Anthropic
anthropic.com › claude › sonnet
Claude Sonnet 4.5
Pricing for Sonnet 4.5 starts at $3 per million input tokens and $15 per million output tokens, with up to 90% cost savings with prompt caching and 50% cost savings with batch processing. To learn more, check out our pricing page. To get started, simply use claude-sonnet-4-5 via the Claude API.
Claude Docs
platform.claude.com › docs › en › about-claude › pricing
Pricing - Claude Docs
5-minute cache write tokens are 1.25 times the base input tokens price · 1-hour cache write tokens are 2 times the base input tokens price · Cache read tokens are 0.1 times the base input tokens price · Claude models are available on AWS ...
Claude Sonnet 4.5 is now available in Cline
I saw support was added to Bedrock and then the commit was reverted, then a fix was made that excluded Bedrock. Is there a blocker to support 4.5 in Bedrock? More on reddit.com
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September 29, 2025Claude 4.5 Sonnet is here
Am I tripping or is this actually a pretty nice upgrade More on reddit.com
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July 2, 2025Sonnet 4.5 is good but the price.....
thats why I only use GPT 5. actually, GPT 5 one-shots a lot of things Sonnet needs like 40 tries. More on reddit.com
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August 28, 2025What's new in Claude Sonnet 4.5
I never doubted him. Lisan al-Gaib... More on reddit.com
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September 29, 2025How much does Claude Sonnet 4.5 cost?
For prompts ≤200K tokens: $3/M input, $15/M output. For prompts >200K tokens: $6/M input, $22.5/M output. Prompt caching offers additional savings (write: $3.75-7.50/M, read: $0.30-0.60/M). Same pricing as Sonnet 4.
leanware.co
leanware.co › insights › claude-sonnet-4-5-overview
Claude Sonnet 4.5: Features, Benchmarks & Pricing Guide (2025)
What is Claude Sonnet 4.5 used for?
Claude Sonnet 4.5 handles software development, agent workflows, and computer-use tasks. It's used for pull request generation, bug fixing, multi-step feature building, browser automation, security audits, financial analysis, legal document review, and research with long context. It integrates with tools like Cursor and GitHub Copilot.
leanware.co
leanware.co › insights › claude-sonnet-4-5-overview
Claude Sonnet 4.5: Features, Benchmarks & Pricing Guide (2025)
Where can I access Claude Sonnet 4.5?
Claude API (claude-sonnet-4-5), Claude.ai web interface, iOS/Android apps, Amazon Bedrock, Google Cloud Vertex AI, VS Code extension, and integrated in Cursor, Windsurf, and GitHub Copilot. Free tier available on Claude.ai.
leanware.co
leanware.co › insights › claude-sonnet-4-5-overview
Claude Sonnet 4.5: Features, Benchmarks & Pricing Guide (2025)
Videos
16:16
How I Got GPT-5 & Claude 4.5 Access for $0 — 40M Tokens + $200 ...
12:40
Sonnet 4.5 Is Here—And It’s a Beast at Coding - YouTube
15:53
Claude Opus 4.5: Speed, Cost & Quality After 70.1 Million Tokens ...
13:00
Claude Haiku 4.5 Is HALF the Cost of Sonnet 4 – But Can It Still ...
09:26
Claude Sonnet 4.5 is HERE + Claude Code Upgrades - YouTube
07:51
Claude Code 2.0 + Claude Sonnet 4.5 is Finally Out! - YouTube
Reddit
reddit.com › r/cline › claude sonnet 4.5 is now available in cline
r/CLine on Reddit: Claude Sonnet 4.5 is now available in Cline
September 29, 2025 -
Hey everyone! Claude Sonnet 4.5 just went live in Cline.
Same pricing as Sonnet 4 ($3/$15), 200k or 1M context window, but the behavior is noticeably different. The model is way more terse -- it skips the narration and just executes. Where Sonnet 4 would explain every step, 4.5 chains operations together and only speaks up when it needs clarification.
The big improvement is how it handles long tasks. It naturally maintains state files (progress.txt, implementation notes, test manifests) and picks up exactly where it left off across sessions.
This pairs well with Cline's Auto Compact and Focus Chain features. When context gets compressed, the model's state files provide additional continuity.
Model string: claude-sonnet-4-5-20250929
Full details: https://cline.bot/blog/claude-sonnet-4-5
Curious what the community thinks of the latest iteration of Claude Sonnet!
-Nick
Top answer 1 of 5
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I saw support was added to Bedrock and then the commit was reverted, then a fix was made that excluded Bedrock. Is there a blocker to support 4.5 in Bedrock?
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Very good post. I clearly noticed how it wastes less tokens. Same token price, less cost overall. Very good model. Hope they don't degrade it and rug pull.
Anthropic
anthropic.com › news › claude-sonnet-4-5
Introducing Claude Sonnet 4.5
We recommend upgrading to Claude Sonnet 4.5 for all uses. Whether you’re using Claude through our apps, our API, or Claude Code, Sonnet 4.5 is a drop-in replacement that provides much improved performance for the same price. Claude Code updates are available to all users.
Cursor IDE
cursor-ide.com › blog › claude-sonnet-4-5-pricing
Claude Sonnet 4.5 Pricing Guide 2025: Complete Cost Analysis, Comparison & Calculator - Cursor IDE 博客
October 4, 2025 - Claude Sonnet 4.5 pricing starts at $3 per million input tokens and $15 per million output tokens, representing a cost-neutral upgrade from Claude Sonnet 4 while delivering significantly enhanced capabilities.
