API price comparison · Updated
Claude Opus 5.5 costs $4.00 per million input tokens and $20.00 per million output tokens; Claude Sonnet 5.5 costs $2.00 and $10.00. For an agent task (80,000 input tokens, 60,000 of them cached, and 6,000 output), Claude Opus 5.5 costs $0.212 and Claude Sonnet 5.5 $0.106: Claude Opus 5.5 costs 2× as much.
Claude Sonnet 5.5 costs 50% less for this workload. Excludes cache writes, tools and taxes.
| Price | Claude Opus 5.5 | Claude Sonnet 5.5 |
|---|---|---|
| Model ID | claude-opus-5-5 | claude-sonnet-5-5 |
| Input | $4.00 | $2.00 |
| Cache read | $0.20 | $0.10 |
| Cache write | $5.00 | $2.50 |
| Output | $20.00 | $10.00 |
| Batch in / out | $2.00 / $10.00 | $1.00 / $5.00 |
| Long prompts | Same rate | Same rate |
| Scheduled change | None announced | None announced |
| Status | Available | Available |
Prices for each provider’s own API, from Anthropic’s pricing page. The lower price in each row is highlighted. Ganivra uses these same rates to price Claude Opus 5.5 and Claude Sonnet 5.5 calls.
Worked out from the prices above at standard rates, with no Batch discount. Long-prompt rates apply where a model has them.
| Request | Claude Opus 5.5 | Claude Sonnet 5.5 | Per 1,000 requests | Difference |
|---|---|---|---|---|
| Chat reply3,000 input tokens, 500 output | $0.022 | $0.011 | $22.00 / $11.00 | Claude Opus 5.5 costs 2× as much |
| Document summary30,000 input tokens, 1,500 output | $0.150 | $0.075 | $150 / $75.00 | Claude Opus 5.5 costs 2× as much |
| Agent task80,000 input tokens (60,000 cached), 6,000 output | $0.212 | $0.106 | $212 / $106 | Claude Opus 5.5 costs 2× as much |
| Long document300,000 input tokens, 2,000 output | $1.24 | $0.620 | $1,240 / $620 | Claude Opus 5.5 costs 2× as much |
Ganivra prices every Claude Opus 5.5 and Claude Sonnet 5.5 call you make and adds it up by customer, feature and workflow, next to what each customer pays. Switch a workflow and see what it did to each customer’s margin.
Per million tokens, Claude Opus 5.5 costs $4.00 input and $20.00 output, and Claude Sonnet 5.5 $2.00 input and $10.00 output. For an agent task (80,000 input tokens, 60,000 of them cached, and 6,000 output), Claude Opus 5.5 costs 2× as much: $212 against $106 per 1,000 tasks.
$4.00 input and $20.00 output per million tokens on Anthropic's API, with cached input at $0.20 and Batch at $2.00 input and $10.00 output. The rate is the same at any prompt length.
$2.00 input and $10.00 output per million tokens on Anthropic's API, with cached input at $0.10 and Batch at $1.00 input and $5.00 output. The rate is the same at any prompt length.
For a 300,000 input tokens, 2,000 output request, Claude Opus 5.5 costs $1.24 and Claude Sonnet 5.5 $0.620: Claude Opus 5.5 costs 2× as much. On Claude Opus 5.5, one rate at any prompt length; on Claude Sonnet 5.5, one rate at any prompt length.
Record what each call actually used, then price the same usage on both models. Ganivra does this from your recorded calls: it shows what each customer, feature and workflow would cost on Claude Opus 5.5 and on Claude Sonnet 5.5, next to what each customer pays you.
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