DeepSeek V4 Pro 0423 vs GPT-5.4
API pricing, context window and capabilities for DeepSeek V4 Pro 0423 and GPT-5.4, side by side. Prices are the cheapest serving route per 1M tokens, verified against LiteLLM and OpenRouter.
Verdict
computed from the published numbersDeepSeek V4 Pro 0423 wins on price and on intelligence. GPT-5.4 wins on coding and on context window.
Price
DeepSeek V4 Pro 0423
Coding
GPT-5.4
Intelligence
DeepSeek V4 Pro 0423
Context window
GPT-5.4
Key takeaways
who wins on what, from the published numbersDeepSeek V4 Pro 0423 wins
- Cheaper input ($0.43 vs $2.50 /1M)
- Cheaper output ($0.87 vs $15.00 /1M)
- Higher max output (512K vs 128K)
- More serving providers (10 vs 4)
GPT-5.4 wins
- Larger context window (1M vs 1.1M)
- Supports vision
- Has web search
Cheaper overall
DeepSeek V4 Pro 0423
$0.43 + $0.87 /1M
Larger context
GPT-5.4
1.1M
More providers
DeepSeek V4 Pro 0423
10 providers
Pricing & specs
cheapest serving route · per 1M tokens| DeepSeek V4 Pro 0423 | GPT-5.4 | |
|---|---|---|
| Input $/1M | $0.43 best | $2.50 |
| Output $/1M | $0.87 best | $15.00 |
| Context window | 1M | 1.1M best |
| Max output | 512K best | 128K |
| Serving providers | 10 best | 4 |
| Released | 2026-04-24 | 2026-03-05 |
Benchmarks
Artificial Analysis indices, side by side| DeepSeek V4 Pro 0423 | GPT-5.4 | |
|---|---|---|
| Intelligence | 53.2 best | 53.1 |
| Coding | 68.8 | 71.0 best |
| GPQA Diamond | 93% best | 92% |
| Output speed | 68 t/s | 135 t/s best |
| Latency (TTFT) | 1.75s best | 143.52s |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
DeepSeek V4 Pro 0423
via Tencent
$3.04
GPT-5.4
via Databricks
$27
Capabilities
feature support, side by side| Feature | DeepSeek V4 Pro 0423 | GPT-5.4 |
|---|---|---|
| Vision | — | ✓ |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Audio | — | — |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Web search | — | ✓ |
Related comparisons
Frequently asked questions
Which is cheaper, DeepSeek V4 Pro 0423 or GPT-5.4?
DeepSeek V4 Pro 0423 is cheaper for input ($0.43 vs $2.50 per 1M tokens). DeepSeek V4 Pro 0423 is cheaper for output ($0.87 vs $15.00 per 1M tokens).
What is the context window difference between DeepSeek V4 Pro 0423 and GPT-5.4?
DeepSeek V4 Pro 0423 has a 1M-token context window and GPT-5.4 has 1.1M tokens, so GPT-5.4 can take a larger prompt.
How do DeepSeek V4 Pro 0423 and GPT-5.4 compare on benchmarks?
On the tracked Artificial Analysis indices, GPT-5.4 leads on coding, and DeepSeek V4 Pro 0423 leads on intelligence.
Pricing verified against LiteLLM + OpenRouter + provider pages · refreshed daily
Every weekday
AI moves fast. Here's your debrief.
News, analysis, tools, and more.
For people who build with AI