DeepSeek V4 Pro vs GPT-5.4
Side-by-side comparison of API pricing, specs, benchmarks, and capabilities
|
by DeepSeek
3 providers:
DeepSeek $0.435/$0.870
Fireworks $1.74/$3.48
Together $1.74/$3.48
|
by OpenAI
|
|
|---|---|---|
| Overview | ||
| Status | Current mid tier | Current flagship |
| Released | Apr 24, 2026 | Aug 15, 2025 |
| Pricing per million tokens | ||
| Input | $0.435/Mtok | $2.50/Mtok |
| Output | $0.870/Mtok | $15.00/Mtok |
| Blended avg | $0.652/Mtok | $8.75/Mtok |
| Cached input | $0.004/Mtok | $0.250/Mtok |
| Specifications | ||
| Context window | 1M tokens | 1M tokens |
| Parameters | Proprietary | Proprietary |
| Speed (TPS) | — | — |
| Modalities | ||
| Input |
text
|
textimage
|
| Benchmarks from Vellum LLM Leaderboard | ||
| Avg benchmark score | 64.1 | 78.7 |
| Perf / dollar | 98.2 | 9 |
| GPQA Diamond | 72 | 88 |
| SWE-Bench | 50 | 75 |
| HumanEval | 88 | 94.5 |
| MATH 500 | 80 | 92 |
| Providers | ||
| Available from |
DeepSeek — $0.435/$0.870/Mtok
Fireworks — $1.74/$3.48/Mtok
Together — $1.74/$3.48/Mtok
|
OpenAI — $2.50/$15.00/Mtok
|
Cost at scale — 1M tokens (50/50 input/output)
| Volume | DeepSeek V4 Pro | GPT-5.4 | Savings |
|---|---|---|---|
| 1M tokens | $0.65 | $8.75 | $8.1 (92.6%) |
| 10M tokens | $6.53 | $87.5 | $80.97 (92.5%) |
| 100M tokens | $65.25 | $875 | $809.75 (92.5%) |
| 1000M tokens | $652.5 | $8750 | $8097.5 (92.5%) |
Summary
DeepSeek V4 Pro by DeepSeek costs $0.435/Mtok input and $0.870/Mtok output, with a 1M-token context window. It supports text input and is available from 3 providers.
GPT-5.4 by OpenAI costs $2.50/Mtok input and $15.00/Mtok output, with a 1M-token context window. It supports text, image input.
On a blended cost basis, DeepSeek V4 Pro is 1241% cheaper than GPT-5.4.
On benchmarks, GPT-5.4 scores higher (78.7 vs 64.1) on average. In terms of value, DeepSeek V4 Pro has better performance per dollar (98.2 vs 9).
Note: Pricing is per million tokens. Actual costs vary with usage patterns, prompt caching, and batch discounts. Always verify against official provider pricing pages.