DeepSeek V3.2 (Chat) vs GPT-5.4 Mini
Complete pricing and performance comparison between DeepSeek's DeepSeek V3.2 (Chat) and OpenAI's GPT-5.4 Mini.
Quick Verdict
Cheaper
DeepSeek V3.2 (Chat)
2.7x cheaper input, 10.7x cheaper output
Larger Context
GPT-5.4 Mini
400K vs 128K
Pricing Comparison
| Spec | DeepSeek V3.2 (Chat) | GPT-5.4 Mini | Difference |
|---|---|---|---|
| Provider | DeepSeek | OpenAI | |
| Input / 1M tokens | $0.28 | $0.75 | DeepSeek V3.2 (Chat) is 63% more expensive |
| Output / 1M tokens | $0.42 | $4.5 | DeepSeek V3.2 (Chat) is 91% more expensive |
| Context Window | 128K | 400K | 3x difference |
| Max Output | 8K | 128K | |
| Tokenizer | cl100k_base | o200k_base |
Performance Benchmarks
| Metric | DeepSeek V3.2 (Chat) | GPT-5.4 Mini | Winner |
|---|---|---|---|
| Quality Index | 32 | -- | N/A |
| Output Speed | 34 tok/s | -- | N/A |
| Value (Quality/$) | 114.6 | -- | Higher = better value |
Benchmark data from Artificial Analysis. Quality Index is a composite score across reasoning, coding, and knowledge tasks.
Cost at Scale
Estimated cost at different usage levels (3:1 input-to-output token ratio, typical for chat).
| Usage | DeepSeek V3.2 (Chat) | GPT-5.4 Mini | Savings |
|---|---|---|---|
Single request 1K in / 300 out | $0.0004 | $0.0021 | DeepSeek V3.2 (Chat) saves $0.0017 |
10 requests 10K in / 3K out | $0.0041 | $0.021 | DeepSeek V3.2 (Chat) saves $0.017 |
100 requests 100K in / 30K out | $0.041 | $0.210 | DeepSeek V3.2 (Chat) saves $0.169 |
1,000 requests 1M in / 300K out | $0.406 | $2.10 | DeepSeek V3.2 (Chat) saves $1.69 |
10,000 requests 10M in / 3M out | $4.06 | $21.00 | DeepSeek V3.2 (Chat) saves $16.94 |
1M requests/mo 1B in / 300M out | $406.00 | $2100.00 | DeepSeek V3.2 (Chat) saves $1694.00 |
Pros & Cons
DeepSeek V3.2 (Chat) Strengths
- +Cheaper input tokens
- +Cheaper output tokens
GPT-5.4 Mini Strengths
- +Larger context window (400K vs 128K)
- +Higher max output tokens
When to Use Each Model
Choose DeepSeek V3.2 (Chat) for
- →Budget-conscious projects where cost is the primary factor
Choose GPT-5.4 Mini for
- →Long documents, large codebases, or multi-turn conversations
- →Generating long-form content or detailed code
Frequently Asked Questions
Which is cheaper, DeepSeek V3.2 (Chat) or GPT-5.4 Mini?
For input tokens, DeepSeek V3.2 (Chat) is 2.7x cheaper at $0.28/1M tokens. For output tokens, DeepSeek V3.2 (Chat) is 10.7x cheaper at $0.42/1M tokens. At typical usage (1M input + 300K output), DeepSeek V3.2 (Chat) costs $0.406 vs GPT-5.4 Mini at $2.10.
What's the context window difference?
DeepSeek V3.2 (Chat) supports 128K context (128,000 tokens), while GPT-5.4 Mini supports 400K (400,000 tokens). GPT-5.4 Mini can handle 3x more context in a single request.
Which model has better benchmarks?
When should I choose DeepSeek V3.2 (Chat) over GPT-5.4 Mini?
Choose DeepSeek V3.2 (Chat) when you need: Cheaper input tokens, Cheaper output tokens. Choose GPT-5.4 Mini when you need: Larger context window (400K vs 128K), Higher max output tokens.
How much would 10,000 API requests cost?
At 1K input + 300 output tokens per request (typical chat): DeepSeek V3.2 (Chat) = $4.06, GPT-5.4 Mini = $21.00. At 10K input + 1K output per request (longer conversations): DeepSeek V3.2 (Chat) = $32.20, GPT-5.4 Mini = $120.00.
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