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DeepSeek V4 Flash vs GPT-5.4 Nano
List-price comparison · DeepSeek V4 Flash details · GPT-5.4 Nano details
For a typical workload (100,000 requests / mo), DeepSeek V4 Flash costs 74% less — $19.60/mo vs $74.00/mo.
| DeepSeek V4 Flash | GPT-5.4 Nano | |
|---|---|---|
| Input / 1M tokens | $0.098 | $0.200 |
| Output / 1M tokens | $0.196 | $1.25 |
| Typical request (1,200 in + 400 out) | $0.0002 | $0.0007 |
| Context window | 1,048,576 tokens | 400k tokens |
| Max output | — | 128k tokens |
| Tier | Flash | Flash |
| Provider | DeepSeek | OpenAI |
Projected monthly cost
1,000 requests / month$0.196 vs $0.7410,000 requests / month$1.96 vs $7.40100,000 requests / month$19.60 vs $74.00
Rows open both models in the calculator — adjust volume and token counts there.
DeepSeek V4 Flash
Auto-synced from OpenRouter — no editorial write-up yet.
GPT-5.4 Nano
Cheapest OpenAI option for high-throughput classification, tagging, and routing — ideal as a first-pass filter before a stronger model.
Limited reasoning depth means it should be treated as a triage layer, not a final answer source, for anything business-critical.
More comparisons
Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.