Sonnet will forever be my boi. Answer from inventor_black on reddit.com
Anthropic
anthropic.com › news › claude-4
Introducing Claude 4
Claude Opus 4 and Sonnet 4 are hybrid models offering two modes: near-instant responses and extended thinking for deeper reasoning. The Pro, Max, Team, and Enterprise Claude plans include both models and extended thinking, with Sonnet 4 also available to free users.
Anthropic
anthropic.com › claude › sonnet
Claude Sonnet 4.5
For complex financial analysis—risk, structured products, portfolio screening—Claude Sonnet 4.5 with thinking delivers investment-grade insights that require less human review.
Videos
05:05
Claude Haiku 4.5 Is Here… And It’s BETTER Than Sonnet 4.5?! ...
04:17
Claude Sonnet 4.5: The Best Coding Model? Beats GPT-5 & Gemini ...
35:21
Qwen 3 Coder vs Claude 4 Sonnet | The only video you need! - YouTube
07:28
Hello Claude Sonnet 4.5! This thing is a BEAST! - YouTube
15:55
Claude 4.5! (30 Hours of Thinking!) - YouTube
33:17
Sonnet 4.5 is the best coding model in the world - YouTube
Reddit
reddit.com › r/claudeai › why i think claude sonnet 4 thinking is the best
r/ClaudeAI on Reddit: Why I think Claude Sonnet 4 Thinking is the best
June 20, 2025 -
After trying several Free version of several assistants (GitHub Copilot, ChatGPT, etc.), Claude Sonnet 4 Thinking 🙌 stands out for me as the best coding assistant so far. A few things that sold me:
Reasoning-first answers — it walks through why an approach works (or doesn’t), not just pastes code.
Multi-file context — it keeps track of project structure and gives consistent suggestions across files.
Refactor & tests — it suggests concise refactors and generates unit tests that actually catch edge-cases.
Debugging help — when I paste stack traces or failing tests it narrows the root cause quickly and suggests minimal fixes.
Readable style — produced code is readable and easy to adopt; less hand-holding required.
Not perfect — token limits and cost can be a factor for very large projects, and sometimes you still need to vet outputs. But for me the time saved + improved code quality outweighs those. Curious what others use for deep debugging or multi-file refactors.
Anyone else prefer Claude for coding? Why/why not?
Do you like this personally?
Top answer 1 of 9
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Sonnet will forever be my boi.
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Opus 4.1 continues to impress me each day. It's fast, great at refactoring, often fixes linter and TS errors induced by other models, and it produces very good mostly clean code, imo. It'll be interesting when Anthropic releases Sonnet 4.1 since it may surpass Opus' abilities in many ways.
Anthropic
anthropic.com › news › claude-sonnet-4-5
Introducing Claude Sonnet 4.5
For complex financial analysis—risk, structured products, portfolio screening—Claude Sonnet 4.5 with thinking delivers investment-grade insights that require less human review.
Artificial Analysis
artificialanalysis.ai › models › claude-4-sonnet-thinking
Claude 4 Sonnet - Intelligence, Performance & Price Analysis | Artificial Analysis
Analysis of Anthropic's Claude 4 Sonnet (Reasoning) and comparison to other AI models across key metrics including quality, price, performance (tokens per second & time to first token), context window & more.
Claude
docs.claude.com › en › docs › about-claude › models › whats-new-sonnet-4-5
What's new in Claude Sonnet 4.5 - Claude Docs
Extended thinking for optimal performance: Claude Sonnet 4.5 performs significantly better on coding tasks when extended thinking is enabled. Extended thinking is disabled by default, but we recommend enabling it for complex coding work.
AI SDK
ai-sdk.dev › cookbook › guides › claude-4
Guides: Get started with Claude 4
The code snippet below is all you ... capabilities first introduced in Claude 3.7 Sonnet—the ability to solve complex problems with careful, step-by-step reasoning....
The Neuron
theneuron.ai › explainer-articles › everything-to-know-about-claude-4-sonnet-4-opus-4-from-the-good-to-the-bad-and-the-mid
Everything to know about Claude 4 (Sonnet 4, Opus 4), from the Good, to the Bad, and the REAL weird... | The Neuron
Both Opus 4 and Sonnet 4 are "hybrid reasoning models" with two modes. Claude 4 has two modes, depending on what you need: near-instant responses and an "extended thinking" mode for deeper, multi-step reasoning.
Reddit
reddit.com › r/claudeai › claude opus 4 and claude sonnet 4 officially released
r/ClaudeAI on Reddit: Claude Opus 4 and Claude Sonnet 4 officially released
May 22, 2025 -
Source: Code with Claude Opening Keynote
Top answer 1 of 5
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we’ve significantly reduced behavior where the models use shortcuts or loopholes to complete tasks. Both models are 65% less likely to engage in this behavior than Sonnet 3.7 on agentic tasks that are particularly susceptible to shortcuts and loopholes. This is a very welcome improvement.
