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GPT-5 mini vs DeepSeek V4 Flash
Budget AI showdown — which cheap model delivers the best value?
Pricing data verified: Jul 2, 2026
| Specification | GPT-5 mini | DeepSeek V4 Flash |
|---|---|---|
| Input Price (per 1M tokens) | $0.25 | $0.14 |
| Output Price (per 1M tokens) | $2.00 | $0.28 |
| Context Window | 272K | 1M |
| Tier | Budget | Budget |
| Provider | OpenAI | DeepSeek |
| Input Savings | Baseline | 44% cheaper |
| Output Savings | Baseline | 86% cheaper |
| Cost at 1M input + 500K output | $1.25 | $0.28 |
Calculate Your Exact Costs
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Which Model for Which Use Case?
Cost Optimization
At $0.25/$2.00 per 1M, GPT-5 mini is competitive. DeepSeek V4 Flash at $0.14/$0.28 per 1M is also affordable and has its own strengths.
Quality vs Cost
GPT-5 mini (budget) and DeepSeek V4 Flash (budget) both deliver strong results. Test with your specific workload to find the best fit.
Enterprise Scale
At 10M input + 5M output/month, the cost difference is $9.70/mo ($116/year). Significant savings with DeepSeek V4 Flash.
Startup & Prototyping
Building an MVP? GPT-5 mini at $1.25/mo costs $0.97 compared to DeepSeek V4 Flash at $0.28/mo.
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Frequently Asked Questions
Are GPT-5 mini and DeepSeek V4 Flash the same price?
No. GPT-5 mini: $0.25/M input, $2.00/M output. DeepSeek V4 Flash: $0.14/M input, $0.28/M output.
Which is better for coding — GPT-5 mini or DeepSeek V4 Flash?
Both are capable for coding. GPT-5 mini (budget tier) at $2.00/M output vs DeepSeek V4 Flash (budget tier) at $0.28/M output.
How much would I save using GPT-5 mini instead of DeepSeek V4 Flash?
At 1M input + 500K output/month: GPT-5 mini costs $1.25 vs DeepSeek V4 Flash's $0.28 — extra cost of $0.97/mo. At scale (10M+5M): spend $9.70/mo ($116/year).
When should I choose DeepSeek V4 Flash over GPT-5 mini?
Choose DeepSeek V4 Flash when you need its specific capabilities or ecosystem. Choose GPT-5 mini for better value (78% cheaper at scale).
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