DeepSeek Flash vs Grok 4.3
Compare DeepSeek Flash vs Grok 4.3 API pricing, token costs, context windows, and latency. See which model is cheaper and better for your stack.
DeepSeek Flash charges $0.15/1M input and $0.60/1M output tokens, compared to Grok 4.3 at $1.25/1M input and $2.50/1M output. DeepSeek Flash is 8.3x cheaper on input tokens. In reasoning benchmarks, DeepSeek Flash holds the higher AA Intelligence Index rating. For latency-critical streaming, DeepSeek Flash delivers 170 t/s (46.0s TTFT) while Grok 4.3 provides 79 t/s (23.0s TTFT).
Full Metric & Specification Comparison
| Metric | DeepSeek Flash | Grok 4.3 | Advantage |
|---|---|---|---|
| Provider | DeepSeek | xAI | - |
| Input Token Cost (1M) | $0.150 | $1.250 | DeepSeek Flash |
| Output Token Cost (1M) | $0.600 | $2.500 | DeepSeek Flash |
| Context Window | 1,000k tokens | 1,000k tokens | Tie |
| AA Intelligence Index | 33/100 | Unrated | Unrated |
| Streaming Latency | Fast | Moderate | - |
Key Architectural Takeaways
- Input Token Cost: DeepSeek Flash is $0.15/1M vs Grok 4.3 at $1.25/1M
- Output Token Cost: DeepSeek Flash is $0.60/1M vs Grok 4.3 at $2.50/1M
- Context Window: DeepSeek Flash supports 1,000k tokens vs Grok 4.3 with 1,000k tokens
- Benchmark Intelligence Rating: not rated for one or both models
- Inference Latency: DeepSeek Flash is rated Fast vs Grok 4.3 rated Moderate
Calculate Your Team's Exact Bill Difference
Drag the sliders below to see real-time cost divergences based on your daily token consumption.
Deploying DeepSeek Flash over Grok 4.3 saves $30.75/mo ($369/yr) at this volume.
Frequently Asked Questions
Is DeepSeek Flash cheaper than Grok 4.3?
DeepSeek Flash is significantly more economical, charging $0.15/1M input compared to $1.25/1M for Grok 4.3.
Which model should I choose for production?
If your primary constraint is API cost and high query throughput, choose DeepSeek Flash. If you require peak reasoning accuracy and complex tool use, DeepSeek Flash is recommended.
How does context window compare between DeepSeek Flash and Grok 4.3?
DeepSeek Flash offers the larger context window (1,000k tokens), allowing you to pass significantly larger codebases or documents without chunking.
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