Model Comparison

GPT-5.2 vs Claude 3.5 Haiku

GPT-5.2 significantly outperforms across most benchmarks. Claude 3.5 Haiku is 3.0x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

GPT-5.2 outperforms in 2 benchmarks (GPQA, SWE-Bench Verified), while Claude 3.5 Haiku is better at 0 benchmarks.

GPT-5.2 significantly outperforms across most benchmarks.

Tue Apr 14 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Claude 3.5 Haiku costs less

For input processing, GPT-5.2 ($1.75/1M tokens) is 2.2x more expensive than Claude 3.5 Haiku ($0.80/1M tokens).

For output processing, GPT-5.2 ($14.00/1M tokens) is 3.5x more expensive than Claude 3.5 Haiku ($4.00/1M tokens).

In conclusion, GPT-5.2 is more expensive than Claude 3.5 Haiku.*

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

Lowest available price from all providers
Tue Apr 14 2026 • llm-stats.com
OpenAI
GPT-5.2
Input tokens$1.75
Output tokens$14.00
Best providerOpenAI
Anthropic
Claude 3.5 Haiku
Input tokens$0.80
Output tokens$4.00
Best providerAWS Bedrock
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

GPT-5.2 accepts 400,000 input tokens compared to Claude 3.5 Haiku's 200,000 tokens. Claude 3.5 Haiku can generate longer responses up to 200,000 tokens, while GPT-5.2 is limited to 128,000 tokens.

OpenAI
GPT-5.2
Input400,000 tokens
Output128,000 tokens
Anthropic
Claude 3.5 Haiku
Input200,000 tokens
Output200,000 tokens
Tue Apr 14 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-5.2 supports multimodal inputs, whereas Claude 3.5 Haiku does not.

GPT-5.2 can handle both text and other forms of data like images, making it suitable for multimodal applications.

GPT-5.2

Text
Images
Audio
Video

Claude 3.5 Haiku

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.

GPT-5.2

Proprietary

Closed source

Claude 3.5 Haiku

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-5.2 was released on 2025-12-11, while Claude 3.5 Haiku was released on 2024-10-22.

GPT-5.2 is 14 months newer than Claude 3.5 Haiku.

GPT-5.2

Dec 11, 2025

4 months ago

1.1yr newer
Claude 3.5 Haiku

Oct 22, 2024

1.5 years ago

Knowledge Cutoff

When training data ends

GPT-5.2 has a documented knowledge cutoff of 2025-08-25, while Claude 3.5 Haiku's cutoff date is not specified.

We can confirm GPT-5.2's training data extends to 2025-08-25, but cannot make a direct comparison without Claude 3.5 Haiku's cutoff date.

GPT-5.2

Aug 2025

Claude 3.5 Haiku

—

Provider Availability

GPT-5.2 is available from OpenAI. Claude 3.5 Haiku is available from Bedrock, Google, Anthropic.

GPT-5.2

openai logo
OpenAI
Input Price:Input: $1.75/1MOutput Price:Output: $14.00/1M

Claude 3.5 Haiku

bedrock logo
AWS Bedrock
Input Price:Input: $0.80/1MOutput Price:Output: $4.00/1M
google logo
Google
Input Price:Input: $0.80/1MOutput Price:Output: $4.00/1M
anthropic logo
Anthropic
Input Price:Input: $1.00/1MOutput Price:Output: $5.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

OpenAI
Larger context window (400,000 tokens)
Supports multimodal inputs
Higher GPQA score (92.4% vs 41.6%)
Higher SWE-Bench Verified score (80.0% vs 40.6%)
Anthropic
Less expensive input tokens
Less expensive output tokens

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
GPT-5.2
Anthropic
Claude 3.5 Haiku

FAQ

Common questions about GPT-5.2 vs Claude 3.5 Haiku

GPT-5.2 significantly outperforms across most benchmarks. GPT-5.2 is made by OpenAI and Claude 3.5 Haiku is made by Anthropic. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
GPT-5.2 scores AIME 2025: 100.0%, HMMT 2025: 99.4%, Tau2 Telecom: 98.7%, Graphwalks BFS <128k: 94.0%, GPQA: 92.4%. Claude 3.5 Haiku scores HumanEval: 88.1%, MGSM: 85.6%, DROP: 83.1%, MATH: 69.4%, MMLU-Pro: 65.0%.
Claude 3.5 Haiku is 2.2x cheaper for input tokens. GPT-5.2 costs $1.75/M input and $14.00/M output via openai. Claude 3.5 Haiku costs $0.80/M input and $4.00/M output via bedrock.
GPT-5.2 supports 400K tokens and Claude 3.5 Haiku supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (400K vs 200K), input pricing ($1.75 vs $0.80/M), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.
GPT-5.2 is developed by OpenAI and Claude 3.5 Haiku is developed by Anthropic.