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
16:16
How I Got GPT-5 & Claude 4.5 Access for $0 — 40M Tokens + $200 ...
r/ClaudeAI on Reddit: Introducing Claude Haiku 4.5: our latest ...
10:57
The $3 A Month AI Model That Outperforms Claude Sonnet 4 - YouTube
19:43
Claude Code with Sonnet 4.5 is actually incredible (with 1 exception) ...
08:18
How To Get Unlimited Claude Code Free.. (Better Then Cursor Trial) ...
06:54
How To Use Unlimited GPT-5 & Sonnet 4.5 For Free in 2025.. - YouTube
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)
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)
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)
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 costs $3 per million input tokens and $15 per million output tokens. Comprehensive guide covering API pricing, subscription plans, platform costs, optimization strategies, and enterprise contracts with detailed comparisons to GPT-4 and Gemini.
Claude Docs
platform.claude.com › docs › en › about-claude › pricing
Pricing - Claude Docs
For more information about batch ... 4.5 with the 1M token context window enabled, requests that exceed 200K input tokens are automatically charged at premium long context rates:...
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.
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
Claude
docs.claude.com › en › docs › about-claude › pricing
Pricing - Claude Docs
For more information about batch ... 4.5 with the 1M token context window enabled, requests that exceed 200K input tokens are automatically charged at premium long context rates:...
IntuitionLabs
intuitionlabs.ai › home › articles › claude pricing explained: subscription plans & api costs
Claude Pricing Explained: Subscription Plans & API Costs | IntuitionLabs
2 days ago - For example, the latest Claude Opus 4.5 model costs $5 per million input tokens and $25 per million output tokens in a normal request ([7]). The new Sonnet 4.5 model is cheaper per token ($3 input, $15 output for requests up to 200K tokens), though ...
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.
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 does not have a standalone subscription price. It is an AI model, not a paid plan. You can access Claude Sonnet 4.5 either through Claude Pro (USD $20/month) or via API usage with pay‑as‑you‑go, token‑based pricing.
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 - Anthropic’s published API list price for Sonnet 4.5 is approximately 3 per million input tokens and 15 per million output tokens, with batch and caching mechanisms that often cut effective costs by half or more for the right workload.
Heltar
heltar.com › blogs › claude-sonnet-model-charge-for-its-api-tokens
How does the Claude Sonnet 4.5 model charge for its API tokens? | Heltar
November 3, 2025 - The quick answer - Claude Anthropic Sonnet 4.5 charges the following price for 1 Million API tokens (given you use <200K tokens)Input - ..
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. Run Claude Sonnet 4.5 with API
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.
ClaudeLog
claudelog.com › home › claude pricing
Claude Pricing | ClaudeLog
Extended Context Pricing: For prompts exceeding 200K tokens, Claude Sonnet 4.5 uses higher rates ($6.00 input / $22.50 output per 1M tokens) to account for increased processing costs and latency.
Reddit
reddit.com › r/windsurf › wondering how much claude 4 sonnet w/ "api pricing" costs? here's your answer.
r/windsurf on Reddit: Wondering how much Claude 4 Sonnet w/ "API Pricing" costs? Here's your answer.
June 30, 2025 -
I ran a flow action on Claude 4 Sonnet (Thinking). It cost 🥁
A bit over 17 flow action credits. Oof!
Quantity of output was similar to Claude 3.7 Sonnet (Thinking) - which is 1.25 credits per flow action. Quality was better, not remarkably better but noticable if you paid close attention.
Worth it? No. Two calls to Claude 3.7 Sonnet (Thinking) would have resulted in the same output if not more. That's only 2.5 credits. And it would have taken the same amount of time, Claude 4 Sonnet (Thinking) is really slow right now.
Hope this helps!
My question for you: if you've tried Claude 4 Sonnet (Thinking) or any others BYOK, how's that cost you? Please let me know.
Top answer 1 of 8
10
First time I tried it it ate something like 70 credits in 2/3 minutes. It gave no useful output I had to stop it midway
2 of 8
5
I do use it sometimes, but only after 3.7 and 2.5 pro have failed to fix a bug or refactor something complex, multiple times. For me, 4 has been able to solve stuff that all other models have not. For reference: I use Windsurf for around 6hrs/day.
Costgoat
costgoat.com › pricing › claude-api
Claude API Pricing Calculator & Cost Guide (Dec 2025)
3 weeks ago - Calculate Claude API costs for all models per token and per month. Compare all 9 active models with batch & cache discounts. ... • Pay-per-token: Haiku 3 ($0.25/$1.25) • Sonnet 4.5 ($3/$15) • Opus 4.5 ($5/$25) per million tokens
Claude
claude.ai › public › artifacts › 437fbc16-4479-47e6-8f81-7b25c259fdfb
Claude
Claude 4 Sonnet Thinking: $3.00 input / $15.00 output / $0.30 cache read / $3.75 cache write per million tokens · Claude 4 Opus Thinking: $15.00 input / $75.00 output / $1.50 cache read / $18.75 cache write per million tokens · Gemini 2.5 Pro (all versions): $1.25 input / $10.00 output / ...
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.
CometAPI
cometapi.com › claude-sonnet-4-5-api
Claude Sonnet 4.5 API - CometAPI - All AI Models in One API
October 17, 2025 - Anthropic’s Claude Sonnet 4.5 is a 2025 update focused on long-duration autonomous work, stronger tool/computer use, tighter safety/alignment, and richer developer features (context editing, memory, in-chat code execution and file creation). Benchmarks and vendor tests emphasize large gains ...