Model Comparison

GPT-5.2 vs Claude Opus 4

GPT-5.2 significantly outperforms across most benchmarks. GPT-5.2 is 6.2x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

5 benchmarks

GPT-5.2 outperforms in 5 benchmarks (AIME 2025, ARC-AGI v2, GPQA, MMMLU, SWE-Bench Verified), while Claude Opus 4 is better at 0 benchmarks.

GPT-5.2 significantly outperforms across most benchmarks.

Wed Apr 15 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

GPT-5.2 costs less

For input processing, GPT-5.2 ($1.75/1M tokens) is 8.6x cheaper than Claude Opus 4 ($15.00/1M tokens).

For output processing, GPT-5.2 ($14.00/1M tokens) is 5.4x cheaper than Claude Opus 4 ($75.00/1M tokens).

In conclusion, Claude Opus 4 is more expensive than GPT-5.2.*

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

Lowest available price from all providers
Wed Apr 15 2026 • llm-stats.com
OpenAI
GPT-5.2
Input tokens$1.75
Output tokens$14.00
Best providerOpenAI
Anthropic
Claude Opus 4
Input tokens$15.00
Output tokens$75.00
Best providerAnthropic
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 Opus 4's 200,000 tokens. GPT-5.2 can generate longer responses up to 128,000 tokens, while Claude Opus 4 is limited to 32,000 tokens.

OpenAI
GPT-5.2
Input400,000 tokens
Output128,000 tokens
Anthropic
Claude Opus 4
Input200,000 tokens
Output32,000 tokens
Wed Apr 15 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both GPT-5.2 and Claude Opus 4 support multimodal inputs.

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

GPT-5.2

Text
Images
Audio
Video

Claude Opus 4

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 Opus 4

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-5.2 was released on 2025-12-11, while Claude Opus 4 was released on 2025-05-22.

GPT-5.2 is 7 months newer than Claude Opus 4.

GPT-5.2

Dec 11, 2025

4 months ago

6mo newer
Claude Opus 4

May 22, 2025

10 months ago

Knowledge Cutoff

When training data ends

GPT-5.2 has a documented knowledge cutoff of 2025-08-25, while Claude Opus 4'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 Opus 4's cutoff date.

GPT-5.2

Aug 2025

Claude Opus 4

—

Provider Availability

GPT-5.2 is available from OpenAI. Claude Opus 4 is available from Anthropic, Bedrock, Google.

GPT-5.2

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

Claude Opus 4

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
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

OpenAI
Larger context window (400,000 tokens)
Less expensive input tokens
Less expensive output tokens
Higher AIME 2025 score (100.0% vs 75.5%)
Higher ARC-AGI v2 score (52.9% vs 8.6%)
Higher GPQA score (92.4% vs 79.6%)
Higher MMMLU score (89.6% vs 88.8%)
Higher SWE-Bench Verified score (80.0% vs 72.5%)
Anthropic
OpenAIGPT-5.2
AnthropicClaude Opus 4
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Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
GPT-5.2
Anthropic
Claude Opus 4

FAQ

Common questions about GPT-5.2 vs Claude Opus 4

GPT-5.2 significantly outperforms across most benchmarks. GPT-5.2 is made by OpenAI and Claude Opus 4 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 Opus 4 scores MMMLU: 88.8%, TAU-bench Retail: 81.4%, GPQA: 79.6%, MMMU (validation): 76.5%, AIME 2025: 75.5%.
GPT-5.2 is 8.6x cheaper for input tokens. GPT-5.2 costs $1.75/M input and $14.00/M output via openai. Claude Opus 4 costs $15.00/M input and $75.00/M output via anthropic.
GPT-5.2 supports 400K tokens and Claude Opus 4 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 $15.00/M). See the full comparison above for benchmark-by-benchmark results.
GPT-5.2 is developed by OpenAI and Claude Opus 4 is developed by Anthropic.