DeepSeek V3.2 (Chat) vs GPT-5.4 Nano
Complete pricing and performance comparison between DeepSeek's DeepSeek V3.2 (Chat) and OpenAI's GPT-5.4 Nano.
Quick Verdict
Cheaper
GPT-5.4 Nano (input) / DeepSeek V3.2 (Chat) (output)
Input: 1.4x diff, Output: 3.0x diff
Larger Context
GPT-5.4 Nano
400K vs 128K
Pricing Comparison
| Spec | DeepSeek V3.2 (Chat) | GPT-5.4 Nano | Difference |
|---|---|---|---|
| Provider | DeepSeek | OpenAI | |
| Input / 1M tokens | $0.28 | $0.2 | GPT-5.4 Nano is 29% more expensive |
| Output / 1M tokens | $0.42 | $1.25 | DeepSeek V3.2 (Chat) is 66% more expensive |
| Context Window | 128K | 400K | 3x difference |
| Max Output | 8K | 128K | |
| Tokenizer | cl100k_base | o200k_base |
Performance Benchmarks
| Metric | DeepSeek V3.2 (Chat) | GPT-5.4 Nano | Winner |
|---|---|---|---|
| Quality Index | 32 | -- | N/A |
| Output Speed | 34 tok/s | -- | N/A |
| Value (Quality/$) | 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 Nano | Savings |
|---|---|---|---|
Single request 1K in / 300 out | $0.0004 | $0.0006 | Same |
10 requests 10K in / 3K out | $0.0041 | $0.0057 | DeepSeek V3.2 (Chat) saves $0.0017 |
100 requests 100K in / 30K out | $0.041 | $0.058 | DeepSeek V3.2 (Chat) saves $0.017 |
1,000 requests 1M in / 300K out | $0.406 | $0.575 | DeepSeek V3.2 (Chat) saves $0.169 |
10,000 requests 10M in / 3M out | $4.06 | $5.75 | DeepSeek V3.2 (Chat) saves $1.69 |
1M requests/mo 1B in / 300M out | $406.00 | $575.00 | DeepSeek V3.2 (Chat) saves $169.00 |
Pros & Cons
DeepSeek V3.2 (Chat) Strengths
- +Cheaper output tokens
GPT-5.4 Nano Strengths
- +Cheaper input tokens
- +Larger context window (400K vs 128K)
- +Higher max output tokens
When to Use Each Model
Choose DeepSeek V3.2 (Chat) for
- →Projects already integrated with DeepSeek's ecosystem
Choose GPT-5.4 Nano 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 Nano?
For input tokens, GPT-5.4 Nano is 1.4x cheaper at $0.2/1M tokens. For output tokens, DeepSeek V3.2 (Chat) is 3.0x cheaper at $0.42/1M tokens. At typical usage (1M input + 300K output), DeepSeek V3.2 (Chat) costs $0.406 vs GPT-5.4 Nano at $0.575.
What's the context window difference?
DeepSeek V3.2 (Chat) supports 128K context (128,000 tokens), while GPT-5.4 Nano supports 400K (400,000 tokens). GPT-5.4 Nano 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 Nano?
Choose DeepSeek V3.2 (Chat) when you need: Cheaper output tokens. Choose GPT-5.4 Nano when you need: Cheaper input tokens, 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 Nano = $5.75. At 10K input + 1K output per request (longer conversations): DeepSeek V3.2 (Chat) = $32.20, GPT-5.4 Nano = $32.50.
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