Claude 3.7 Sonnet vs Claude 3 Opus Comparison

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

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

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

Claude 3.7 Sonnet significantly outperforms across most benchmarks.

Thu Mar 19 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 3.7 Sonnet ($3.00/1M tokens) is 5.0x cheaper than Claude 3 Opus ($15.00/1M tokens).

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

Thu Mar 19 2026 • llm-stats.com

Claude 3.7 Sonnet

Input tokens$3.00

Output tokens$15.00

Best providerAnthropic

Claude 3 Opus

Input tokens$15.00

Output tokens$75.00

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 3.7 Sonnet

Input200,000 tokens

Output128,000 tokens

Claude 3 Opus

Input200,000 tokens

Output200,000 tokens

Thu Mar 19 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

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

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

Claude 3.7 Sonnet

Text

Images

Audio

Video

Claude 3 Opus

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 3.7 Sonnet

Proprietary

Closed source

Claude 3 Opus

Proprietary

Closed source

Release Timeline

When each model was launched

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

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

Claude 3.7 Sonnet

Feb 24, 2025

1.1 years ago

12mo newer

Claude 3 Opus

Feb 29, 2024

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