Claude Opus 5 vs Claude Sonnet 5
Claude Opus 5 and Claude Sonnet 5 are compared here as a decision page: who makes each product, how they relate in the catalog, and which official sources to check for current plans and capabilities. Both sit in Frontier models. Feature checkmarks and numeric scores are omitted unless they come from a first-party source.
Key differences
| Dimension | Claude Opus 5 | Claude Sonnet 5 |
|---|---|---|
| Product | Claude Opus 5 | Claude Sonnet 5 |
| Company | Anthropic | Anthropic |
| Category | Frontier models | Frontier models |
| Focus | General / coding / agents | General / coding / agents |
| Official site | Linked below | Linked below |
Specs and prices below come from the same sourced tables as the product pages. If a cell is empty, the vendor page could not be retrieved.
Pricing
Claude Opus 5
| Plan | Price | Billing | Notes |
|---|---|---|---|
| API input | $5 / 1M input tokens | usage | Per million input tokens. |
| API output | $25 / 1M output tokens | usage | Per million output tokens. |
Retrieved 2026-08-21 from claude.com/pricing. Confirm on the official page before buying — vendors change plans without notice.
Claude Sonnet 5
| Plan | Price | Billing | Notes |
|---|---|---|---|
| API input | $2 / 1M input tokens | usage | Per million input tokens. |
| API output | $10 / 1M output tokens | usage | Per million output tokens. |
Retrieved 2026-08-21 from claude.com/pricing. Confirm on the official page before buying — vendors change plans without notice.
Specifications
Claude Opus 5
- API price
- $5 / $25 per million input/output tokens
- Availability
- Claude API and Claude apps
- API price
- $5 input / $25 output per million tokens
- API id
- claude-opus-5
- Released
- 24 Jul 2026
- Fast mode
- About 2.5× default speed at 2× base price
Retrieved 2026-08-21 from claude.com/pricing.
Claude Sonnet 5
- API price
- $2 / $10 per million input/output tokens
- Availability
- Claude API and Claude apps
Retrieved 2026-08-21 from claude.com/pricing.
Best for
Claude Opus 5
Start here if you already work in Frontier models and this is the product you know. Confirm fit on the official site.
Claude Sonnet 5
Use the official site to see how Claude Sonnet 5 differs on models, plans, and workflow — not invented scores.
Continue
Sources
Product facts link out to first-party pages. Check the official source for the current details.