DeepSeek V4 Pro vs GPT-5.4
Side-by-side comparison of API pricing, specs, benchmarks, and capabilities
| Specification |
by DeepSeek
4 providers:
DeepSeek $0.435/$0.870
Fireworks $1.74/$3.48
Together $1.74/$3.48
DeepInfra $1.30/$2.60
|
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 | $0.544/Mtok | $5.63/Mtok |
| Cached input | $0.004/Mtok | $0.250/Mtok |
| Price basis | Correct as published today. DeepSeek has announced that from 16:00 UTC on 2026-08-16 this model moves to peak/off-peak billing: peak $1.32 input / $0.044 cached input / $3.96 output per 1M tokens, off-peak exactly half ($0.66 / $0.022 / $1.98). Peak hours are 01:00-04:00 and 06:00-10:00 UTC; every other hour is off-peak. This row tracks the flat rate DeepSeek charges until that moment, and switches to the peak rate when it takes effect. | — |
| Specifications | ||
| Context window | 1M tokens | 1M tokens |
| Parameters | Proprietary | Proprietary |
| Speed (TPS) | — | — |
| Modalities | ||
| Input |
text
|
textimage
|
| Benchmarks sources: Vellum LLM Leaderboard / OpenAI model card, Artificial Analysis | ||
| Avg benchmark score | 73.5 | 78.7 |
| Perf / dollar | 135.2 | 14 |
| GPQA Diamond | 90.1 | 88 |
| SWE-Bench Verified | 80.6 vendor | 75 |
| Humanity's Last Exam | 48.2 | 40.2 |
| ARC-AGI 2 | 30 | 50 |
| AIME 2025 | 75 | 95.5 |
| MMMLU | 82 | 88 |
| BFCL | 72 | 85 |
| HumanEval | 80.6 | 94.5 |
| MATH 500 | 80 | 92 |
| LiveCodeBench | 93.5 | — |
| MCP Atlas | 73.6 | — |
| BrowseComp | 83.4 | — |
| Independent composite scores each on its own scale — not part of the average above | ||
| AA Intelligence Index | 53.2 | 53.1 |
| AA Agentic Index | 49.6 | 44.2 |
| AA-Omniscience Index (−100–100) | 0.8 | 5.8 |
| LMSYS Chatbot Arena | 1458.2 ELO | 1465.5 ELO |
| GDPval-AA v2 | 1590 ELO | — |
| Providers | ||
| Available from |
DeepSeek — $0.435/$0.870/Mtok
Fireworks — $1.74/$3.48/Mtok
Together — $1.74/$3.48/Mtok
DeepInfra — $1.30/$2.60/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 | $0.54 | $5.63 | $5.08 (90.3%) |
| 10M tokens | $5.44 | $56.25 | $50.81 (90.3%) |
| 100M tokens | $54.37 | $562.5 | $508.13 (90.3%) |
| 1000M tokens | $543.75 | $5625 | $5081.25 (90.3%) |
When to pick which
distilled from the pricing and spec data above- cost dominates: $0.544/Mtok blended vs $5.63 — 90.3% less on the same 50/50 token mix
- your workload re-reads context (agents, RAG, long chats): cached input costs $0.004/Mtok — 99% off its list input price
- provider flexibility: available from 4 providers, so you can price-shop hosts or fail over
- raw capability matters more than price: 78.7 vs 73.5 average benchmark score
The cheaper option here — DeepSeek V4 Pro costs $0.544/Mtok blended on DeepSeek.
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 4 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 90.3% cheaper than GPT-5.4.
On benchmarks, GPT-5.4 scores higher (78.7 vs 73.5) on average. In terms of value, DeepSeek V4 Pro has better performance per dollar (135.2 vs 14).
Note: Pricing is per million tokens. Actual costs vary with usage patterns, prompt caching, and batch discounts. Always verify against official provider pricing pages.