Model Comparison

Claude 3 Opus vs o1-mini

o1-mini shows notably better performance in the majority of benchmarks. o1-mini is 5.7x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Claude 3 Opus outperforms in 1 benchmarks (MMLU), while o1-mini is better at 2 benchmarks (GPQA, HumanEval).

o1-mini shows notably better performance in the majority of benchmarks.

Fri Apr 10 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

o1-mini costs less

For input processing, Claude 3 Opus ($15.00/1M tokens) is 5.0x more expensive than o1-mini ($3.00/1M tokens).

For output processing, Claude 3 Opus ($75.00/1M tokens) is 6.3x more expensive than o1-mini ($12.00/1M tokens).

In conclusion, Claude 3 Opus is more expensive than o1-mini.*

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

Lowest available price from all providers
Fri Apr 10 2026 • llm-stats.com
Anthropic
Claude 3 Opus
Input tokens$15.00
Output tokens$75.00
Best providerAnthropic
OpenAI
o1-mini
Input tokens$3.00
Output tokens$12.00
Best providerOpenAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Claude 3 Opus accepts 200,000 input tokens compared to o1-mini's 128,000 tokens. Claude 3 Opus can generate longer responses up to 200,000 tokens, while o1-mini is limited to 65,536 tokens.

Anthropic
Claude 3 Opus
Input200,000 tokens
Output200,000 tokens
OpenAI
o1-mini
Input128,000 tokens
Output65,536 tokens
Fri Apr 10 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude 3 Opus supports multimodal inputs, whereas o1-mini does not.

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

Claude 3 Opus

Text
Images
Audio
Video

o1-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 Opus

Proprietary

Closed source

o1-mini

Proprietary

Closed source

Release Timeline

When each model was launched

Claude 3 Opus was released on 2024-02-29, while o1-mini was released on 2024-09-12.

o1-mini is 7 months newer than Claude 3 Opus.

Claude 3 Opus

Feb 29, 2024

2.1 years ago

o1-mini

Sep 12, 2024

1.6 years ago

6mo newer

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 Opus is available from Anthropic, Bedrock, Google. o1-mini is available from OpenAI, Azure.

Claude 3 Opus

anthropic logo
Anthropic
Input Price:Input: $15.00/1MOutput Price:Output: $75.00/1M
bedrock logo
AWS Bedrock
Input Price:Input: $15.00/1MOutput Price:Output: $75.00/1M
google logo
Google
Input Price:Input: $15.00/1MOutput Price:Output: $75.00/1M

o1-mini

openai logo
OpenAI
Input Price:Input: $3.00/1MOutput Price:Output: $12.00/1M
azure logo
Azure
Input Price:Input: $3.30/1MOutput Price:Output: $13.20/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Anthropic
Larger context window (200,000 tokens)
Supports multimodal inputs
Higher MMLU score (86.8% vs 85.2%)
OpenAI
Less expensive input tokens
Less expensive output tokens
Higher GPQA score (60.0% vs 50.4%)
Higher HumanEval score (92.4% vs 84.9%)

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude 3 Opus
OpenAI
o1-mini

FAQ

Common questions about Claude 3 Opus vs o1-mini

o1-mini shows notably better performance in the majority of benchmarks. Claude 3 Opus is made by Anthropic and o1-mini is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
Claude 3 Opus scores ARC-C: 96.4%, HellaSwag: 95.4%, GSM8k: 95.0%, MGSM: 90.7%, BIG-Bench Hard: 86.8%. o1-mini scores HumanEval: 92.4%, MATH-500: 90.0%, MMLU: 85.2%, SuperGLUE: 75.0%, GPQA: 60.0%.
o1-mini is 5.0x cheaper for input tokens. Claude 3 Opus costs $15.00/M input and $75.00/M output via anthropic. o1-mini costs $3.00/M input and $12.00/M output via openai.
Claude 3 Opus supports 200K tokens and o1-mini supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (200K vs 128K), input pricing ($15.00 vs $3.00/M), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.
Claude 3 Opus is developed by Anthropic and o1-mini is developed by OpenAI.