Model Comparison

Claude Opus 4 vs GPT-5.2 Pro

GPT-5.2 Pro significantly outperforms across most benchmarks. Claude Opus 4 is 1.9x cheaper per token.

Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Claude Opus 4 outperforms in 0 benchmarks, while GPT-5.2 Pro is better at 3 benchmarks (AIME 2025, ARC-AGI v2, GPQA).

GPT-5.2 Pro 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 Opus 4 costs less

For input processing, Claude Opus 4 ($15.00/1M tokens) is 1.4x cheaper than GPT-5.2 Pro ($21.00/1M tokens).

For output processing, Claude Opus 4 ($75.00/1M tokens) is 2.2x cheaper than GPT-5.2 Pro ($168.00/1M tokens).

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

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

Lowest available price from all providers
Tue Apr 14 2026 • llm-stats.com
Anthropic
Claude Opus 4
Input tokens$15.00
Output tokens$75.00
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 Opus 4's 200,000 tokens. GPT-5.2 Pro can generate longer responses up to 128,000 tokens, while Claude Opus 4 is limited to 32,000 tokens.

Anthropic
Claude Opus 4
Input200,000 tokens
Output32,000 tokens
OpenAI
GPT-5.2 Pro
Input400,000 tokens
Output128,000 tokens
Tue Apr 14 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

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

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

Claude Opus 4

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 Opus 4

Proprietary

Closed source

GPT-5.2 Pro

Proprietary

Closed source

Release Timeline

When each model was launched

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

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

Claude Opus 4

May 22, 2025

10 months ago

GPT-5.2 Pro

Dec 11, 2025

4 months ago

6mo 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 Opus 4 is available from Anthropic, Bedrock, Google. GPT-5.2 Pro is available from OpenAI.

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

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

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Anthropic
Less expensive input tokens
Less expensive output tokens
OpenAI
Larger context window (400,000 tokens)
Higher AIME 2025 score (100.0% vs 75.5%)
Higher ARC-AGI v2 score (54.2% vs 8.6%)
Higher GPQA score (93.2% vs 79.6%)
AnthropicClaude Opus 4
OpenAIGPT-5.2 Pro
Compare in Playground

Detailed Comparison

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

FAQ

Common questions about Claude Opus 4 vs GPT-5.2 Pro

GPT-5.2 Pro significantly outperforms across most benchmarks. Claude Opus 4 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 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 Pro scores AIME 2025: 100.0%, HMMT 2025: 100.0%, GPQA: 93.2%, ARC-AGI: 90.5%, BrowseComp: 77.9%.
Claude Opus 4 is 1.4x cheaper for input tokens. Claude Opus 4 costs $15.00/M input and $75.00/M output via anthropic. GPT-5.2 Pro costs $21.00/M input and $168.00/M output via openai.
Claude Opus 4 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 ($15.00 vs $21.00/M). See the full comparison above for benchmark-by-benchmark results.
Claude Opus 4 is developed by Anthropic and GPT-5.2 Pro is developed by OpenAI.