Claude API Pricing 2026:
Claude 4 Opus, Sonnet & Haiku Cost Breakdown
Complete Anthropic Claude API pricing guide for 2026. Compare Claude 4 Opus vs Sonnet vs Haiku costs, see real-world examples, and find out how Claude compares to OpenAI GPT-4o on price and performance.
Anthropic Claude API Pricing Table 2026
| Model | Input (per 1M tokens) | Output (per 1M tokens) | Context Window |
|---|---|---|---|
| Claude Haiku 4.5 | $0.80 | $4.00 | 200K tokens |
| Claude Sonnet 4.6 | $3.00 | $15.00 | 200K tokens |
| Claude Opus 4.6 | $15.00 | $75.00 | 200K tokens |
| Claude Sonnet 4.6 (cached) | $0.30 | $15.00 | Prompt caching read |
Claude vs GPT-4o: Which Is Cheaper in 2026?
For most production workloads, Claude Haiku 4.5 is significantly cheaper than GPT-4o mini, while Claude Sonnet 4.6 competes directly with GPT-4o:
| Task | Claude Haiku 4.5 | GPT-4o mini | Claude Sonnet 4.6 | GPT-4o |
|---|---|---|---|---|
| 10M tokens/month | $8 | $1.50 | $30 | $25 |
| 100M tokens/month | $80 | $15 | $300 | $250 |
| 1B tokens/month | $800 | $150 | $3,000 | $2,500 |
GPT-4o mini is cheaper for simple tasks. But Claude Haiku 4.5 often delivers better instruction-following and longer coherent outputs, making it cost-effective despite the higher per-token price.
Claude's Key Pricing Advantages
1. Prompt Caching (90% discount on repeated content)
Claude's prompt caching is the most aggressive in the industry. Cache writes cost $3.75/M tokens (1.25x normal), but cache reads cost only $0.30/M — a 90% reduction vs standard input pricing. For RAG systems or apps with large system prompts, this is a game-changer.
2. 200K context window (standard)
All Claude models include a 200,000-token context window as standard. GPT-4o defaults to 128K. Processing entire codebases, books, or legal documents in one request is genuinely viable with Claude.
3. No per-request fees
Claude API charges only for tokens. There are no per-request fees, no seat licenses, and no monthly minimums for API access.
Claude API Free Tier
Anthropic offers a free tier for the Claude API:
- Free tier: Limited requests on Claude Haiku 4.5 (rate limited)
- Paid tier: Starts at $5 minimum, pay as you go
- No subscription required — pure usage-based billing
Best Claude Model for Each Use Case
- Claude Haiku 4.5 — High-volume chatbots, classification, quick Q&A, customer support at scale
- Claude Sonnet 4.6 — Coding assistants, content creation, complex analysis, agent tasks
- Claude Opus 4.6 — Research, nuanced writing, complex multi-step reasoning, strategic analysis
Frequently Asked Questions
How do I access the Claude API?
Sign up at console.anthropic.com, add a payment method, and get your API key. Access is immediate — no approval process required.
Does Anthropic offer volume discounts?
Yes, for enterprise customers spending $10,000+/month. Contact Anthropic's sales team for custom pricing.
Can I use Claude API for commercial products?
Yes. The Claude API can be used to build commercial SaaS products, internal tools, and customer-facing applications under Anthropic's usage policy.
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