Model Comparison

Claude Sonnet 5 vs Claude Opus 4.7Which is better in 2026?

Claude Sonnet 5 has a slight edge in benchmark performance. Claude Sonnet 5 is 1.7x cheaper per token.

Verdict: Claude Sonnet 5 vs Claude Opus 4.7 — which is better?

Claude Sonnet 5 (by Anthropic) and Claude Opus 4.7 (by Anthropic) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Claude Sonnet 5 outperforms in 5 benchmarks (BrowseComp, GDPval-AA, Humanity's Last Exam, OSWorld-Verified, Terminal-Bench 2.0), while Claude Opus 4.7 is better at 4 benchmarks (CharXiv-R, Legal Agent Benchmark, SWE-Bench Pro, SWE-Bench Verified). Claude Sonnet 5 has a slight edge in benchmark performance.

On price, Claude Sonnet 5 is roughly 1.7x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Choose Claude Sonnet 5 if…

  • you want the strongest raw capability — it leads on 5 of 9 shared benchmarks
  • cost matters — it's about 1.7x cheaper per token
  • you want the most recent training data — it shipped Jun 2026

Choose Claude Opus 4.7 if…

  • you want predictable pricing at $5.00/M input and $25.00/M output

Performance Benchmarks

Comparative analysis across standard metrics

9 benchmarks

Claude Sonnet 5 outperforms in 5 benchmarks (BrowseComp, GDPval-AA, Humanity's Last Exam, OSWorld-Verified, Terminal-Bench 2.0), while Claude Opus 4.7 is better at 4 benchmarks (CharXiv-R, Legal Agent Benchmark, SWE-Bench Pro, SWE-Bench Verified).

Claude Sonnet 5 has a slight edge in benchmark performance.

Fri Jul 17 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Claude Sonnet 5 costs less

For input processing, Claude Sonnet 5 ($3.00/1M tokens) is 1.7x cheaper than Claude Opus 4.7 ($5.00/1M tokens).

For output processing, Claude Sonnet 5 ($15.00/1M tokens) is 1.7x cheaper than Claude Opus 4.7 ($25.00/1M tokens).

In conclusion, Claude Opus 4.7 is more expensive than Claude Sonnet 5.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Fri Jul 17 2026 • llm-stats.com
Anthropic
Claude Sonnet 5
Input tokens$3.00
Output tokens$15.00
Best providerAnthropic
Anthropic
Claude Opus 4.7
Input tokens$5.00
Output tokens$25.00
Best providerAnthropic
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Both models have the same input context window of 1,000,000 tokens. Claude Opus 4.7 can generate longer responses up to 128,000 tokens, while Claude Sonnet 5 is limited to 64,000 tokens.

Anthropic
Claude Sonnet 5
Input1,000,000 tokens
Output64,000 tokens
Anthropic
Claude Opus 4.7
Input1,000,000 tokens
Output128,000 tokens
Fri Jul 17 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude Sonnet 5 and Claude Opus 4.7 support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Claude Sonnet 5

Text
Images
Audio
Video

Claude Opus 4.7

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Claude Sonnet 5

Proprietary

Closed source

Claude Opus 4.7

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Sonnet 5 was released on 2026-06-30, while Claude Opus 4.7 was released on 2026-04-16.

Claude Sonnet 5 is 3 months newer than Claude Opus 4.7.

Claude Sonnet 5

Jun 30, 2026

2 weeks ago

2mo newer
Claude Opus 4.7

Apr 16, 2026

3 months ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

Claude Sonnet 5 is available from Anthropic. Claude Opus 4.7 is available from Anthropic, Vertex AI.

Claude Sonnet 5

anthropic logo
Anthropic
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M

Claude Opus 4.7

anthropic logo
Anthropic
Input Price:Input: $5.00/1MOutput Price:Output: $25.00/1M
vertex logo
Unknown Organization
Input Price:Input: $5.00/1MOutput Price:Output: $25.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Anthropic
Less expensive input tokens
Less expensive output tokens
Higher BrowseComp score (84.7% vs 79.3%)
Higher GDPval-AA score (53.9% vs 51.4%)
Higher Humanity's Last Exam score (57.4% vs 54.7%)
Higher OSWorld-Verified score (81.2% vs 78.0%)
Higher Terminal-Bench 2.0 score (80.4% vs 69.4%)
Anthropic
Higher CharXiv-R score (91.0% vs 88.3%)
Higher Legal Agent Benchmark score (7.1% vs 5.8%)
Higher SWE-Bench Pro score (64.3% vs 63.2%)
Higher SWE-Bench Verified score (87.6% vs 85.2%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Claude Sonnet 5 and Claude Opus 4.7 side-by-side, then vote on the output you prefer.

Claude Sonnet 5
✓ Preferred
Claude Opus 4.7
Open in Playground
AI Model Comparison Table
Feature
Anthropic
Claude Sonnet 5
Anthropic
Claude Opus 4.7

FAQ

Common questions about Claude Sonnet 5 vs Claude Opus 4.7.

Which is better, Claude Sonnet 5 or Claude Opus 4.7?

Claude Sonnet 5 has a slight edge in benchmark performance. Claude Sonnet 5 is made by Anthropic and Claude Opus 4.7 is made by Anthropic. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude Sonnet 5 compare to Claude Opus 4.7 in benchmarks?

Claude Sonnet 5 scores CharXiv-R: 88.3%, ChartMuseum: 86.7%, SWE-Bench Verified: 85.2%, BrowseComp: 84.7%, GDP.pdf: 81.6%. Claude Opus 4.7 scores GPQA: 94.2%, MMMLU: 91.5%, CharXiv-R: 91.0%, SWE-Bench Verified: 87.6%, BrowseComp: 79.3%.

Is Claude Sonnet 5 cheaper than Claude Opus 4.7?

Claude Sonnet 5 is 1.7x cheaper for input tokens. Claude Sonnet 5 costs $3.00/M input and $15.00/M output via anthropic. Claude Opus 4.7 costs $5.00/M input and $25.00/M output via anthropic.

What are the context window sizes for Claude Sonnet 5 and Claude Opus 4.7?

Claude Sonnet 5 supports 1.0M tokens and Claude Opus 4.7 supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude Sonnet 5 and Claude Opus 4.7?

Key differences include input pricing ($3.00 vs $5.00/M). See the full comparison above for benchmark-by-benchmark results.

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