HomeClaude Sonnet 4.5 (Thinking)
N/A
Model parameter quantity
Anthropic
Affiliated organization
Closed Source
License Type
September 29, 2025
Release time
Related figures
Model Introduction
The latest series of closed-source reasoning models released by Anthropic, which has shown significant breakthroughs in agent construction, computer usage, reasoning, and mathematical abilities.
Comprehensive score
Language dialogue
Knowledge reserve
Reasoning association
Mathematical calculation
Code writing
Command following
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Language comprehension ability
Capable of understanding complex contexts and generating logically coherent sentences, though occasionally off in tone control.
8.5
Knowledge coverage scope
Covers more than 200 specialized fields, integrating the latest research findings and cross-cultural knowledge in real time.
9.1
Reasoning ability
Unable to maintain coherent reasoning chains, often causing inverted causality or miscalculations.
5.0
Model comparison
Claude Sonnet 4.5 (Thinking) vs Qwen2.5-7B-Instruct
Like Qwen2, the Qwen2.5 language models support up to 128K tokens and can generate up to 8K tokens. They also maintain multilingual support for over 29 languages, including Chinese, English, French, Spanish, Portuguese, German, Italian, Russian, Japanese, Korean, Vietnamese, Thai, Arabic, and more.
Claude Sonnet 4.5 (Thinking) vs Hunyuan-T1-20250822
The deep reasoning model independently developed by Tencent adopts the version number hunyuan-t1-20250822.
Claude Sonnet 4.5 (Thinking) vs Spark-X1
The inference model Spark X1 released by iFlytek, on the basis of leading domestic mathematical tasks, benchmarks the performance of general tasks such as inference, text generation, and language understanding against OpenAI o1 and DeepSeek R1.
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Claude Opus 4.5 (Thinking)
The latest series of closed-source reasoning models released by Anthropic, which has shown significant breakthroughs in agent construction, computer usage, reasoning, and mathematical abilities.
Claude Sonnet 4.5 (Thinking)
The latest series of closed-source reasoning models released by Anthropic, which has shown significant breakthroughs in agent construction, computer usage, reasoning, and mathematical abilities.
Claude Haiku 4.5 (Thinking)
The latest series of closed-source reasoning models released by Anthropic, which has shown significant breakthroughs in agent construction, computer usage, reasoning, and mathematical abilities.
Claude Sonnet 4 (Thinking)
The latest hybrid inference model series released by Anthropic, which support better coding, function calling, and other features.
Claude 3.7 Sonnet (Thinking)
Claude 3.7 Sonnet Thinking is the Thinking version of the hybrid inference intelligent model Claude 3.7 Sonnet released by Anthropic. It has the most advanced encoding technology and significant improvements in content generation, data analysis, and planning.
Relevant documents
Anthropic's experimental AI Claude completes negotiations and transactions in e-commerce test
As artificial intelligence advances rapidly, Anthropic quietly rolled out an internal experiment called "Project Deal" last Friday, showcasing AI's potential in e-commerce. The experiment had its AI model Claude autonomously handle buying, selling, a
DeepSeek Code poised for launch
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Musk’s Grok: 1.5 Trillion Parameters and Cursor Code Absorption—Game Changer or Bluff?
Elon Musk is finally making a move.In the AI programming race, OpenAI and Anthropic are accelerating, while xAI appears to be lagging. Musk has often stated his aim to rival Claude, yet despite multiple updates to the Grok4.X series, the results look
OpenAI Secretly Changes Charter to Make Removing Altman Harder
Following the 2023 coup-like incident, OpenAI has further solidified protections for CEO Sam Altman by updating its corporate bylaws. Recently released court documents reveal that Altman's position is now rock-solid, with substantially higher barrier
Meta AI now responds to buyer messages on Facebook Marketplace
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