GPT-5.4 mini vs DeepSeek V3.2 (Chat)
Pricing, context window, and benchmark comparison · Last updated April 2026
DeepSeek V3.2 (Chat) is cheaper than GPT-5.4 mini at $0.28/1M/1M vs $0.75/1M/1M input tokens — a 2.7x cost difference. GPT-5.4 mini scores higher on quality benchmarks (ELO 1360). Choose DeepSeek V3.2 (Chat) for cost-sensitive workloads; choose GPT-5.4 mini for maximum quality.
Which is cheaper: GPT-5.4 mini or DeepSeek V3.2 (Chat)?
DeepSeek V3.2 (Chat) is the cheaper option at $0.28/1M per 1M input tokens, compared to $0.75/1M for GPT-5.4 mini. That is a 2.7x cost difference on input tokens. Output pricing follows a similar pattern: GPT-5.4 mini charges $4.50/1M/1M vs $0.42/1M/1M for DeepSeek V3.2 (Chat).
Which has better quality: GPT-5.4 mini or DeepSeek V3.2 (Chat)?
Based on LMSYS Chatbot Arena rankings, GPT-5.4 mini achieves a higher ELO score (1360 vs 1355), suggesting stronger performance on open-ended tasks. GPT-5.4 mini excels at strong mid-tier quality close to gpt-5.4 at 1/3 the price. DeepSeek V3.2 (Chat) is known for frontier-class quality at ~10x lower cost than us flagships.
Which should you choose: GPT-5.4 mini or DeepSeek V3.2 (Chat)?
- → Strong mid-tier quality close to GPT-5.4 at 1/3 the price
- → Fast inference and low latency
- → Same 272K context window as flagship
- → Frontier-class quality at ~10x lower cost than US flagships
- → Cache-hit input pricing of $0.028/1M (90% off)
- → Open weights available
Frequently Asked Questions
Which is cheaper: GPT-5.4 mini or DeepSeek V3.2 (Chat)?
DeepSeek V3.2 (Chat) is cheaper at $0.28/1M per 1M input tokens, making it 2.7x more affordable.
Which has better quality: GPT-5.4 mini or DeepSeek V3.2 (Chat)?
GPT-5.4 mini scores higher on the LMSYS Chatbot Arena with an ELO of 1360, suggesting better overall quality for most tasks.
Which has a larger context window: GPT-5.4 mini or DeepSeek V3.2 (Chat)?
GPT-5.4 mini has a larger context window at 272K tokens.
Should I choose GPT-5.4 mini or DeepSeek V3.2 (Chat)?
Choose DeepSeek V3.2 (Chat) if cost is the priority. Choose GPT-5.4 mini if benchmark quality is most important. Consider your specific use case: GPT-5.4 mini is best for customer-support and data-extraction, while DeepSeek V3.2 (Chat) excels at coding and low-cost.
Is GPT-5.4 mini or DeepSeek V3.2 (Chat) open source?
GPT-5.4 mini is proprietary. DeepSeek V3.2 (Chat) is open source.