Medium
medium.com › data-science-in-your-pocket › claude-4-5-sonnet-bye-bye-software-devs-7c35c244e357
Claude 4.5 Sonnet : Bye bye Software Devs | by Mehul Gupta | Data Science in Your Pocket | Medium
September 30, 2025 - Claude Sonnet 4.5 is available everywhere now. Pricing stays the same as Sonnet 4, $3/$15 per million tokens through the Claude API.
Claude
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Claude
claude.com › pricing
Pricing | Claude
Explore Claude pricing plans and API costs. Choose from Free, Pro, Max, Team, or Enterprise options to get started with Claude.
LLM Stats
llm-stats.com › home › models › claude sonnet 4.5
Claude Sonnet 4.5: Pricing, Context Window, Benchmarks, and More
September 29, 2025 - A comprehensive look at Claude Sonnet 4.5 - pricing, context window, API details, benchmarks, safety improvements, and what it means for developers and enterprises. Could this be the best AI for coding?
Leanware
leanware.co › insights › claude-sonnet-4-5-overview
Claude Sonnet 4.5: Features, Benchmarks & Pricing Guide (2025)
We enjoy working with Leanware’s team.
TLDR: Claude Sonnet 4.5 scores 77.2% on SWE-bench Verified (82.0% with parallel compute), 50.0% on Terminal-Bench, and 61.4% on OSWorld. It reaches 100% on AIME with Python and 83.4% on GPQA Diamond. Pricing is $3 per million input tokens and $15 per million output tokens; you can use it on ... Leanware has a good working process and iterates on the product quickly, adapting to the client’s methodologies. The team is accommodating with the timeline and communicates effectively through thrice-weekly phone calls, Slack, and reports. Their flexibility has made them an excellent partner. Comprehen
Cline
cline.bot › blog › claude-sonnet-4-5
Anthropic's Claude Sonnet 4.5 is Live in Cline - Cline Blog
The model is available now in Cline as claude-sonnet-4.5.
Claude
docs.claude.com › en › docs › about-claude › pricing
Pricing - Claude Docs
October 16, 2025 - Cache read tokens are 0.1 times the base input tokens price · Claude models are available on AWS Bedrock, Google Vertex AI, and Microsoft Foundry. For official pricing, visit: ... Regional endpoint pricing for Claude 4.5 models and beyondStarting with Claude Sonnet 4.5 and Haiku 4.5, AWS Bedrock ...
Portkey
portkey.ai › blog › claude-sonnet-4-5-vs-gpt-5
Claude Sonnet 4.5 vs GPT-5: performance, efficiency, and pricing compared.
October 1, 2025 - A head-to-head comparison of Claude Sonnet 4.5 and GPT-5, covering coding, reasoning, math, tool use, cost, and ecosystem integrations , with insights on where each model is best suited for enterprise use.
TechCrunch
techcrunch.com › home › anthropic launches claude sonnet 4.5, its best ai model for coding
Anthropic launches Claude Sonnet 4.5, its best AI model for coding | TechCrunch
September 29, 2025 - On Monday, Anthropic launched a new frontier model called Claude Sonnet 4.5, which it claims offers state-of-the-art performance on coding benchmarks.
Simon Willison
simonwillison.net › 2025 › Sep › 29 › claude-sonnet-4-5
Claude Sonnet 4.5 is probably the “best coding model in the world” (at least for now)
September 29, 2025 - The pricing is the same as the previous Sonnet: $3/million input tokens and $15/million output tokens. This remains significantly cheaper than Claude Opus—$15/$75—but still quite a bit more than GPT-5 and GPT-5-Codex, both at $1.25/$10.
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 - The Artificial Analysis Intelligence Index ranks it fourth globally at 61 points in reasoning mode, ahead of Gemini 2.5 Pro and Grok 4 Fast, though behind GPT-5 high’s 68 points. At $3 per million input tokens and $15 per million output tokens, ...
The New Stack
thenewstack.io › home › anthropic launches claude sonnet 4.5
Anthropic Launches Claude Sonnet 4.5 - The New Stack
September 29, 2025 - Obviously, for the time being, this is just an experiment to showcase the capabilities of Sonnet 4.5 — and is only available to users on Anthropic’s Claude Max plan for the next five days — but it does show where the industry might head in the not-so-distant future.
Apidog
apidog.com › blog › claude-sonnet-4-5-pricing
How Much Does Claude Sonnet 4.5 Cost?
September 30, 2025 - Explore Claude Sonnet 4.5 pricing in detail, from API rates at $3 per million input tokens to consumer plans. This Anthropic model leads in coding and reasoning benchmarks, offering value for developers.
Skywork
skywork.ai › home › claude sonnet 4.5 vs gpt-5: which ai model is better for developers?
Claude Sonnet 4.5 vs GPT-5: which AI model is better for developers? - Skywork ai
October 3, 2025 - Unlock the ultimate developer's guide: Claude Sonnet 4.5 vs GPT-5. This analysis compares features, performance, and applications to help you choose the superior AI model for your projects. Understand key differences in this Claude Sonnet 4.5 vs GPT-5 deep dive to make informed decisions for ...
Glbgpt
glbgpt.com › hub › how-much-does-claude-sonnet-4-5-cost-pricing-explained-clearly
How Much Does Claude Sonnet 4.5 Cost? Pricing Explained Clearly
2 weeks ago - Claude Sonnet 4.5 has no standalone subscription price. You can access it via Claude Pro for $20/month or through usage‑based API pricing.