Claude 3.5 Haiku vs Claude 3 Sonnet Comparison

Comparing Claude 3.5 Haiku and Claude 3 Sonnet across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

6 benchmarks

Claude 3.5 Haiku outperforms in 6 benchmarks (DROP, GPQA, HumanEval, MATH, MGSM, MMLU-Pro), while Claude 3 Sonnet is better at 0 benchmarks.

Claude 3.5 Haiku 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 3.5 Haiku costs less

For input processing, Claude 3.5 Haiku ($0.80/1M tokens) is 3.8x cheaper than Claude 3 Sonnet ($3.00/1M tokens).

For output processing, Claude 3.5 Haiku ($4.00/1M tokens) is 3.8x cheaper than Claude 3 Sonnet ($15.00/1M tokens).

In conclusion, Claude 3 Sonnet is more expensive than Claude 3.5 Haiku.*

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

Lowest available price from all providers
Thu Mar 19 2026 • llm-stats.com
Anthropic
Claude 3.5 Haiku
Input tokens$0.80
Output tokens$4.00
Best providerAWS Bedrock
Anthropic
Claude 3 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. Both models can generate responses up to 200,000 tokens.

Anthropic
Claude 3.5 Haiku
Input200,000 tokens
Output200,000 tokens
Anthropic
Claude 3 Sonnet
Input200,000 tokens
Output200,000 tokens
Thu Mar 19 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude 3 Sonnet supports multimodal inputs, whereas Claude 3.5 Haiku does not.

Claude 3 Sonnet can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude 3.5 Haiku

Text
Images
Audio
Video

Claude 3 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 3.5 Haiku

Proprietary

Closed source

Claude 3 Sonnet

Proprietary

Closed source

Release Timeline

When each model was launched

Claude 3.5 Haiku was released on 2024-10-22, while Claude 3 Sonnet was released on 2024-02-29.

Claude 3.5 Haiku is 8 months newer than Claude 3 Sonnet.

Claude 3.5 Haiku

Oct 22, 2024

1.4 years ago

7mo newer
Claude 3 Sonnet

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

Claude 3.5 Haiku

bedrock logo
AWS Bedrock
Input Price:Input: $0.80/1MOutput Price:Output: $4.00/1M
google logo
Google
Input Price:Input: $0.80/1MOutput Price:Output: $4.00/1M
anthropic logo
Anthropic
Input Price:Input: $1.00/1MOutput Price:Output: $5.00/1M

Claude 3 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
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Anthropic
Less expensive input tokens
Less expensive output tokens
Higher DROP score (83.1% vs 78.9%)
Higher GPQA score (41.6% vs 40.4%)
Higher HumanEval score (88.1% vs 73.0%)
Higher MATH score (69.4% vs 43.1%)
Higher MGSM score (85.6% vs 83.5%)
Higher MMLU-Pro score (65.0% vs 56.8%)
Anthropic
Supports multimodal inputs

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude 3.5 Haiku
Anthropic
Claude 3 Sonnet