Model Comparison

Claude 3 Haiku vs GPT-5.2 Pro

GPT-5.2 Pro significantly outperforms across most benchmarks. Claude 3 Haiku is 115.5x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Claude 3 Haiku outperforms in 0 benchmarks, while GPT-5.2 Pro is better at 1 benchmark (GPQA).

GPT-5.2 Pro significantly outperforms across most benchmarks.

Thu Apr 16 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 84.0x cheaper than GPT-5.2 Pro ($21.00/1M tokens).

For output processing, Claude 3 Haiku ($1.25/1M tokens) is 134.4x cheaper than GPT-5.2 Pro ($168.00/1M tokens).

In conclusion, GPT-5.2 Pro is more expensive than Claude 3 Haiku.*

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

Lowest available price from all providers
Thu Apr 16 2026 • llm-stats.com
Anthropic
Claude 3 Haiku
Input tokens$0.25
Output tokens$1.25
Best providerAnthropic
OpenAI
GPT-5.2 Pro
Input tokens$21.00
Output tokens$168.00
Best providerOpenAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

GPT-5.2 Pro accepts 400,000 input tokens compared to Claude 3 Haiku's 200,000 tokens. Claude 3 Haiku can generate longer responses up to 200,000 tokens, while GPT-5.2 Pro is limited to 128,000 tokens.

Anthropic
Claude 3 Haiku
Input200,000 tokens
Output200,000 tokens
OpenAI
GPT-5.2 Pro
Input400,000 tokens
Output128,000 tokens
Thu Apr 16 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude 3 Haiku and GPT-5.2 Pro support multimodal inputs.

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

Claude 3 Haiku

Text
Images
Audio
Video

GPT-5.2 Pro

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

GPT-5.2 Pro

Proprietary

Closed source

Release Timeline

When each model was launched

Claude 3 Haiku was released on 2024-03-13, while GPT-5.2 Pro was released on 2025-12-11.

GPT-5.2 Pro is 21 months newer than Claude 3 Haiku.

Claude 3 Haiku

Mar 13, 2024

2.1 years ago

GPT-5.2 Pro

Dec 11, 2025

4 months ago

1.7yr 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 Haiku is available from Anthropic, Bedrock, Google. GPT-5.2 Pro is available from 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

GPT-5.2 Pro

openai logo
OpenAI
Input Price:Input: $21.00/1MOutput Price:Output: $168.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Anthropic
Less expensive input tokens
Less expensive output tokens
OpenAI
Larger context window (400,000 tokens)
Higher GPQA score (93.2% vs 33.3%)

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude 3 Haiku
OpenAI
GPT-5.2 Pro

FAQ

Common questions about Claude 3 Haiku vs GPT-5.2 Pro

GPT-5.2 Pro significantly outperforms across most benchmarks. Claude 3 Haiku is made by Anthropic and GPT-5.2 Pro 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%. GPT-5.2 Pro scores AIME 2025: 100.0%, HMMT 2025: 100.0%, GPQA: 93.2%, ARC-AGI: 90.5%, BrowseComp: 77.9%.
Claude 3 Haiku is 84.0x cheaper for input tokens. Claude 3 Haiku costs $0.25/M input and $1.25/M output via anthropic. GPT-5.2 Pro costs $21.00/M input and $168.00/M output via openai.
Claude 3 Haiku supports 200K tokens and GPT-5.2 Pro supports 400K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (200K vs 400K), input pricing ($0.25 vs $21.00/M). See the full comparison above for benchmark-by-benchmark results.
Claude 3 Haiku is developed by Anthropic and GPT-5.2 Pro is developed by OpenAI.