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Claude 3 Sonnet vs o4-mini

o4-mini leads the LLM Stats Score 27.5 to 1.7. o4-mini is 3.1x cheaper per token.

Anthropic · OpenAI · Updated for 2026

Which is better?

o4-mini leads the overall LLM Stats Score 27.5 to 1.7, ranking #151 overall.

In the 1 individual benchmarks reported for both models, o4-mini wins 1; this is a narrower head-to-head signal than the composite indexes.

On price, o4-mini is roughly 3.1x 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 Sonnet

  • you want predictable pricing at $3.00/M input and $15.00/M output

Choose o4-mini

  • overall performance matters — it scores 27.5 and ranks #151 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • cost matters — it's about 3.1x cheaper per token
  • you want the most recent training data — it shipped Apr 2025

At a glance

The differences that matter most.

Core performance indexes
1.7
#327
27.5
#151
1.6
#318
27.5
#143
-1.4
#255
11.9
#159
Cost, coverage & limits
Benchmark wins
0 of 1
1 of 1
Input price
$3.00 / M
$1.10 / M
Output price
$15.00 / M
$4.40 / M
Context window
200,000
200,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Claude 3 Sonnet
o4-mini
7.4#266
27.6#99
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

11 reported for Claude 3 Sonnet · 14 for o4-mini

1 shared

Claude 3 Sonnet outperforms in 0 benchmarks, while o4-mini is better at 1 benchmark (GPQA).

o4-mini significantly outperforms across most benchmarks.

Sat Oct 03 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

o4-mini costs less

For input processing, Claude 3 Sonnet ($3.00/1M tokens) is 2.7x more expensive than o4-mini ($1.10/1M tokens).

For output processing, Claude 3 Sonnet ($15.00/1M tokens) is 3.4x more expensive than o4-mini ($4.40/1M tokens).

In conclusion, Claude 3 Sonnet is more expensive than o4-mini.*

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

Lowest available price from all providers
Sat Oct 03 2026 • llm-stats.com
Anthropic
Claude 3 Sonnet
Input tokens$3.00
Output tokens$15.00
Best providerAnthropic
OpenAI
o4-mini
Input tokens$1.10
Output tokens$4.40
Best providerOpenAI
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

Both models have the same input context window of 200,000 tokens. Claude 3 Sonnet can generate longer responses up to 200,000 tokens, while o4-mini is limited to 100,000 tokens.

Anthropic
Claude 3 Sonnet
Input200,000 tokens
Output200,000 tokens
OpenAI
o4-mini
Input200,000 tokens
Output100,000 tokens
Sat Oct 03 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude 3 Sonnet and o4-mini support multimodal inputs.

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

Claude 3 Sonnet

Text
Images
Audio
Video

o4-mini

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 Sonnet

Proprietary

Closed source

o4-mini

Proprietary

Closed source

Release Timeline

When each model was launched

Claude 3 Sonnet was released on 2024-02-29, while o4-mini was released on 2025-04-16.

o4-mini is 14 months newer than Claude 3 Sonnet.

Claude 3 Sonnet

Feb 29, 2024

2.6 years ago

o4-mini

Apr 16, 2025

1.5 years ago

1.1yr newer

Knowledge Cutoff

When training data ends

o4-mini has a documented knowledge cutoff of 2024-05-31, while Claude 3 Sonnet's cutoff date is not specified.

We can confirm o4-mini's training data extends to 2024-05-31, but cannot make a direct comparison without Claude 3 Sonnet's cutoff date.

Claude 3 Sonnet

—

o4-mini

May 2024

Provider Availability

Claude 3 Sonnet is available from Anthropic, Bedrock, Google. o4-mini is available from OpenAI.

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

o4-mini

openai logo
OpenAI
Input Price:Input: $1.10/1MOutput Price:Output: $4.40/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Claude 3 Sonnet and o4-mini side-by-side, then vote on the output you prefer.

Claude 3 Sonnet
✓ Preferred
o4-mini
Open in Playground

FAQ

Common questions about Claude 3 Sonnet vs o4-mini.

Which is better, Claude 3 Sonnet or o4-mini?

o4-mini leads the LLM Stats Score 27.5 to 1.7. Claude 3 Sonnet is made by Anthropic and o4-mini 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 Sonnet compare to o4-mini in benchmarks?

Claude 3 Sonnet scores ARC-C: 93.2%, GSM8k: 92.3%, HellaSwag: 89.0%, MGSM: 83.5%, BIG-Bench Hard: 82.9%. o4-mini scores AIME 2024: 93.4%, AIME 2025: 92.7%, MathVista: 84.3%, MMMU: 81.6%, GPQA: 81.4%.

Is Claude 3 Sonnet cheaper than o4-mini?

o4-mini is 2.7x cheaper for input tokens. Claude 3 Sonnet costs $3.00/M input and $15.00/M output via anthropic. o4-mini costs $1.10/M input and $4.40/M output via openai.

What are the context window sizes for Claude 3 Sonnet and o4-mini?

Claude 3 Sonnet supports 200K tokens and o4-mini 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 Sonnet and o4-mini?

Key differences include LLM Stats Score (1.7 vs 27.5), input pricing ($3.00 vs $1.10/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude 3 Sonnet and o4-mini?

Claude 3 Sonnet is developed by Anthropic and o4-mini is developed by OpenAI.