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“Opus consumes usage limits faster than other models” Although it’s well-known, seeing this explicitly written out makes me kinda nervous for usage limits
Claude Docs
platform.claude.com › docs › en › about-claude › models › whats-new-claude-4-5
What's new in Claude 4.5 - Claude Docs
Claude Opus 4.5 automatically preserves all previous thinking blocks throughout conversations, maintaining reasoning continuity across extended multi-turn interactions and tool use sessions.
Poe
poe.com › Claude-Sonnet-4.5
Claude-Sonnet-4.5 - Poe
Claude Sonnet 4.5 represents a major leap forward in AI capability and alignment. It is the most advanced model released by Anthropic to date, distinguished by dramatic improvements in reasoning, mathematics, and real-world coding. Supports 1m tokens of context.
The Verge
theverge.com › news › ai › tech
Anthropic’s Claude 4 AI models are better at coding and reasoning | The Verge
May 22, 2025 - Image: Anthropic · A new feature introduced for both Claude 4 models is “thinking summaries,” which condenses the chatbots’ reasoning process into easily understandable insights.
Google Cloud
cloud.google.com › blog › products › ai-machine-learning › anthropics-claude-opus-4-and-claude-sonnet-4-on-vertex-ai
Anthropic’s Claude Opus 4 and Claude Sonnet 4 on Vertex AI | Google Cloud Blog
May 23, 2025 - Today, we're expanding the choice ... Claude Opus 4 and Claude Sonnet 4. Both Claude Opus 4 and Claude Sonnet 4 are hybrid reasoning models, meaning they offer modes for near-instant responses and extended thinking for deeper reasoning....
DataCamp
datacamp.com › blog › claude-4
Claude 4: Tests, Features, Access, Benchmarks & More | DataCamp
May 23, 2025 - For comparison, Gemini 2.5 Pro (Google’s flagship model) has a context window of 1M tokens. It’s also capable of running in “extended thinking” mode, where it switches from fast responses to slower, more deliberate reasoning.
Poe
poe.com › Claude-Sonnet-4
Claude-Sonnet-4 - Poe
Claude Sonnet 4 from Anthropic, supports customizable thinking budget (up to 30k tokens) and 1m context window. To instruct the bot to use more thinking effort, add --thinking_budget and a number ranging from 0 to 30,768 to the end of your message.
Medium
medium.com › @leucopsis › claude-sonnet-4-and-opus-4-a-review-db68b004db90
Claude Sonnet 4 and Opus 4, a Review | by Barnacle Goose | Medium
May 29, 2025 - It offers “superior coding and reasoning while responding more precisely to your instructions”, at a lower cost and faster speed than Opus 4. Both models introduce “hybrid reasoning” abilities — they can produce near-instant answers or engage an extended thinking mode for step-by-step reasoning on harder problems...
Cursor
forum.cursor.com › bug reports
Claude 4.5 Sonnet no longer thinking? - Bug Reports - Cursor - Community Forum
October 21, 2025 - Where does the bug appear (feature/product)? Cursor IDE Describe the Bug About…maybe, 40 minutes ago now, it appears that Claude 4.5 Sonnet Thinking, simply stopped thinking. I am still on the thinking version of the mo…
Medium
medium.com › @cognidownunder › claude-sonnet-4-5-4ddf33d53cd4
Claude Sonnet 4.5 Extended Thinking Explained: Can Code for 30 Hours Straight, But That’s Not the Scary Part | by Cogni Down Under | Medium
September 30, 2025 - Claude Sonnet 4.5 runs two distinct modes that fundamentally alter how we interact with code generation. Standard mode gives you near-instant responses like every other model you’ve used. Extended thinking mode opens a window into the machine’s mind.
n8n
n8n.io › workflows › 4399-anthropic-ai-agent-claude-sonnet-4-and-opus-4-with-think-and-web-search-tool
Anthropic AI Agent: Claude Sonnet 4 and Opus 4 with Think and Web Search tool | n8n workflow template
Claude Sonnet 4: Best for standard tasks like real-time workflow routing, data validation, and routine business logic. Claude Opus 4: Reserved for complex scenarios requiring deep reasoning, advanced analysis, or high-impact decisions.
AWS
docs.aws.amazon.com › amazon bedrock › user guide › amazon bedrock foundation model information › inference request parameters and response fields for foundation models › anthropic claude models › anthropic claude messages api › extended thinking
Extended thinking - Amazon Bedrock
This behavior is consistent whether using regular thinking or interleaved thinking. In older Claude models (prior to Claude 3.7 Sonnet), if the sum of prompt tokens and max_tokens exceeded the model’s context window, the system would automatically adjust max_tokens to fit within the context limit. This meant you could set a large max_tokens value and the system would silently reduce it as needed. With Claude 3.7 and 4 models, max_tokens (which includes your thinking budget when thinking is enabled) is enforced as a strict limit.