Claude Sonnet 4.5API Pricing

Claude API Pricing: Anthropic's 2026 Token Costs Explained

Anthropic's Claude family offers three tiers from the ultra-fast Haiku to the powerhouse Opus. Understanding the price-performance tradeoffs across tiers is key to controlling your AI spend.

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Free preview, Starter for the Auto lane, Teams for manual GPT, Claude, and Gemini Pro access. Add-on credits kick in after included plan tokens are used.

Start on cheap auto-routed models first, then move up only when your workload truly needs premium manual control.

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Why teams start here first
Free preview
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Starter
Auto lane only
Curated cheap model pool with no manual premium-model selection.
Teams
Premium when you need it
Manual GPT, Claude, and Gemini Pro access starts here.
Billing
Plan tokens first
Add-on credits only extend usage after included plan tokens are exhausted.
Anthropic API pricing (reference)

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

TierInput / 1M tokensOutput / 1M tokensContextNote
Claude Sonnet 4.5$2.50$10.00200K tokensBest balance of cost, speed, and intelligence. Strong at coding, analysis, and nuanced writing. Supports vision and tool use.
Claude Haiku 4.5$0.20$0.80200K tokensFastest and cheapest Claude model. Optimized for high-throughput tasks like classification, extraction, and simple chat.
Claude Opus 4.6$12.00$48.00200K tokensMost capable model in the Claude family. Excels at complex reasoning, long-form generation, and agentic workflows.
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
3
provider options for this model family
LLMWise scenario cost
$72.50/mo with LLMWise auto-routing - FAQ queries go to Haiku 4.5 at $1/$5 per 1M, complex ones stay on Sonnet
Customer support bot handling 25K messages/month (avg 600 input + 350 output tokens). 65% are FAQ-style questions, 35% need nuanced responses.
Savings result
42% savings - $630/year. The math: 16,250 FAQ calls on Haiku cost ~$19, 8,750 complex calls on Sonnet cost ~$53.50
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 setup
Single LLMWise key works with Claude, GPT-5.2, Gemini, and 6 more models
See Anthropic comparison
Create Anthropic Console account, generate key, configure billing
Billing model
Credit-based pay-per-use with transparent per-request costs and non-expiring paid credits
See Anthropic comparison
Monthly invoicing with usage-based pricing, $5 minimum deposit
Failover
Automatic failover to GPT-5.2 or Gemini within 300ms if Claude returns errors or times out
See Anthropic comparison
No built-in failover - Anthropic outages directly affect your app
Model switching
Swap model parameter in one line - unified request/response format across all providers
See Anthropic comparison
Different SDK methods, prompt adjustments, separate API key management
Rate limits
Pooled capacity across multiple providers - burst beyond single-provider limits
See Anthropic comparison
Tier-based: 60 RPM (free) to 4,000 RPM (Scale tier)
Free tier
20 free trial credits on signup - test Claude alongside every other model
See Anthropic comparison
$5 free credits for new accounts (limited time)
Cost example

Customer support bot handling 25K messages/month (avg 600 input + 350 output tokens). 65% are FAQ-style questions, 35% need nuanced responses.

LLMWise total
$72.50/mo with LLMWise auto-routing - FAQ queries go to Haiku 4.5 at $1/$5 per 1M, complex ones stay on Sonnet
You save
42% savings - $630/year. The math: 16,250 FAQ calls on Haiku cost ~$19, 8,750 complex calls on Sonnet cost ~$53.50
Optional: reference direct API cost

$125.00/mo sending everything to Claude Sonnet 4.5 ($37.50 input + $87.50 output)

Claude Sonnet 4.5 offers the best cost-to-quality ratio in Anthropic's lineup and edges out GPT-5.2 on price for most workloads. The real savings come from tiering: use Haiku 4.5 for simple tasks and reserve Sonnet for complex ones. LLMWise's auto-router handles this split automatically, and BYOK support means you can bring your Anthropic key while still getting failover and usage analytics.

Common questions

How much does Claude API cost per token in 2026?
Claude Sonnet 4.5 costs $2.50 per million input tokens and $10.00 per million output tokens. Haiku 4.5 is the budget option at $0.20/$0.80, while Opus 4.6 is the premium tier at $12.00/$48.00 per million tokens.
Is Claude cheaper than GPT-5?
Yes, for the mid-tier models. Claude Sonnet 4.5 ($2.50/$10.00 per 1M tokens) undercuts GPT-5.2 ($3.00/$12.00) by about 17%. At the budget tier, Claude Haiku 4.5 ($0.20/$0.80) is cheaper on input but slightly pricier on output compared to GPT-5.2 Mini ($0.30/$1.20).
What is the context window for Claude Sonnet 4.5?
All Claude 4.x models support a 200K token context window, which is approximately 150,000 words. This is smaller than GPT-5.2's 256K window but larger than most open-source alternatives. Prompt caching is available for repeated prefixes, reducing costs on long-context workloads.
Can I use Claude and GPT-5 with the same API key?
Not directly - Anthropic and OpenAI require separate accounts and API keys. However, LLMWise provides a single unified API key that routes to both Claude and GPT-5.2 (plus seven other models). You can also bring your own Anthropic and OpenAI keys and use them through LLMWise for failover and analytics.

Start on Auto, move up only when you need it

Free preview, Starter for the Auto lane, Teams for manual GPT, Claude, and Gemini Pro access. Add-on credits kick in after included plan tokens are used.

Start on cheap auto-routed models first, then move up only when your workload truly needs premium manual control.

Starter Auto laneTeams premium manual accessPlan tokens + add-ons
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