Gemini 2.0 Flash vs o3-mini (Reasoning)
Compare Gemini 2.0 Flash vs o3-mini (Reasoning) API pricing, token costs, context windows, and latency. See which model is cheaper and better for your stack.
Gemini 2.0 Flash charges $0.10/1M input and $0.40/1M output tokens, compared to o3-mini (Reasoning) at $1.10/1M input and $4.40/1M output. Gemini 2.0 Flash is 11.0x cheaper on input tokens. In benchmark reasoning, o3-mini (Reasoning) holds the higher intelligence rating (93/100). For latency-critical streaming, Gemini 2.0 Flash delivers 260 t/s (180ms TTFT) while o3-mini (Reasoning) provides 95 t/s (580ms TTFT).
Full Metric & Specification Comparison
| Metric | Gemini 2.0 Flash | o3-mini (Reasoning) | Advantage |
|---|---|---|---|
| Provider | OpenAI | - | |
| Input Token Cost (1M) | $0.100 | $1.100 | Gemini 2.0 Flash |
| Output Token Cost (1M) | $0.400 | $4.400 | Gemini 2.0 Flash |
| Context Window | 1,000k tokens | 200k tokens | Gemini 2.0 Flash |
| Intelligence Benchmark Score | 88/100 | 93/100 | o3-mini (Reasoning) |
| Streaming Latency | Ultra-Fast | Fast | - |
Key Architectural Takeaways
- Input Token Cost: Gemini 2.0 Flash is $0.10/1M vs o3-mini (Reasoning) at $1.10/1M
- Output Token Cost: Gemini 2.0 Flash is $0.40/1M vs o3-mini (Reasoning) at $4.40/1M
- Context Window: Gemini 2.0 Flash supports 1,000k tokens vs o3-mini (Reasoning) with 200k tokens
- Benchmark Intelligence Rating: Gemini 2.0 Flash scores 88/100 vs o3-mini (Reasoning) at 93/100
- Inference Latency: Gemini 2.0 Flash is rated Ultra-Fast vs o3-mini (Reasoning) rated Fast
Calculate Your Team's Exact Bill Difference
Drag the sliders below to see real-time cost divergences based on your daily token consumption.
Deploying Gemini 2.0 Flash over o3-mini (Reasoning) saves $45.00/mo ($540/yr) at this volume.
Frequently Asked Questions
Is Gemini 2.0 Flash cheaper than o3-mini (Reasoning)?
Gemini 2.0 Flash is significantly more economical, charging $0.10/1M input compared to $1.10/1M for o3-mini (Reasoning).
Which model should I choose for production?
If your primary constraint is API cost and high query throughput, choose Gemini 2.0 Flash. If you require peak reasoning accuracy and complex tool use, o3-mini (Reasoning) is recommended.
How does context window compare between Gemini 2.0 Flash and o3-mini (Reasoning)?
Gemini 2.0 Flash offers the larger context window (1,000k tokens), allowing you to pass significantly larger codebases or documents without chunking.
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