Skip to main content

GPT-4.1 mini vs o4-mini Deep Research

GPT-4.1 mini vs o4-mini Deep Research: GPT-4.1 mini is cheaper for input-heavy usage ($0.40/M vs $2.00/M input tokens), while GPT-4.1 mini is better for long-context tasks (200,000 tokens).

Direct answer: choose GPT-4.1 mini for lower token spend and choose GPT-4.1 mini when your workload needs longer context.

Compare input and output token pricing, context windows, and monthly cost estimates on one page so you can pick the cheaper model fast.

OpenAI
GPT-4.1 mini
vs
OpenAI
o4-mini Deep Research

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

GPT-4.1 mini

Per Request:$0.001200
Daily:$0.12
Monthly:$3.60
Yearly:$43.80

o4-mini Deep Research

Per Request:$0.006000
Daily:$0.60
Monthly:$18.00
Yearly:$219.00

Cost Differences

+$0.004800
Per Request
+$0.48
Daily
+$14.40
Monthly
+$175.20
Yearly

o4-mini Deep Research costs more than GPT-4.1 mini

Quick Recommendation

Winner for direct API pricing: GPT-4.1 mini. At the default workload, GPT-4.1 mini saves about $14.40/month ($175.20/year) versus o4-mini Deep Research.

Feature Comparison

FeatureGPT-4.1 minio4-mini Deep Research
ProviderOpenAIOpenAI
Input Price$0.40/1M tokens$2.00/1M tokens
Output Price$1.60/1M tokens$8.00/1M tokens
Context Window200,000 tokens200,000 tokens
Max Output16,384 tokens32,768 tokens
Categoryefficientreasoning
Capabilities
textvisioncode
textreasoningcode
Release Date4/14/20256/26/2025

GPT-4.1 mini vs o4-mini Deep Research: Which Should You Choose?

Choosing between GPT-4.1 mini and o4-mini Deep Research depends on your priorities: cost efficiency, context length, or raw capability. GPT-4.1 mini is the more affordable option at $0.40/1M input tokens80% cheaper than o4-mini Deep Research.

These models target different tiers: GPT-4.1 mini is a efficient model while o4-mini Deep Research is reasoning. This means they're optimized for different workloads. o4-mini Deep Research targets more demanding workloads, while GPT-4.1 mini provides a cost-effective option for everyday tasks.

Output costs matter too. GPT-4.1 mini charges $1.60/1M output tokens vs $8.00 for o4-mini Deep Research. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. GPT-4.1 mini has the edge here at $1.60/1M output tokens.

Multimodal capabilities: GPT-4.1 mini supports vision (image inputs) while o4-mini Deep Research is text-only. If your application needs image understanding, this narrows your choice.

Best Use Cases

Choose GPT-4.1 mini when:

  • • Budget is a primary concern
  • • You're already using OpenAI's API ecosystem
  • • You're running high-volume, latency-sensitive workloads

Choose o4-mini Deep Research when:

  • • You need longer outputs (up to 32,768 tokens)
  • • You're already using OpenAI's API ecosystem

Pros and Caveats at a Glance

GPT-4.1 mini

  • Input pricing: $0.40/M tokens
  • Output pricing: $1.60/M tokens
  • Context window: 200,000 tokens
  • Max output: 16,384 tokens

Watch out for

  • Trade-offs are minor in this matchup.

o4-mini Deep Research

  • Input pricing: $2.00/M tokens
  • Output pricing: $8.00/M tokens
  • Context window: 200,000 tokens
  • Max output: 32,768 tokens

Watch out for

  • Higher input cost than GPT-4.1 mini
  • Higher output cost than GPT-4.1 mini

Try Different Scenarios

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

GPT-4.1 mini (OpenAI)

o4-mini Deep Research (OpenAI)

Start using GPT-4.1 mini today

Sign Up for OpenAI

Start using o4-mini Deep Research today

Sign Up for OpenAI

Frequently Asked Questions

Which is cheaper, GPT-4.1 mini or o4-mini Deep Research?
GPT-4.1 mini is cheaper for input tokens at $0.40 per million tokens vs $2.00 for o4-mini Deep Research — that's 80% savings on input costs.
What is the context window difference between GPT-4.1 mini and o4-mini Deep Research?
GPT-4.1 mini supports 200,000 tokens while o4-mini Deep Research supports 200,000 tokens — a difference of 0 tokens in favor of GPT-4.1 mini.
Which model is better for AI Chatbot?
Both models support text. For ai chatbot, GPT-4.1 mini is the lower-cost option, while GPT-4.1 mini offers a larger context window (200,000 vs 200,000 tokens). Choose GPT-4.1 mini for budget sensitivity or GPT-4.1 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-4.1 mini costs about $3.60/month and o4-mini Deep Research costs about $18.00/month. Overall, GPT-4.1 mini has lower combined input + output rates ($0.40 in, $1.60 out) vs o4-mini Deep Research.

Related Comparisons

Related Articles

Learn when to pick each model, then compare live pricing scenarios.