OpenAI o3-mini vs Gemini 2.5 Pro
Side-by-side pricing and cost comparison for AI coding projects.
OpenAI o3-mini
OpenAIAffordable reasoning model for coding tasks. Best price-performance for algorithm-heavy work.
| Input | $1.10/M |
| Output | $4.40/M |
| Context | 200K tokens |
| Best For | Algorithm design, coding challenges, debugging |
Gemini 2.5 Pro
GoogleGoogle's most capable model. Strong coding, multimodal understanding, and very competitive pricing.
| Input | $1.25/M |
| Output | $10.00/M |
| Context | 1M tokens |
| Best For | Long document analysis, coding, multimodal tasks |
Cost Comparison by Scenario
| Scenario | OpenAI o3-mini | Gemini 2.5 Pro | Savings |
|---|---|---|---|
| Small Script (1K lines) | $0.17 | $0.34 | OpenAI o3-mini saves $0.17 (50%) |
| Medium Feature (10K lines) | $1.27 | $2.44 | OpenAI o3-mini saves $1.17 (48%) |
| Large Project (50K lines) | $6.33 | $12.19 | OpenAI o3-mini saves $5.86 (48%) |
| Code Review (5K lines) | $0.30 | $0.47 | OpenAI o3-mini saves $0.17 (35%) |
Verdict
OpenAI o3-mini is cheaper at $1.10/M input vs $1.25/M for Gemini 2.5 Pro.
For a typical medium feature project, OpenAI o3-mini costs $1.27 compared to $2.44 for Gemini 2.5 Pro.
However, Gemini 2.5 Pro may offer long document analysis, coding, multimodal tasks — choose based on your specific needs.
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