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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Use Chat/Compare/Blend/Judge/Failover from one dashboard.
Anthropic API pricing (reference)

Kept as reference for model evaluation. LLMWise pricing shown below is request-based credits.

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 is request-based, not per token
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
Chat 1, Compare 3, Blend 4, Judge 5, Failover 1
fixed credits per request
Pricing tiers
3
provider options for this model family
LLMWise scenario cost
$38.40/mo with LLMWise auto-routing (routes simple queries to Haiku 4.5)
10,000 chat messages per month (avg 800 input + 400 output tokens each)
Savings result
36% savings — $259/year saved by offloading straightforward queries to Haiku
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, you typically use around 600 credits each month (1 credit/request).

Workflow
20 req/day
Chat mode / 1 credit each
Monthly estimate
600 credits
before optional auto-topup
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 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
40 free trial credits on signup — test Claude alongside every other model
See Anthropic comparison
$5 free credits for new accounts (limited time)
Cost example

10,000 chat messages per month (avg 800 input + 400 output tokens each)

LLMWise total
$38.40/mo with LLMWise auto-routing (routes simple queries to Haiku 4.5)
You save
36% savings — $259/year saved by offloading straightforward queries to Haiku
Optional: reference direct API cost

$60.00/mo with Claude Sonnet 4.5 ($20.00 input + $40.00 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.

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You only pay credits per request. No monthly subscription. Paid credits never expire.

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

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Gemini 3 Flash PricingDeepSeek V3 PricingLlama 4 Maverick PricingGrok 3 PricingCheapest LLM API: Best Value AI Models for DevelopersGPT-5.2 Pricing