Model Comparison

Claude 3.7 Sonnet vs Claude Haiku 4.5

Claude Haiku 4.5 has a slight edge in benchmark performance. Claude Haiku 4.5 is 3.0x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

5 benchmarks

Claude 3.7 Sonnet outperforms in 2 benchmarks (GPQA, MMMLU), while Claude Haiku 4.5 is better at 3 benchmarks (AIME 2025, SWE-Bench Verified, Terminal-Bench).

Claude Haiku 4.5 has a slight edge in benchmark performance.

Sun May 10 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Claude Haiku 4.5 costs less

For input processing, Claude 3.7 Sonnet ($3.00/1M tokens) is 3.0x more expensive than Claude Haiku 4.5 ($1.00/1M tokens).

For output processing, Claude 3.7 Sonnet ($15.00/1M tokens) is 3.0x more expensive than Claude Haiku 4.5 ($5.00/1M tokens).

In conclusion, Claude 3.7 Sonnet is more expensive than Claude Haiku 4.5.*

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

Lowest available price from all providers
Sun May 10 2026 • llm-stats.com
Anthropic
Claude 3.7 Sonnet
Input tokens$3.00
Output tokens$15.00
Best providerAnthropic
Anthropic
Claude Haiku 4.5
Input tokens$1.00
Output tokens$5.00
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 200,000 tokens. Claude 3.7 Sonnet can generate longer responses up to 128,000 tokens, while Claude Haiku 4.5 is limited to 64,000 tokens.

Anthropic
Claude 3.7 Sonnet
Input200,000 tokens
Output128,000 tokens
Anthropic
Claude Haiku 4.5
Input200,000 tokens
Output64,000 tokens
Sun May 10 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude 3.7 Sonnet and Claude Haiku 4.5 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 Haiku 4.5

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 Haiku 4.5

Proprietary

Closed source

Release Timeline

When each model was launched

Claude 3.7 Sonnet was released on 2025-02-24, while Claude Haiku 4.5 was released on 2025-10-15.

Claude Haiku 4.5 is 8 months newer than Claude 3.7 Sonnet.

Claude 3.7 Sonnet

Feb 24, 2025

1.2 years ago

Claude Haiku 4.5

Oct 15, 2025

6 months ago

7mo newer

Knowledge Cutoff

When training data ends

Claude Haiku 4.5 has a documented knowledge cutoff of 2025-02-01, while Claude 3.7 Sonnet's cutoff date is not specified.

We can confirm Claude Haiku 4.5's training data extends to 2025-02-01, but cannot make a direct comparison without Claude 3.7 Sonnet's cutoff date.

Claude 3.7 Sonnet

—

Claude Haiku 4.5

Feb 2025

Provider Availability

Claude 3.7 Sonnet is available from Anthropic, Bedrock, Google. Claude Haiku 4.5 is available from Anthropic.

Claude 3.7 Sonnet

anthropic logo
Anthropic
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M
bedrock logo
AWS Bedrock
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M
google logo
Google
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M

Claude Haiku 4.5

anthropic logo
Anthropic
Input Price:Input: $1.00/1MOutput Price:Output: $5.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Anthropic
Higher GPQA score (84.8% vs 73.0%)
Higher MMMLU score (86.1% vs 83.0%)
Anthropic
Less expensive input tokens
Less expensive output tokens
Higher AIME 2025 score (80.7% vs 54.8%)
Higher SWE-Bench Verified score (73.3% vs 70.3%)
Higher Terminal-Bench score (41.0% vs 35.2%)
AnthropicClaude 3.7 Sonnet
AnthropicClaude Haiku 4.5
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Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude 3.7 Sonnet
Anthropic
Claude Haiku 4.5

FAQ

Common questions about Claude 3.7 Sonnet vs Claude Haiku 4.5.

Which is better, Claude 3.7 Sonnet or Claude Haiku 4.5?

Claude Haiku 4.5 has a slight edge in benchmark performance. Claude 3.7 Sonnet is made by Anthropic and Claude Haiku 4.5 is made by Anthropic. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude 3.7 Sonnet compare to Claude Haiku 4.5 in benchmarks?

Claude 3.7 Sonnet scores MATH-500: 96.2%, IFEval: 93.2%, MMMLU: 86.1%, GPQA: 84.8%, TAU-bench Retail: 81.2%. Claude Haiku 4.5 scores Tau2 Retail: 83.2%, MMMLU: 83.0%, Tau2 Telecom: 83.0%, AIME 2025: 80.7%, SWE-Bench Verified: 73.3%.

Is Claude 3.7 Sonnet cheaper than Claude Haiku 4.5?

Claude Haiku 4.5 is 3.0x cheaper for input tokens. Claude 3.7 Sonnet costs $3.00/M input and $15.00/M output via anthropic. Claude Haiku 4.5 costs $1.00/M input and $5.00/M output via anthropic.

What are the context window sizes for Claude 3.7 Sonnet and Claude Haiku 4.5?

Claude 3.7 Sonnet supports 200K tokens and Claude Haiku 4.5 supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude 3.7 Sonnet and Claude Haiku 4.5?

Key differences include input pricing ($3.00 vs $1.00/M). See the full comparison above for benchmark-by-benchmark results.