Anthropic · Pricing & cost calculator
Mid-2024 flagship still used heavily. Sonnet 4 is newer but similarly priced.
Input tokens
$0.00300
per 1,000 tokens
Output tokens
$0.01500
per 1,000 tokens
Context window
200,000
tokens max
Prices sourced from Anthropic's public API rate card. Last reviewed April 2026.
Drag the sliders. The math runs in your browser.
Per request
$0.012000
at 1,500/500 tokens
Monthly spend
$120
10,000 requests × $0.012000
Could save ~73% with a similar-quality alternative
Same workload at 1,500/500 tokens × 10,000 req/month: $120 → $32. ~4× cheaper on input.
TrackCost's gateway auto-detects which requests are safe to route to the cheaper model and flags the ones that need Claude 3.5 Sonnet's full capability. You stay in control — we surface the opportunity.
Claude 3.5 Sonnet costs $0.00300 per 1,000 input tokens and $0.01500 per 1,000 output tokens as of the current Anthropic API pricing.
Claude 3.5 Haiku is significantly cheaper than Claude 3.5 Sonnet (~4× cheaper on input) and often works fine for tasks that don't need Claude 3.5 Sonnet's full capability. TrackCost automatically suggests model downgrades where safe.
The three highest-leverage ways: (1) route requests to a cheaper model where possible, (2) cache identical requests so you don't pay twice for the same response, (3) set hard monthly budgets that block requests when exceeded. TrackCost automates all three at the gateway layer.
Claude 3.5 Sonnet supports up to 200,000 tokens of context. For comparison with other models, use the TrackCost savings calculator.