Anthropic Claude API Pricing & Model Reference
Official upstream pricing, prompt caching multipliers, batch discounts, and agentic session rates for the Anthropic Claude model family.
Official Provider Documentation: Anthropic Pricing | Anthropic Claude Models Overview | Anthropic Rate Limits & Billing
Overview & Gateway Architecture
This reference document details the upstream provider base pricing for the Anthropic Claude model family.
Operating as an enterprise AI gateway and developer enablement platform, the Valstorm AI Platform provides unified access to Claude models alongside comprehensive enterprise features:
- Intelligent Routing & Prompt Caching: Automatic cache breakpoint management (5m/1h writes) and context optimization.
- Agentic Runtimes & Tooling: Stateful execution environments, computer use orchestration, automated web search, and sandboxed code interpreters.
- Enterprise Governance: Granular multi-tenant metering, policy-based spend caps, audit logging, and single sign-on.
- Resilient Fallback Pipelines: Multi-region and multi-provider failover without client code changes.
Note: Base provider rates shown below represent upstream pass-through pricing in USD per 1 Million (1M) tokens / MTok unless specified otherwise.
1. Core Model Pricing
All rates are listed in USD per Million Tokens (MTok).
| Model Name | Model ID | Base Input | 5-Minute Cache Write (1.25x) | 1-Hour Cache Write (2.0x) | Cache Hit / Refresh (0.1x) | Base Output |
|---|---|---|---|---|---|---|
| Claude Fable 5 | claude-5-fable | $10.00 | $12.50 | $20.00 | $1.00 | $50.00 |
| Claude Mythos 5 (Limited) | claude-5-mythos | $10.00 | $12.50 | $20.00 | $1.00 | $50.00 |
| Claude Opus 5 | claude-5-opus | $5.00 | $6.25 | $10.00 | $0.50 | $25.00 |
| Claude Opus 4.8 | claude-4-8-opus | $5.00 | $6.25 | $10.00 | $0.50 | $25.00 |
| Claude Opus 4.7 | claude-4-7-opus | $5.00 | $6.25 | $10.00 | $0.50 | $25.00 |
| Claude Opus 4.6 | claude-4-6-opus | $5.00 | $6.25 | $10.00 | $0.50 | $25.00 |
| Claude Opus 4.5 | claude-4-5-opus | $5.00 | $6.25 | $10.00 | $0.50 | $25.00 |
| Claude Sonnet 5 | claude-5-sonnet | $3.00 | $3.75 | $6.00 | $0.30 | $15.00 |
| Claude Sonnet 4.6 | claude-4-6-sonnet | $3.00 | $3.75 | $6.00 | $0.30 | $15.00 |
| Claude Sonnet 4.5 | claude-4-5-sonnet | $3.00 | $3.75 | $6.00 | $0.30 | $15.00 |
| Claude Haiku 4.5 | claude-4-5-haiku | $1.00 | $1.25 | $2.00 | $0.10 | $5.00 |
| Claude Opus 4.1 (Deprecated) | claude-4-1-opus | $15.00 | $18.75 | $30.00 | $1.50 | $75.00 |
| Claude Haiku 3.5 (Retired) | claude-3-5-haiku | $0.80 | $1.00 | $1.60 | $0.08 | $4.00 |
2. Prompt Caching Architecture
Prompt caching drastically reduces latency and cost for long-context prompts, recurring system prompts, and multi-turn agent conversations.
| Cache Operation | Multiplier Relative to Base Input | Cache Time-to-Live (TTL) | Cost Efficiency Break-Even |
|---|---|---|---|
| 5-Minute Cache Write | 1.25x base input rate | 5 minutes | Pays off after 1 cache hit (90% savings per read) |
| 1-Hour Cache Write | 2.00x base input rate | 1 hour | Pays off after 2 cache hits |
| Cache Read (Hit) | 0.10x base input rate (90% discount) | Matches cache lifetime | Continuous 90% discount on recurring context |
3. Built-in Tools & Agentic Features
| Tool / Capability | Pricing Model | Usage Details & Metering |
|---|---|---|
| Web Search Tool | $10.00 / 1,000 searches | Search result tokens retrieved into the conversation context are billed as standard input tokens. |
| Web Fetch Tool | Free (no tool fee) | Standard input token rates apply to retrieved web page content. |
| Code Execution Tool | Free with Search/Fetch • Standalone: 1,550 free hrs/mo, then $0.05 / hr | Minimum 5 minutes execution time per container session. Free when bundled with Web Search / Web Fetch. |
| Computer Use (Beta) | Standard Token Rates | Adds ~466–499 system prompt tokens + 735 tool definition tokens. Screenshots billed at standard vision token rates. |