Claude Sonnet 4.5API Pricing

Anthropic API Pricing: Claude Models Cost Breakdown

Anthropic's Claude lineup spans from the lightning-fast Haiku to the premium Opus tier. The 15x price gap between tiers means intelligent routing can dramatically cut your bill without sacrificing quality where it matters.

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Credit-based pay-per-use with token-settled billing. No monthly subscription. Paid credits never expire.

Replace multiple AI subscriptions with one wallet that includes routing, failover, and optimization.

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Step 01Sign up in 10 secondsGet 20 free credits Step 02Open your dashboardCreate API key Step 03Send first requestRun a sample

Why teams start here first

No monthly subscription

Pay-as-you-go credits

Start with trial credits, then buy only what you consume.

Failover safety

Production-ready routing

Auto fallback across providers when latency, quality, or reliability changes.

Data control

Your policy, your choice

BYOK and zero-retention mode keep training and storage scope explicit.

Single API experience

One key, multi-provider access

Use Chat/Compare/Blend/Judge/Failover from one dashboard.

Anthropic API pricing (reference)

Kept as reference for model evaluation. LLMWise pricing shown below uses credit reserves plus token-settled billing.

Tier	Input / 1M tokens	Output / 1M tokens	Context	Note
Claude Opus 4.5	$15.00	$75.00	200K tokens	Anthropic's most capable model for complex reasoning, agentic workflows, and long-form generation. Legacy pricing tier - best reserved for tasks where maximum intelligence is critical.
Claude Sonnet 4.5	$3.00	$15.00	200K tokens	The sweet spot of the Claude family. Strong at coding, analysis, and nuanced writing with excellent cost-to-quality ratio. Supports vision, tool use, and extended thinking.
Claude Haiku 4.5	$1.00	$5.00	200K tokens	Fastest and most affordable Claude model. Optimized for high-throughput classification, extraction, summarization, and simple conversational tasks.

User-facing pricing uses credit reserves + token settlement

Evidence snapshot

Claude Sonnet 4.5 pricing analysis

Current Claude Sonnet 4.5 billing context: compare providers, then run the same workload on LLMWise for request-based credits.

LLMWise usage

Reserve by mode: Chat 1, Compare 2, Blend 4, Judge 5, Failover 1

minimum reserve credits by mode

Pricing tiers

provider options for this model family

LLMWise scenario cost

$152.25/mo with LLMWise auto-routing - simple queries fall back to Haiku 4.5, complex ones stay on Sonnet

25,000 API calls per month (avg 900 input + 450 output tokens each). 70% are simple queries, 30% require deep reasoning.

Savings result

36% savings - $1,008/year saved by automatically routing simple queries to Haiku when Sonnet-level quality is not needed

based on workload mix and routing auto-mode

Usage starts-to-finish

Example: Product support workload

If your team sends 20 support messages a day in Chat mode, the minimum reserve is around 600 credits each month (starts at 1 reserve credit/request). Final usage settles by model and token volume.

Workflow

20 req/day

Chat mode / starts at 1 reserve credit

Monthly estimate

~600+ credits

reserve floor before settlement

What you get

Predictable

same behavior, single model switch

Try this scenario in your dashboard

Why people use LLMWise

API key management

Single LLMWise API key accesses all Claude models plus GPT-5.2, Gemini, and 6 more providers

See Anthropic comparison

Create Anthropic Console account, generate key, configure billing and usage limits

Failover & reliability

Automatic failover to GPT-5.2 or Gemini within 300ms if Claude errors or times out - critical for production uptime

See Anthropic comparison

No built-in failover - Anthropic outages directly affect your application

Cost optimization

Auto-router analyzes each query and routes simple ones to Haiku, saving 60-80% on those calls

See Anthropic comparison

Developers must manually choose which Claude model to call for each request

Vendor lock-in

Unified API across all providers - switch from Claude to GPT-5.2 or Gemini by changing one parameter

See Anthropic comparison

Tied to Anthropic's SDK, message format, and billing - switching to OpenAI or Google requires a rewrite

Rate limits

Pooled capacity across multiple providers - burst beyond single-provider limits from day one

See Anthropic comparison

Tier-based: 60 RPM (free) to 4,000 RPM (Scale tier) - must apply for higher limits

Free tier

20 free trial credits on signup - test Claude against GPT-5.2, Gemini, and every other model side by side

See Anthropic comparison

$5 free credits for new accounts (limited availability)

Cost example

25,000 API calls per month (avg 900 input + 450 output tokens each). 70% are simple queries, 30% require deep reasoning.

LLMWise total

$152.25/mo with LLMWise auto-routing - simple queries fall back to Haiku 4.5, complex ones stay on Sonnet

You save

36% savings - $1,008/year saved by automatically routing simple queries to Haiku when Sonnet-level quality is not needed

Optional: reference direct API cost

$236.25/mo sending everything to Claude Sonnet 4.5 ($67.50 input + $168.75 output)

Anthropic's Claude models are among the strongest in the market, especially for coding and nuanced analysis. But the 15x price gap between Haiku and Opus means your routing strategy matters more than your model choice. LLMWise's auto-router automatically sends simple queries to Haiku 4.5 at a fraction of the cost while reserving Sonnet for tasks that need it. Add automatic failover to GPT-5.2 during Anthropic outages, and you get Claude's best-in-class quality with enterprise-grade reliability.

Common questions

How much does the Claude API cost per token?

Claude Sonnet 4.5 costs $3.00 per million input tokens and $15.00 per million output tokens. Haiku 4.5 is the budget option at $1.00/$5.00, while Opus 4.5 is the premium tier at $15.00/$75.00 per million tokens. For a typical 1,350-token request, Sonnet costs about $0.0095 per call.

Does Anthropic have a free tier?

Anthropic offers $5 in free credits for new Console accounts, but availability is limited and the credits expire. For ongoing free access, there is no production free tier. LLMWise gives you 20 free trial credits at signup, enough to test Claude alongside GPT-5.2, Gemini, and every other model before committing to a paid plan.

How does Claude API pricing compare to ChatGPT API pricing?

Claude Sonnet 4.5 ($3.00/$15.00 per 1M tokens) is priced similarly to GPT-5.2 ($3.00/$12.00) on input but is 25% more expensive on output. Claude Haiku 4.5 ($1.00/$5.00) is pricier than GPT-4o mini ($0.15/$0.60) but delivers significantly higher quality. The best value depends on your quality requirements and volume.

What is the cheapest Claude model?

Claude Haiku 4.5 at $1.00 per million input tokens and $5.00 per million output tokens is Anthropic's most affordable model. It handles classification, extraction, summarization, and simple chat well. For tasks that need more nuance, Sonnet 4.5 at $3.00/$15.00 offers a strong quality upgrade.

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Credit-based pay-per-use with token-settled billing. No monthly subscription. Paid credits never expire.

Replace multiple AI subscriptions with one wallet that includes routing, failover, and optimization.

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