Gemini 3.8 Flash vs DeepSeek V4 Pro
Compare Gemini 3.8 Flash vs DeepSeek V4 Pro API pricing, token costs, context windows, and latency. See which model is cheaper and better for your stack.
Gemini 3.8 Flash charges $0.75/1M input and $3.75/1M output tokens, compared to DeepSeek V4 Pro at $0.66/1M input and $1.98/1M output. DeepSeek V4 Pro is 1.1x cheaper on input tokens. In reasoning benchmarks, Gemini 3.8 Flash holds the higher AA Intelligence Index rating (31/100). For latency-critical streaming, Gemini 3.8 Flash delivers 113 t/s (20.0s TTFT) while DeepSeek V4 Pro provides 80 t/s (59.0s TTFT).
Full Metric & Specification Comparison
| Metric | Gemini 3.8 Flash | DeepSeek V4 Pro | Advantage |
|---|---|---|---|
| Provider | DeepSeek | - | |
| Input Token Cost (1M) | $0.750 | $0.660 | DeepSeek V4 Pro |
| Output Token Cost (1M) | $3.750 | $1.980 | DeepSeek V4 Pro |
| Context Window | 1,000k tokens | 1,000k tokens | Tie |
| AA Intelligence Index | 31/100 | 23/100 | Gemini 3.8 Flash |
| Streaming Latency | Fast | Moderate | - |
Key Architectural Takeaways
- Input Token Cost: Gemini 3.8 Flash is $0.75/1M vs DeepSeek V4 Pro at $0.66/1M
- Output Token Cost: Gemini 3.8 Flash is $3.75/1M vs DeepSeek V4 Pro at $1.98/1M
- Context Window: Gemini 3.8 Flash supports 1,000k tokens vs DeepSeek V4 Pro with 1,000k tokens
- Benchmark Intelligence Rating: Gemini 3.8 Flash scores 31/100 vs DeepSeek V4 Pro at 23/100 (AA Index v5)
- Inference Latency: Gemini 3.8 Flash is rated Fast vs DeepSeek V4 Pro rated Moderate
Calculate Your Team's Exact Bill Difference
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Deploying DeepSeek V4 Pro over Gemini 3.8 Flash saves $14.63/mo ($176/yr) at this volume.
Frequently Asked Questions
Is Gemini 3.8 Flash cheaper than DeepSeek V4 Pro?
DeepSeek V4 Pro is significantly more economical, charging $0.66/1M input compared to $0.75/1M for Gemini 3.8 Flash.
Which model should I choose for production?
If your primary constraint is API cost and high query throughput, choose DeepSeek V4 Pro. If you require peak reasoning accuracy and complex tool use, Gemini 3.8 Flash is recommended.
How does context window compare between Gemini 3.8 Flash and DeepSeek V4 Pro?
Gemini 3.8 Flash offers the larger context window (1,000k tokens), allowing you to pass significantly larger codebases or documents without chunking.
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