Model Comparison

Claude Opus 4.6 vs o3-mini

Claude Opus 4.6 significantly outperforms across most benchmarks. o3-mini is 5.2x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

Claude Opus 4.6 outperforms in 2 benchmarks (GPQA, SWE-Bench Verified), while o3-mini is better at 0 benchmarks.

Claude Opus 4.6 significantly outperforms across most benchmarks.

Sun May 10 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

o3-mini costs less

For input processing, Claude Opus 4.6 ($5.00/1M tokens) is 4.5x more expensive than o3-mini ($1.10/1M tokens).

For output processing, Claude Opus 4.6 ($25.00/1M tokens) is 5.7x more expensive than o3-mini ($4.40/1M tokens).

In conclusion, Claude Opus 4.6 is more expensive than o3-mini.*

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

Lowest available price from all providers

Sun May 10 2026 • llm-stats.com

Claude Opus 4.6

Input tokens$5.00

Output tokens$25.00

Best providerAnthropic

o3-mini

Input tokens$1.10

Output tokens$4.40

Best providerAzure

Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Claude Opus 4.6 accepts 1,000,000 input tokens compared to o3-mini's 200,000 tokens. Claude Opus 4.6 can generate longer responses up to 128,000 tokens, while o3-mini is limited to 100,000 tokens.

Claude Opus 4.6

Input1,000,000 tokens

Output128,000 tokens

o3-mini

Input200,000 tokens

Output100,000 tokens

Sun May 10 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude Opus 4.6 supports multimodal inputs, whereas o3-mini does not.

Claude Opus 4.6 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Opus 4.6

Text

Images

Audio

Video

o3-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 Opus 4.6

Proprietary

Closed source

o3-mini

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Opus 4.6 was released on 2026-02-05, while o3-mini was released on 2025-01-30.

Claude Opus 4.6 is 12 months newer than o3-mini.

Claude Opus 4.6

Feb 5, 2026

3 months ago

1.0yr newer

o3-mini

Jan 30, 2025

1.3 years ago

Knowledge Cutoff

When training data ends

o3-mini has a documented knowledge cutoff of 2023-09-30, while Claude Opus 4.6's cutoff date is not specified.

We can confirm o3-mini's training data extends to 2023-09-30, but cannot make a direct comparison without Claude Opus 4.6's cutoff date.

Claude Opus 4.6

—

o3-mini

Sep 2023

Provider Availability

Claude Opus 4.6 is available from Anthropic. o3-mini is available from Azure, OpenAI.

Claude Opus 4.6

Anthropic

Input Price:Input: $5.00/1MOutput Price:Output: $25.00/1M

o3-mini

Azure

Input Price:Input: $1.10/1MOutput Price:Output: $4.40/1M

OpenAI

Input Price:Input: $1.10/1MOutput Price:Output: $4.40/1M

* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Claude Opus 4.6

View details

Anthropic

Larger context window (1,000,000 tokens)

Supports multimodal inputs

Higher GPQA score (91.3% vs 77.2%)

Higher SWE-Bench Verified score (80.8% vs 49.3%)

o3-mini

View details

OpenAI

Less expensive input tokens

Less expensive output tokens

Detailed Comparison

AI Model Comparison Table
Feature	Claude Opus 4.6	o3-mini

FAQ

Common questions about Claude Opus 4.6 vs o3-mini.

Which is better, Claude Opus 4.6 or o3-mini?

Claude Opus 4.6 significantly outperforms across most benchmarks. Claude Opus 4.6 is made by Anthropic and o3-mini is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude Opus 4.6 compare to o3-mini in benchmarks?

Claude Opus 4.6 scores Vending-Bench 2: 100.0%, AIME 2025: 99.8%, Tau2 Telecom: 99.3%, Graphwalks parents >128k: 95.4%, MRCR v2 (8-needle): 93.0%. o3-mini scores COLLIE: 98.7%, MATH: 97.9%, IFEval: 93.9%, MGSM: 92.0%, AIME 2024: 87.3%.

Is Claude Opus 4.6 cheaper than o3-mini?

o3-mini is 4.5x cheaper for input tokens. Claude Opus 4.6 costs $5.00/M input and $25.00/M output via anthropic. o3-mini costs $1.10/M input and $4.40/M output via azure.

What are the context window sizes for Claude Opus 4.6 and o3-mini?

Claude Opus 4.6 supports 1.0M tokens and o3-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 Opus 4.6 and o3-mini?

Key differences include context window (1.0M vs 200K), input pricing ($5.00 vs $1.10/M), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Opus 4.6 and o3-mini?

Claude Opus 4.6 is developed by Anthropic and o3-mini is developed by OpenAI.