Gemini 2.0 Flash vs Gemini 1.5 Flash
Compare Gemini 2.0 Flash vs Gemini 1.5 Flash 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 Gemini 1.5 Flash at $0.07/1M input and $0.30/1M output. Gemini 1.5 Flash is 1.3x cheaper on input tokens. In benchmark reasoning, Gemini 2.0 Flash holds the higher intelligence rating (88/100). For latency-critical streaming, Gemini 2.0 Flash delivers 260 t/s (180ms TTFT) while Gemini 1.5 Flash provides 180 t/s (210ms TTFT).
Full Metric & Specification Comparison
| Metric | Gemini 2.0 Flash | Gemini 1.5 Flash | Advantage |
|---|---|---|---|
| Provider | - | ||
| Input Token Cost (1M) | $0.100 | $0.075 | Gemini 1.5 Flash |
| Output Token Cost (1M) | $0.400 | $0.300 | Gemini 1.5 Flash |
| Context Window | 1,000k tokens | 1,000k tokens | Tie |
| Intelligence Benchmark Score | 88/100 | 79/100 | Gemini 2.0 Flash |
| Streaming Latency | Ultra-Fast | Ultra-Fast | - |
Key Architectural Takeaways
- Input Token Cost: Gemini 2.0 Flash is $0.10/1M vs Gemini 1.5 Flash at $0.07/1M
- Output Token Cost: Gemini 2.0 Flash is $0.40/1M vs Gemini 1.5 Flash at $0.30/1M
- Context Window: Gemini 2.0 Flash supports 1,000k tokens vs Gemini 1.5 Flash with 1,000k tokens
- Benchmark Intelligence Rating: Gemini 2.0 Flash scores 88/100 vs Gemini 1.5 Flash at 79/100
- Inference Latency: Gemini 2.0 Flash is rated Ultra-Fast vs Gemini 1.5 Flash rated Ultra-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 1.5 Flash over Gemini 2.0 Flash saves $1.13/mo ($14/yr) at this volume.
Frequently Asked Questions
Is Gemini 2.0 Flash cheaper than Gemini 1.5 Flash?
Gemini 1.5 Flash is significantly more economical, charging $0.07/1M input compared to $0.10/1M for Gemini 2.0 Flash.
Which model should I choose for production?
If your primary constraint is API cost and high query throughput, choose Gemini 1.5 Flash. If you require peak reasoning accuracy and complex tool use, Gemini 2.0 Flash is recommended.
How does context window compare between Gemini 2.0 Flash and Gemini 1.5 Flash?
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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