Data verified: Aug 15, 2026, 11:13 AM · Prices sourced from official provider pages. Verify current rates before production use.
Data verified: Aug 15, 2026, 11:13 AM · Prices sourced from official provider pages. Verify current rates before production use.
Price, context and performance head to head. Data synced from the provider catalog.
Cheaper
Claude Sonnet 5
Larger context
Tied
Faster
Claude Sonnet 5
Higher quality
Claude Opus 4.8
| Feature | Claude Opus 4.8 | Claude Sonnet 5 |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Tier | Flagship | Mid-tier |
| Input per 1M tokens | $5 | $2 |
| Output per 1M tokens | $25 | $10 |
| Cached input per 1M | $0.5 | $0.2 |
| Context window | 1M | 1M |
| Intelligence index | 57/100 | 55/100 |
| Coding index | 74/100 | 72/100 |
| Agentic index | 49/100 | 50/100 |
| GPQA Diamond | 1 | 1 |
| Tau-bench (airline) | 1 | 1 |
| Speed | Slow | Standard |
| Vision (image input) | Yes | Yes |
| Function calling | Yes | Yes |
| Batch API | No | No |
Enter how many requests per day you send with an average prompt (1K input + 1K output) and compare the monthly cost of both models.
Claude Sonnet 5 saves $54/mo vs Claude Opus 4.8
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We integrate Claude Opus 4.8 or Claude Sonnet 5 into your product with caching, observability and continuous evaluation — typically 40-80% cheaper than the obvious first pick.
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A token is the unit an AI model processes: usually between half a word and a full word. Rule of thumb: 1,000 tokens ≈ 750 English words. A 20-word sentence is about 26 tokens; a 300-word email is around 400. Models charge for input tokens (your prompt) and output tokens (their answer) separately.