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GPT-5 mini vs o3 Deep Research

Compare OpenAI and OpenAI AI models

OpenAI
GPT-5 mini
vs
OpenAI
o3 Deep Research

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

GPT-5 mini

Per Request:$0.001250
Daily:$0.125
Monthly:$3.75
Yearly:$45.625

o3 Deep Research

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

Cost Differences

+$0.02875
Per Request
+$2.875
Daily
+$86.25
Monthly
+$1,049.375
Yearly

o3 Deep Research costs more than GPT-5 mini

Feature Comparison

FeatureGPT-5 minio3 Deep Research
ProviderOpenAIOpenAI
Input Price$0.25/1M tokens$10.00/1M tokens
Output Price$2.00/1M tokens$40.00/1M tokens
Context Window500,000 tokens200,000 tokens
Max Output65,536 tokens32,768 tokens
Categoryefficientreasoning
Capabilities
textvisioncode
textreasoningvisioncode
Release Date8/7/20256/26/2025

GPT-5 mini vs o3 Deep Research: Which Should You Choose?

Choosing between GPT-5 mini and o3 Deep Research depends on your priorities: cost efficiency, context length, or raw capability. GPT-5 mini is the more affordable option at $0.25/1M input tokens98% cheaper than o3 Deep Research. Meanwhile, GPT-5 mini offers a significantly larger context window at 500,000 tokens vs 200,000 for o3 Deep Research.

These models target different tiers: GPT-5 mini is a efficient model while o3 Deep Research is reasoning. This means they're optimized for different workloads. o3 Deep Research targets more demanding workloads, while GPT-5 mini provides a cost-effective option for everyday tasks.

Output costs matter too. GPT-5 mini charges $2.00/1M output tokens vs $40.00 for o3 Deep Research. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. GPT-5 mini has the edge here at $2.00/1M 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 mini when:

  • • Budget is a primary concern
  • • You need a larger context window (500,000 tokens)
  • • You need longer outputs (up to 65,536 tokens)
  • • You're already using OpenAI's API ecosystem
  • • You're running high-volume, latency-sensitive workloads

Choose o3 Deep Research when:

  • • You need more capabilities (reasoning)
  • • 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 mini (OpenAI)

o3 Deep Research (OpenAI)

Start using GPT-5 mini today

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Start using o3 Deep Research today

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Frequently Asked Questions

Which is cheaper, GPT-5 mini or o3 Deep Research?
GPT-5 mini is cheaper for input tokens at $0.25 per million tokens vs $10.00 for o3 Deep Research — that's 98% savings on input costs.
What is the context window difference between GPT-5 mini and o3 Deep Research?
GPT-5 mini supports 500,000 tokens while o3 Deep Research supports 200,000 tokens — a difference of 300,000 tokens in favor of GPT-5 mini.
Which model is better for AI Chatbot?
Both models support text. For ai chatbot, GPT-5 mini is the lower-cost option, while GPT-5 mini offers a larger context window (500,000 vs 200,000 tokens). Choose GPT-5 mini for budget sensitivity or GPT-5 mini 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 mini costs about $3.75/month and o3 Deep Research costs about $90.00/month. Overall, GPT-5 mini has lower combined input + output rates ($0.25 in, $2.00 out) vs o3 Deep Research.

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