OpenAI o1 Pro vs GPT-4.1 mini

Performance benchmarks + pricing comparison — updated April 2026

OpenAI o1 Pro

OpenAI

Premium reasoning model with extended compute. Best-in-class for complex math, science, and advanced coding challenges.

Input$20.00/M
Output$80.00/M
Context200K tokens
Best ForResearch-grade problem solving, competition math, complex system design

GPT-4.1 mini

OpenAI

Cost-optimized GPT-4.1 variant. Strong coding capability at budget pricing, replacing GPT-4o mini for many use cases.

Input$0.400/M
Output$1.60/M
Context128K tokens
Best ForHigh-volume coding, cost-sensitive projects, automation
Benchmark68/100

Cost Comparison by Scenario

Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.

ScenarioOpenAI o1 ProGPT-4.1 miniSavings
Small Script (1K lines) $3.10 $0.06 GPT-4.1 mini saves $3.04 (98%)
Medium Feature (10K lines) $23.00 $0.46 GPT-4.1 mini saves $22.54 (98%)
Large Project (50K lines) $115.00 $2.30 GPT-4.1 mini saves $112.70 (98%)
Code Review (5K lines) $5.50 $0.11 GPT-4.1 mini saves $5.39 (98%)

Verdict

GPT-4.1 mini wins on both price and performance — $0.400/M input with a benchmark score of N/A/100.

For most developers, this is the clear choice between these two models.

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