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Claude 3.7 Sonnet vs o1

Claude 3.7 Sonnet and o1 are closely matched at 24.2 and 21.2 on the LLM Stats Score. Claude 3.7 Sonnet is 4.4x cheaper per token.

Anthropic · OpenAI · Updated for 2026

Which is better?

Claude 3.7 Sonnet and o1 are closely matched on the overall LLM Stats Score at 24.2 and 21.2.

In the 7 individual benchmarks reported for both models, Claude 3.7 Sonnet wins 5; this is a narrower head-to-head signal than the composite indexes.

On price, Claude 3.7 Sonnet is roughly 4.4x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Claude 3.7 Sonnet

  • you value its reported benchmark strengths — it wins 5 of 7 exact shared results
  • cost matters — it's about 4.4x cheaper per token
  • you want the most recent training data — it shipped Feb 2025

Choose o1

  • you want predictable pricing at $15.00/M input and $60.00/M output

At a glance

The differences that matter most.

Core performance indexes
24.2
#155
21.2
#177
23.3
#153
21.6
#167
14.0
#123
4.8
#192
Cost, coverage & limits
Benchmark wins
5 of 7
2 of 7
Input price
$3.00 / M
$15.00 / M
Output price
$15.00 / M
$60.00 / M
Context window
200,000
200,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

3 shared
Index
Claude 3.7 Sonnet
o1
16.7#192
24.2#112
18.1#67
13.0#92
18.6#25
13.3#53
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

11 reported for Claude 3.7 Sonnet · 19 for o1

7 shared

Claude 3.7 Sonnet outperforms in 5 benchmarks (AIME 2024, GPQA, SWE-Bench Verified, TAU-bench Airline, TAU-bench Retail), while o1 is better at 2 benchmarks (MMMLU, MMMU).

Claude 3.7 Sonnet shows notably better performance in the majority of benchmarks.

Tue Sep 01 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

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 o1 ($15.00/1M tokens).

For output processing, Claude 3.7 Sonnet ($15.00/1M tokens) is 4.0x cheaper than o1 ($60.00/1M tokens).

In conclusion, o1 is more expensive than Claude 3.7 Sonnet.*

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

Lowest available price from all providers
Tue Sep 01 2026 • llm-stats.com
Anthropic
Claude 3.7 Sonnet
Input tokens$3.00
Output tokens$15.00
Best providerAnthropic
OpenAI
o1
Input tokens$15.00
Output tokens$60.00
Best providerAzure
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 o1 is limited to 100,000 tokens.

Anthropic
Claude 3.7 Sonnet
Input200,000 tokens
Output128,000 tokens
OpenAI
o1
Input200,000 tokens
Output100,000 tokens
Tue Sep 01 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Claude 3.7 Sonnet supports multimodal inputs, whereas o1 does not.

Claude 3.7 Sonnet can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude 3.7 Sonnet

Text
Images
Audio
Video

o1

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

o1

Proprietary

Closed source

Release Timeline

When each model was launched

Claude 3.7 Sonnet was released on 2025-02-24, while o1 was released on 2024-12-17.

Claude 3.7 Sonnet is 2 months newer than o1.

Claude 3.7 Sonnet

Feb 24, 2025

1.5 years ago

2mo newer
o1

Dec 17, 2024

1.7 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. o1 is available from Azure, OpenAI.

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

o1

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

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Judge for yourself.

Run your own prompts against Claude 3.7 Sonnet and o1 side-by-side, then vote on the output you prefer.

Claude 3.7 Sonnet
✓ Preferred
o1
Open in Playground

FAQ

Common questions about Claude 3.7 Sonnet vs o1.

Which is better, Claude 3.7 Sonnet or o1?

Claude 3.7 Sonnet and o1 are closely matched on the LLM Stats Score at 24.2 and 21.2. Claude 3.7 Sonnet is made by Anthropic and o1 is made by OpenAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude 3.7 Sonnet compare to o1 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%. o1 scores GSM8k: 97.1%, MATH: 96.4%, GPQA Physics: 92.8%, MMLU: 91.8%, MGSM: 89.3%.

Is Claude 3.7 Sonnet cheaper than o1?

Claude 3.7 Sonnet is 5.0x cheaper for input tokens. Claude 3.7 Sonnet costs $3.00/M input and $15.00/M output via anthropic. o1 costs $15.00/M input and $60.00/M output via azure.

What are the context window sizes for Claude 3.7 Sonnet and o1?

Claude 3.7 Sonnet supports 200K tokens and o1 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 o1?

Key differences include LLM Stats Score (24.2 vs 21.2), input pricing ($3.00 vs $15.00/M), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude 3.7 Sonnet and o1?

Claude 3.7 Sonnet is developed by Anthropic and o1 is developed by OpenAI.