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GPT-5.2 pro vs o3 Deep Research

Compare OpenAI and OpenAI AI models

OpenAI
GPT-5.2 pro
vs
OpenAI
o3 Deep Research

Cost Comparison (1000 input + 500 output tokens, 100 requests/day)

GPT-5.2 pro

Per Request:$0.105
Daily:$10.50
Monthly:$315.00
Yearly:$3,832.50

o3 Deep Research

Per Request:$0.03
Daily:$3.00
Monthly:$90.00
Yearly:$1,095.00

Cost Differences

$0.075
Per Request
$7.50
Daily
$225.00
Monthly
$2,737.50
Yearly

o3 Deep Research costs less than GPT-5.2 pro

Feature Comparison

FeatureGPT-5.2 proo3 Deep Research
ProviderOpenAIOpenAI
Input Price$21.00/1M tokens$10.00/1M tokens
Output Price$168.00/1M tokens$40.00/1M tokens
Context Window1,000,000 tokens200,000 tokens
Max Output131,072 tokens32,768 tokens
Categoryreasoningreasoning
Capabilities
textvisionaudiocodereasoning
textreasoningvisioncode
Release Date12/11/20256/26/2025

GPT-5.2 pro vs o3 Deep Research: Which Should You Choose?

Choosing between GPT-5.2 pro and o3 Deep Research depends on your priorities: cost efficiency, context length, or raw capability. o3 Deep Research is the more affordable option at $10.00/1M input tokens52% cheaper than GPT-5.2 pro. Meanwhile, GPT-5.2 pro offers a significantly larger context window at 1,000,000 tokens vs 200,000 for o3 Deep Research.

Both models are in the reasoning category, making this a direct head-to-head comparison. At scale — say 10,000 requests per day — the cost difference adds up: o3 Deep Research would save you roughly $22,500.00/month compared to GPT-5.2 pro. For startups and indie developers, that difference can be significant.

Output costs matter too. GPT-5.2 pro charges $168.00/1M output tokens vs $40.00 for o3 Deep Research. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. o3 Deep Research has the edge here at $40.00/1M output tokens.

Multimodal capabilities: Both models support vision (image understanding), so you can send images alongside text prompts with either option.

Best Use Cases

Choose GPT-5.2 pro when:

  • • You need a larger context window (1,000,000 tokens)
  • • You need more capabilities (audio)
  • • You need longer outputs (up to 131,072 tokens)
  • • You're already using OpenAI's API ecosystem

Choose o3 Deep Research when:

  • • Budget is a primary concern
  • • You're already using OpenAI's API ecosystem

Try Different Scenarios

Use the calculator below to see how costs change with different usage patterns

GPT-5.2 pro (OpenAI)

o3 Deep Research (OpenAI)

Start using GPT-5.2 pro today

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Start using o3 Deep Research today

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Frequently Asked Questions

Which is cheaper, GPT-5.2 pro or o3 Deep Research?
o3 Deep Research is cheaper for input tokens at $10.00 per million tokens vs $21.00 for GPT-5.2 pro — that's 52% savings on input costs.
What is the context window difference between GPT-5.2 pro and o3 Deep Research?
GPT-5.2 pro supports 1,000,000 tokens while o3 Deep Research supports 200,000 tokens — a difference of 800,000 tokens in favor of GPT-5.2 pro.
Which model is better for AI Agent / Agentic Workflows?
Both models support text, code, reasoning. For ai agent / agentic workflows, o3 Deep Research is the lower-cost option, while GPT-5.2 pro offers a larger context window (1,000,000 vs 200,000 tokens). Choose o3 Deep Research for budget sensitivity or GPT-5.2 pro for longer context tasks.
Which model has better overall pricing for heavy usage?
At 100 requests/day with 1,000 input and 500 output tokens each, GPT-5.2 pro costs about $315.00/month and o3 Deep Research costs about $90.00/month. Overall, o3 Deep Research has lower combined input + output rates ($10.00 in, $40.00 out) vs GPT-5.2 pro.

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