Model Comparison

Claude 3 Haiku vs o3-mini

o3-mini significantly outperforms across most benchmarks. Claude 3 Haiku is 3.9x cheaper per token.

Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

Claude 3 Haiku outperforms in 0 benchmarks, while o3-mini is better at 4 benchmarks (GPQA, MATH, MGSM, MMLU).

o3-mini significantly outperforms across most benchmarks.

Fri Apr 10 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Claude 3 Haiku costs less

For input processing, Claude 3 Haiku ($0.25/1M tokens) is 4.4x cheaper than o3-mini ($1.10/1M tokens).

For output processing, Claude 3 Haiku ($1.25/1M tokens) is 3.5x cheaper than o3-mini ($4.40/1M tokens).

In conclusion, o3-mini is more expensive than Claude 3 Haiku.*

* 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 Haiku
Input tokens$0.25
Output tokens$1.25
Best providerAnthropic
OpenAI
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

Both models have the same input context window of 200,000 tokens. Claude 3 Haiku can generate longer responses up to 200,000 tokens, while o3-mini is limited to 100,000 tokens.

Anthropic
Claude 3 Haiku
Input200,000 tokens
Output200,000 tokens
OpenAI
o3-mini
Input200,000 tokens
Output100,000 tokens
Fri Apr 10 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude 3 Haiku supports multimodal inputs, whereas o3-mini does not.

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

Claude 3 Haiku

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 3 Haiku

Proprietary

Closed source

o3-mini

Proprietary

Closed source

Release Timeline

When each model was launched

Claude 3 Haiku was released on 2024-03-13, while o3-mini was released on 2025-01-30.

o3-mini is 11 months newer than Claude 3 Haiku.

Claude 3 Haiku

Mar 13, 2024

2.1 years ago

o3-mini

Jan 30, 2025

1.2 years ago

10mo newer

Knowledge Cutoff

When training data ends

o3-mini has a documented knowledge cutoff of 2023-09-30, while Claude 3 Haiku'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 3 Haiku's cutoff date.

Claude 3 Haiku

—

o3-mini

Sep 2023

Provider Availability

Claude 3 Haiku is available from Anthropic, Bedrock, Google. o3-mini is available from Azure, OpenAI.

Claude 3 Haiku

anthropic logo
Anthropic
Input Price:Input: $0.25/1MOutput Price:Output: $1.25/1M
bedrock logo
AWS Bedrock
Input Price:Input: $0.25/1MOutput Price:Output: $1.25/1M
google logo
Google
Input Price:Input: $0.25/1MOutput Price:Output: $1.25/1M

o3-mini

azure logo
Azure
Input Price:Input: $1.10/1MOutput Price:Output: $4.40/1M
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?Start an Issue discussion→

Key Takeaways

Anthropic
Supports multimodal inputs
Less expensive input tokens
Less expensive output tokens
OpenAI
Higher GPQA score (77.2% vs 33.3%)
Higher MATH score (97.9% vs 38.9%)
Higher MGSM score (92.0% vs 75.1%)
Higher MMLU score (86.9% vs 75.2%)

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude 3 Haiku
OpenAI
o3-mini

FAQ

Common questions about Claude 3 Haiku vs o3-mini

o3-mini significantly outperforms across most benchmarks. Claude 3 Haiku 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.
Claude 3 Haiku scores ARC-C: 89.2%, GSM8k: 88.9%, HellaSwag: 85.9%, DROP: 78.4%, HumanEval: 75.9%. o3-mini scores COLLIE: 98.7%, MATH: 97.9%, IFEval: 93.9%, MGSM: 92.0%, AIME 2024: 87.3%.
Claude 3 Haiku is 4.4x cheaper for input tokens. Claude 3 Haiku costs $0.25/M input and $1.25/M output via anthropic. o3-mini costs $1.10/M input and $4.40/M output via azure.
Claude 3 Haiku supports 200K tokens and o3-mini supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include input pricing ($0.25 vs $1.10/M), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.
Claude 3 Haiku is developed by Anthropic and o3-mini is developed by OpenAI.