Claude 3.5 Sonnet vs o1-preview Comparison

Comparing Claude 3.5 Sonnet and o1-preview across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

5 benchmarks

Claude 3.5 Sonnet outperforms in 2 benchmarks (MGSM, SWE-Bench Verified), while o1-preview is better at 3 benchmarks (GPQA, MATH, MMLU).

o1-preview has a slight edge in benchmark performance.

Mon Mar 23 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Claude 3.5 Sonnet costs less

For input processing, Claude 3.5 Sonnet ($3.00/1M tokens) is 5.0x cheaper than o1-preview ($15.00/1M tokens).

For output processing, Claude 3.5 Sonnet ($15.00/1M tokens) is 4.0x cheaper than o1-preview ($60.00/1M tokens).

In conclusion, o1-preview is more expensive than Claude 3.5 Sonnet.*

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

Lowest available price from all providers
Mon Mar 23 2026 • llm-stats.com
Anthropic
Claude 3.5 Sonnet
Input tokens$3.00
Output tokens$15.00
Best providerAnthropic
OpenAI
o1-preview
Input tokens$15.00
Output tokens$60.00
Best providerOpenAI
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Context Window

Maximum input and output token capacity

Claude 3.5 Sonnet accepts 200,000 input tokens compared to o1-preview's 128,000 tokens. Claude 3.5 Sonnet can generate longer responses up to 200,000 tokens, while o1-preview is limited to 32,768 tokens.

Anthropic
Claude 3.5 Sonnet
Input200,000 tokens
Output200,000 tokens
OpenAI
o1-preview
Input128,000 tokens
Output32,768 tokens
Mon Mar 23 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude 3.5 Sonnet supports multimodal inputs, whereas o1-preview does not.

Claude 3.5 Sonnet can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude 3.5 Sonnet

Text
Images
Audio
Video

o1-preview

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 Sonnet

Proprietary

Closed source

o1-preview

Proprietary

Closed source

Release Timeline

When each model was launched

Claude 3.5 Sonnet was released on 2024-10-22, while o1-preview was released on 2024-09-12.

Claude 3.5 Sonnet is 1 month newer than o1-preview.

Claude 3.5 Sonnet

Oct 22, 2024

1.4 years ago

1mo newer
o1-preview

Sep 12, 2024

1.5 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 Sonnet is available from Anthropic, Bedrock, Google. o1-preview is available from OpenAI, Azure. The availability of providers can affect quality of the model and reliability.

Claude 3.5 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

o1-preview

openai logo
OpenAI
Input Price:Input: $15.00/1MOutput Price:Output: $60.00/1M
azure logo
Azure
Input Price:Input: $16.50/1MOutput Price:Output: $66.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Anthropic
Larger context window (200,000 tokens)
Supports multimodal inputs
Less expensive input tokens
Less expensive output tokens
Higher MGSM score (91.6% vs 90.8%)
Higher SWE-Bench Verified score (49.0% vs 41.3%)
OpenAI
Higher GPQA score (73.3% vs 67.2%)
Higher MATH score (85.5% vs 78.3%)
Higher MMLU score (90.8% vs 90.4%)

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude 3.5 Sonnet
OpenAI
o1-preview