DeepSeek V3 0324 vs GPT 5.4

Direct comparison between deepseek and openai for chat models. Specs, prices, strengths, weaknesses — decide on facts.

At a glance

  • · Cheaper: DeepSeek V3 0324
  • · Longer context window: GPT 5.4 at 400,000 tokens
  • · DeepSeek V3 0324: One of the cheapest models with serious coding quality
  • · GPT 5.4: Better tool-use accuracy than GPT-5.3 with shorter outputs

Spec comparison

SpecDeepSeek V3 0324GPT 5.4
Providerdeepseekopenai
Input per 1M tokens$0.27 / 1M$2.50 / 1M
Output per 1M tokens$1.12 / 1M$15.00 / 1M
Context window128,000 tok400,000 tok
Max output8,192 tok16,384 tok
Knowledge cutoff2026-01
Vision
Tool calling
JSON mode
Structured output
Reasoning

DeepSeek V3 0324 — strengths

  • +One of the cheapest models with serious coding quality
  • +MoE architecture — low active parameters per token
  • +Solid on math, comparable to western mid-tier models

GPT 5.4 — strengths

  • +Better tool-use accuracy than GPT-5.3 with shorter outputs
  • +Native vision for screenshots, charts, and documents
  • +400k context — fits code repos and long conversations

DeepSeek V3 0324 — weaknesses

  • Compliance concerns for some EU/US enterprise contexts
  • Knowledge cutoff stronger on Chinese sources than western ones

GPT 5.4 — weaknesses

  • Pricier per token than Sonnet 4.6 at comparable coding quality
  • Reasoning mode noticeably increases latency over standard calls
Details: DeepSeek V3 0324Details: GPT 5.4