← All models
Balanced — strong quality at a mid priceCommercial API
Claude Sonnet 5.5 Pricing
Anthropic · anthropic-claude-sonnet-5-5
Input / 1M tokens
$2.00
Output / 1M tokens
$10.00
Context window
1M tokens
≈ 1,333 pages of text
Max output
128k tokens
What it costs in practice
Typical request (1,200 in + 400 out tokens)$0.0064
1,000 requests / month$6.40/mo10,000 requests / month$64.00/mo100,000 requests / month$640.00/moEstimate your own workloadOpens the calculator with Claude Sonnet 5.5 preloaded — adjust volume and token counts there.
Price history
Only one price point recorded so far.
The staircase chart appears once a price change is detected.
What it excels at
Handles extended context and large outputs effectively for document analysis and multi-step coding tasks.
The business tradeoff
Output token pricing is elevated relative to input; performance on novel reasoning problems remains below top flagship variants.
Cheaper from Anthropic
Head-to-head
Vendor list rates, as of Sep 28, 2026 · source: openrouter · per-request examples assume 1,200 input + 400 output tokens.