Claude Opus 5 vs Claude Sonnet 5
Side-by-side comparison of API pricing, specs, benchmarks, and capabilities
| Specification |
by Anthropic
|
Claude Sonnet 5Intro price
by Anthropic
|
|---|---|---|
| Overview | ||
| Status | Current flagship | Current mid tier |
| Released | Jul 24, 2026 | Jun 30, 2026 |
| Pricing per million tokens | ||
| Input | $5.00/Mtok | $2.00/Mtok |
| Output | $25.00/Mtok | $10.00/Mtok |
| Blended avg | $15.00/Mtok | $6.00/Mtok |
| Cached input | $0.500/Mtok | $0.200/Mtok |
| Specifications | ||
| Context window | 1M tokens | 1M tokens |
| Parameters | Proprietary | Proprietary |
| Speed (TPS) | — | — |
| Modalities | ||
| Input |
textimage
|
textimage
|
| Benchmarks source: Vellum LLM Leaderboard | ||
| Avg benchmark score | 77.8 | 81.5 |
| Perf / dollar | 5.2 | 13.6 |
| BrowseComp | 90.8 | 84.7 |
| Humanity's Last Exam | 64.7 | 57.4 |
| AutoBench | 26 | 13.5 |
| GPQA Diamond | — | 96.2 |
| SWE-Bench Verified | — | 85.2 |
| Terminal-Bench 2.1 | — | 80.4 |
| OSWorld-Verified | — | 81.2 |
| HumanEval | — | 85.2 |
| Independent composite scores each on its own scale — not part of the average above | ||
| AA Intelligence Index | 60.7 | 53.4 |
| AA Agentic Index | 55.3 | 46.7 |
| AA-Omniscience Index (−100–100) | 31.3 | 15.3 |
| GDPval-AA v2 | 1861.5 ELO | 1601.2 ELO |
| Providers | ||
| Available from |
Anthropic — $5.00/$25.00/Mtok
|
Anthropic — $2.00/$10.00/Mtok
|
Cost at scale
1M tokens · 50/50 input/output| Volume | Claude Opus 5 | Claude Sonnet 5 | Savings |
|---|---|---|---|
| 1M tokens | $15 | $6 | $9 (60%) |
| 10M tokens | $150 | $60 | $90 (60%) |
| 100M tokens | $1500 | $600 | $900 (60%) |
| 1000M tokens | $15000 | $6000 | $9000 (60%) |
The cheaper option here — Claude Sonnet 5 costs $6.00/Mtok blended on Anthropic.
Summary
Claude Opus 5 by Anthropic costs $5.00/Mtok input and $25.00/Mtok output, with a 1M-token context window. It supports text, image input.
Claude Sonnet 5 by Anthropic costs $2.00/Mtok input and $10.00/Mtok output, with a 1M-token context window. It supports text, image input.
On a blended cost basis, Claude Sonnet 5 is 60% cheaper than Claude Opus 5.
On benchmarks, Claude Sonnet 5 scores higher (81.5 vs 77.8) on average. In terms of value, Claude Sonnet 5 has better performance per dollar (13.6 vs 5.2).
Note: Pricing is per million tokens. Actual costs vary with usage patterns, prompt caching, and batch discounts. Always verify against official provider pricing pages.