Anthropic · Claude 3 family
Claude 3 API cost calculator
Anthropic’s Claude 3 family spans fast Haiku models, balanced Sonnet tiers, and premium Opus for the hardest tasks. This page helps engineers translate those names into dollars using the same per-thousand-token mechanics as the rest of the site.
You will see how Sonnet-class pricing behaves on realistic prompt and completion mixes, when Haiku is the right economic choice, and how to discuss context-heavy prompts with finance.
Use the calculator block to mirror your production token histograms—especially if you are evaluating a migration from GPT models.
Claude 3 model lineup in budget terms
Haiku excels when you need high throughput for simpler tasks: triage, tagging, or rewriting short snippets. Sonnet is the default for customer-facing quality, and Opus is the “break glass” tier when errors are expensive.
Your FinOps story should include blended routing: most traffic on Haiku or Sonnet with selective escalation instead of running everything on the largest card.
Input vs output pricing for Claude APIs
Like other frontier providers, Anthropic typically charges more for output tokens than input tokens. Long assistant answers or verbose JSON therefore move invoices faster than adding a few hundred tokens to a system prompt.
Audit completion length by feature flag so product experiments do not silently double output tokens.
Context windows and long system prompts
Claude applications often carry detailed policy or style guides. That is good for quality but costly if duplicated on every request. Centralize stable instructions and reference them consistently to maximize reusable prefix caching where your architecture allows.
Claude token usage examples
Each scenario is independent—pick the one closest to your service.
| Scenario | Prompt tokens | Output tokens | Model (est.) | Cost / request |
|---|---|---|---|---|
| Policy Q&A with citations | 4200 | 520 | Claude 3.5 Sonnet | $0.0204 |
| Ticket summarization | 900 | 240 | Claude 3.5 Haiku | $0.0017 |
| Research memo draft | 5500 | 1800 | Claude 3.5 Sonnet | $0.0435 |
Figures use rates from config/models.php; confirm against your provider before billing decisions.
Monthly Claude API cost examples
-
Customer support copilot
1,800 conversations per weekday with rich context.
- Per request
- $0.0153
- Monthly (1800 req/day × 22 days)
- $605.88
-
Internal knowledge assistant
650 heavier prompts per day.
- Per request
- $0.0375
- Monthly (650 req/day × 22 days)
- $536.25
Developer use cases
Claude shines when you need careful prose, long-context reasoning, or nuanced compliance answers. Pair it with Haiku for pre-processing pipelines that feed Sonnet the smallest possible cleaned input.
Claude vs configured OpenAI tiers
Use identical token assumptions—otherwise comparisons mislead leadership.
| Model | Provider | Input | Output |
|---|---|---|---|
| Claude 3.5 Sonnet | Anthropic | $0.0030 / 1K in | $0.0150 / 1K out |
| Claude 3.5 Haiku | Anthropic | $0.0008 / 1K in | $0.0040 / 1K out |
| GPT-4o | OpenAI | $0.0025 / 1K in | $0.0100 / 1K out |
| GPT-4o mini | OpenAI | $0.0002 / 1K in | $0.0006 / 1K out |
FAQ: Claude 3 token pricing
Short answers mirror the structured data on this page for search engines and readers.
- How do I choose between Claude Sonnet and Haiku?
- Prototype both on logged tasks. If Haiku meets accuracy SLOs, deploy it widely and reserve Sonnet for escalations.
- Does Claude charge for cached prompts?
- Caching rules depend on Anthropic’s current offerings and your integration. Model any discount explicitly rather than assuming it into baseline estimates.
- What is the biggest hidden cost in Claude migrations?
- Recreating oversized prompts from GPT-era templates without revisiting verbosity. Re-measure tokens after migration.
- Can I compare Claude and GPT in one view?
- Yes—enable both in the comparison table with the same prompt and completion counts.