Claude Sonnet 4.6 vs Claude Opus 4.5
Side-by-side API pricing comparison · Anthropic vs Anthropic
🏆
Claude Sonnet 4.6 is 66.7% cheaper on blended cost ($9.00 vs $15.00/Mtok)
Claude Sonnet 4.6
by Anthropic
Current mid tierInput
$3.00/Mtok
Output
$15.00/Mtok
✓ Cheaper
| Blended avg | $9.00/Mtok |
|---|---|
| Cached input | $0.300/Mtok |
| Context | 200K tokens |
| Modality | text, image |
| Parameters | Proprietary |
| Released | Jan 15, 2026 |
Claude Opus 4.5
by Anthropic
Current flagshipInput
$5.00/Mtok
Output
$25.00/Mtok
| Blended avg | $15.00/Mtok |
|---|---|
| Cached input | $0.500/Mtok |
| Context | 200K tokens |
| Modality | text, image |
| Parameters | Proprietary |
| Released | May 22, 2025 |
Cost at scale — 1M tokens (50/50 input/output)
| Volume | Claude Sonnet 4.6 | Claude Opus 4.5 | Savings |
|---|---|---|---|
| 1M tokens | $9 | $15 | $6 (40%) |
| 10M tokens | $90 | $150 | $60 (40%) |
| 100M tokens | $900 | $1500 | $600 (40%) |
| 1000M tokens | $9000 | $15000 | $6000 (40%) |
Summary
Claude Sonnet 4.6 by Anthropic costs $3.00/Mtok input and $15.00/Mtok output, with a 200K-token context window. It supports text, image input.
Claude Opus 4.5 by Anthropic costs $5.00/Mtok input and $25.00/Mtok output, with a 200K-token context window. It supports text, image input.
On a blended cost basis, Claude Sonnet 4.6 is 66.7% cheaper than Claude Opus 4.5.
Note: Pricing is per million tokens. Actual costs vary with usage patterns, prompt caching, and batch discounts. Always verify against official provider pricing pages.