams, and nested tables. Its spatial reasoning allows the ai to understand the context of visual data within a massive 200,000-token context window.

What are ai thinking tokens and how are they billed?

Thinking tokens are the internal reasoning steps the ai generates before your visible answer. In the ai claude sonnet 4.6 thinking model, these tokens are billed at the standard output rate of $15.00 per 1M tokens. Developers can set a 'budget_tokens' parameter to control how much thinking the ai performs, allowing you to balance intelligence depth with your specific ai project budget.

Is my ai data used for model training?

No. GPTProto.com enforces a strict zero-data-retention policy for all enterprise ai API calls. Your proprietary data and ai prompts are never used to train the underlying claude sonnet 4.6 or any other ai models. We prioritize data privacy and security, ensuring your ai workflows remain confidential and compliant with industry standards.

How do I migrate my ai apps to this model?

Migrating to ai claude sonnet 4.6 thinking is straightforward. If you use our OpenAI-compatible API, simply update your model name to 'claude-sonnet-4-6-thinking' and include the 'thinking' object in your request body. This allows you to set the reasoning budget and immediately start leveraging the advanced ai logic capabilities of the claude 4.6 series.

Guides, comparisons, and updates related to this model.

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