Claude Opus 5 vs Claude Sonnet 5: Specs & Benchmark Comparison
| Characteristic | Claude Opus 5 | Claude Sonnet 5 |
|---|---|---|
| Company | Anthropic | Anthropic |
| Release Date | July 24, 2026 | June 30, 2026 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 1.0M | 1.0M |
| Context (output) | 128K | 64K |
| Input Price / 1M | $5.00 | $2.00 |
| Output Price / 1M | $25.00 | $10.00 |
| Average Score | 0.6 | 0.6 |
| Benchmarks | ||
| DeepSWE 1.1 | 0.7 | 0.5 |
| FrontierCode | 0.5 | 0.4 |
| AutomationBench | 0.3 | 0.1 |
| FrontierCode 1.1 | 0.5 | 0.4 |
| Humanity's Last Exam | 0.6 | 0.6 |
| BrowseComp | 0.9 | 0.8 |
| Legal Agent Benchmark | 0.1 | 0.1 |
| HealthBench Professional | 0.6 | 0.6 |
Visual Benchmark Comparison
Claude Opus 5
Claude Sonnet 5
DeepSWE 1.10.7 vs 0.5
0.7
0.5
FrontierCode0.5 vs 0.4
0.5
0.4
AutomationBench0.3 vs 0.1
0.3
0.1
FrontierCode 1.10.5 vs 0.4
0.5
0.4
Humanity's Last Exam0.6 vs 0.6
0.6
0.6
BrowseComp0.9 vs 0.8
0.9
0.8
Legal Agent Benchmark0.1 vs 0.1
0.1
0.1
HealthBench Professional0.6 vs 0.6
0.6
0.6
Verdict
Both models show equal results — the choice depends on your specific use case.
Overall Performance
Both models show comparable average scores: Claude Opus 5 — 0.6, Claude Sonnet 5 — 0.6.
API Cost
Claude Sonnet 5 is 2.5x cheaper: input $2.00/1M vs $5.00/1M tokens.
Context Window
Same context size: 1M tokens.
Recency
Claude Opus 5 is newer: released 7/24/2026 vs 6/30/2026.
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Frequently Asked Questions
Which is better for coding — Claude Opus 5 or Claude Sonnet 5?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Claude Opus 5 or Claude Sonnet 5?
Claude Sonnet 5 is cheaper for input: $2.00 per 1M tokens vs $5.00.
Which has a larger context window — Claude Opus 5 or Claude Sonnet 5?
Claude Opus 5 supports a larger context: 1,000,000 tokens vs 1,000,000.
The Claude Opus 5 and Claude Sonnet 5 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Claude Opus 5 or Claude Sonnet 5 page. See also the complete list of AI model comparisons.