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.
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.
Videos
33:17
Sonnet 4.5 is the best coding model in the world - YouTube
13:00
Claude Haiku 4.5 Is HALF the Cost of Sonnet 4 – But Can It Still ...
r/ClaudeAI on Reddit: Introducing Claude Haiku 4.5: our latest ...
18:56
Claude Sonnet 4.5 Is INSANE (Full Review + Real Examples) - YouTube
16:08
Claude Sonnet 4.5 AI Vibe Coding is INSANE (Sonnet 4.5 Code Fast ...
05:05
Claude Haiku 4.5 Is Here… And It’s BETTER Than Sonnet 4.5?! ...
How 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)
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.
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
5
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?
2 of 5
3
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.
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
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?
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.
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 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 Bedrock, Google Vertex AI, and Microsoft Foundry. For official pricing, visit: ... Starting with Claude Sonnet 4.5 and Haiku 4.5, AWS Bedrock and Google Vertex AI offer two endpoint types:
ClaudeLog
claudelog.com › home › claude pricing
Claude Pricing | ClaudeLog
Sonnet 4.5 Pricing: Claude Sonnet 4.5 maintains the same competitive pricing as Claude Sonnet 4 ($3.00 input / $15.00 output per 1M tokens) with no price increase, despite significant performance improvements and enhanced capabilities.
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
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.
Claude
docs.claude.com › en › docs › about-claude › pricing
Pricing - Claude Docs
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 and Google Vertex AI offer two endpoint types:
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.
CometAPI
cometapi.com › how-much-does-claude-sonnet-4-5-cost
How Much Does Claude Sonnet 4.5 Cost? - CometAPI - All AI Models in One API
October 14, 2025 - Claude Sonnet 4.5: 3 / 1M input**, **15 / 1M output (standard API). OpenAI GPT-4o (examples reported): approx 2.50 / 1M input**, **10 / 1M output. OpenAI GPT-5 (example public pricing for its flagship): approx 1.25 / 1M input**, **10 / 1M output ...
Helicone
helicone.ai › llm-cost › provider › anthropic › model › claude-sonnet-4-5-20250929
Anthropic claude-sonnet-4-5-20250929 Pricing Calculator | API Cost Estimation
Explore AI costs with our comprehensive Anthropic claude-sonnet-4-5-20250929 Pricing Calculator. Compare prices for 300+ models across 10+ providers, get accurate API pricing, token costs, and budget estimations.
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.
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 › @leucopsis › claude-sonnet-4-5-review-32516b15c1e0
Claude Sonnet 4.5 Review
October 2, 2025 - This strategy sparked a price war in late 2025, pressuring Anthropic to justify its premium. As of release, Sonnet 4.5’s pricing remained at $3 per million input and $15 per million output (identical to Claude 4).
Data Studios
datastudios.org › post › claude-opus-4-5-vs-claude-sonnet-4-5-full-report-and-comparison-of-features-performance-pricing-a
Claude Opus 4.5 vs Claude Sonnet 4.5: Full Report and Comparison of Features, Performance, Pricing and more
1 month ago - Claude Opus 4.5 is the premium model that carries a premium price, accessible mainly to paying users at higher tiers or via pay-per-use, intended for those willing to invest more for top performance on critical tasks. The reduction in Opus’s price compared to earlier makes it more accessible than before, but Sonnet remains the economical choice for routine usage.
OpenRouter
openrouter.ai › anthropic › claude-sonnet-4.5
Claude Sonnet 4.5 - API, Providers, Stats | OpenRouter
Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows. It delivers state-of-the-art performance on coding benchmarks such as SWE-bench Verified, with improvements across system design, code security, and specification adherence.