Claude 3 Opus vs Claude 3.7 Sonnet Comparison

Comparing Claude 3 Opus and Claude 3.7 Sonnet across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Claude 3 Opus outperforms in 0 benchmarks, while Claude 3.7 Sonnet is better at 1 benchmark (GPQA).

Claude 3.7 Sonnet significantly outperforms across most benchmarks.

Mon Mar 16 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Claude 3.7 Sonnet costs less

For input processing, Claude 3 Opus ($15.00/1M tokens) is 5.0x more expensive than Claude 3.7 Sonnet ($3.00/1M tokens).

For output processing, Claude 3 Opus ($75.00/1M tokens) is 5.0x more expensive than Claude 3.7 Sonnet ($15.00/1M tokens).

In conclusion, Claude 3 Opus is more expensive than Claude 3.7 Sonnet.*

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

Lowest available price from all providers

Mon Mar 16 2026 • llm-stats.com

Claude 3 Opus

Input tokens$15.00

Output tokens$75.00

Best providerAnthropic

Claude 3.7 Sonnet

Input tokens$3.00

Output tokens$15.00

Best providerAnthropic

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Context Window

Maximum input and output token capacity

Both models have the same input context window of 200,000 tokens. Claude 3 Opus can generate longer responses up to 200,000 tokens, while Claude 3.7 Sonnet is limited to 128,000 tokens.

Claude 3 Opus

Input200,000 tokens

Output200,000 tokens

Claude 3.7 Sonnet

Input200,000 tokens

Output128,000 tokens

Mon Mar 16 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude 3 Opus and Claude 3.7 Sonnet support multimodal inputs.

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

Claude 3 Opus

Text

Images

Audio

Video

Claude 3.7 Sonnet

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 3 Opus

Proprietary

Closed source

Claude 3.7 Sonnet

Proprietary

Closed source

Release Timeline

When each model was launched

Claude 3 Opus was released on 2024-02-29, while Claude 3.7 Sonnet was released on 2025-02-24.

Claude 3.7 Sonnet is 12 months newer than Claude 3 Opus.

Claude 3 Opus

Feb 29, 2024

2.0 years ago

Claude 3.7 Sonnet

Feb 24, 2025

1.1 years ago

12mo newer

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 3 Opus is available from Anthropic, Bedrock, Google. Claude 3.7 Sonnet is available from Anthropic, Bedrock, Google. The availability of providers can affect quality of the model and reliability.