Home / Compare / DeepSeek V4 Pro 0423 vs GPT-5.4

DeepSeek V4 Pro 0423 vs GPT-5.4

For a typical chat reply (2,000 tokens in, 400 out), GPT-5.4 costs 4.1× as much as DeepSeek V4 Pro 0423: $11.00 against $2.67 per 1,000 requests at list price on 2026-09-28.

DeepSeek V4 Pro 0423GPT-5.4
Input, per 1M tokens$0.955$2.50
Output, per 1M tokens$1.91$15.00
Context window1.05M1.05M
Classification or routing (600 tokens in, 10 out), per 1,000$0.592$1.65
Chat reply (2,000 in, 400 out), per 1,000$2.67$11.00
Retrieval-augmented answer (8,000 in, 500 out), per 1,000$8.60$27.50
Confidence signalyesno
Tool callingyesyes

Which one should carry your traffic?

If DeepSeek V4 Pro 0423 answers your requests as well as GPT-5.4, moving that traffic saves 76% on chat-shaped requests. Averages cannot tell you whether it does for your requests. DeepSeek V4 Pro 0423 exposes a confidence signal, so Gimbix can let it answer first and hand unsure cases to GPT-5.4.

DeepSeek V4 Pro 0423 profile · GPT-5.4 profile · Measure it on your traffic