Model Comparison

GPT-5.2 vs GPT-5.3 Chat

Comparing GPT-5.2 and GPT-5.3 Chat across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

GPT-5.2 and GPT-5.3 Chat don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

GPT-5.3 Chat costs less

For input processing, GPT-5.2 ($1.75/1M tokens) costs the same as GPT-5.3 Chat ($1.75/1M tokens).

For output processing, GPT-5.2 ($14.00/1M tokens) costs the same as GPT-5.3 Chat ($14.00/1M tokens).

In conclusion, GPT-5.2 and GPT-5.3 Chat cost the same.*

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

Lowest available price from all providers
Thu Apr 30 2026 • llm-stats.com
OpenAI
GPT-5.2
Input tokens$1.75
Output tokens$14.00
Best providerOpenAI
OpenAI
GPT-5.3 Chat
Input tokens$1.75
Output tokens$14.00
Best providerOpenAI
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 GPT-5.3 Chat's 128,000 tokens. GPT-5.2 can generate longer responses up to 128,000 tokens, while GPT-5.3 Chat is limited to 16,384 tokens.

OpenAI
GPT-5.2
Input400,000 tokens
Output128,000 tokens
OpenAI
GPT-5.3 Chat
Input128,000 tokens
Output16,384 tokens
Thu Apr 30 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both GPT-5.2 and GPT-5.3 Chat support multimodal inputs.

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

GPT-5.2

Text
Images
Audio
Video

GPT-5.3 Chat

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

GPT-5.3 Chat

Proprietary

Closed source

Release Timeline

When each model was launched

GPT-5.2 was released on 2025-12-11, while GPT-5.3 Chat was released on 2026-03-04.

GPT-5.3 Chat is 3 months newer than GPT-5.2.

GPT-5.2

Dec 11, 2025

4 months ago

GPT-5.3 Chat

Mar 4, 2026

1 months ago

2mo newer

Knowledge Cutoff

When training data ends

GPT-5.2 has a knowledge cutoff of 2025-08-25, while GPT-5.3 Chat has a cutoff of 2025-08-31.

GPT-5.3 Chat has more recent training data (up to 2025-08-31), making it potentially better informed about events through that date compared to GPT-5.2 (2025-08-25).

GPT-5.2

Aug 2025

GPT-5.3 Chat

Aug 2025

Provider Availability

GPT-5.2 is available from OpenAI. GPT-5.3 Chat is available from OpenAI.

GPT-5.2

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

GPT-5.3 Chat

openai logo
OpenAI
Input Price:Input: $1.75/1MOutput Price:Output: $14.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

OpenAI
Larger context window (400,000 tokens)
OpenAI

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
GPT-5.2
OpenAI
GPT-5.3 Chat

FAQ

Common questions about GPT-5.2 vs GPT-5.3 Chat

GPT-5.2 (OpenAI) and GPT-5.3 Chat (OpenAI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.
GPT-5.2 scores AIME 2025: 100.0%, HMMT 2025: 99.4%, Tau2 Telecom: 98.7%, Graphwalks BFS <128k: 94.0%, GPQA: 92.4%. GPT-5.3 Chat scores HealthBench: 54.1%, HealthBench Hard: 25.9%.
Both models cost $1.75 per million input tokens.
GPT-5.2 supports 400K tokens and GPT-5.3 Chat supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (400K vs 128K). See the full comparison above for benchmark-by-benchmark results.