DeepSeek V4 Pro vs Grok 4.3

DeepSeek V4 Pro and Grok 4.3 are both current production-tier models. DeepSeek V4 Pro is meaningfully cheaper at $0.43 / $0.87 per 1M. Grok 4.3 leads on instruction following, tool use.

Specs side by side

Metric
DeepSeek
DeepSeek V4 Pro
xAI
Grok 4.3
Input price (per 1M)$0.435$1.25
Output price (per 1M)$0.87$2.5
Context window1M tokens1M tokens
Speed tierbalancedbalanced
Open weightsYesNo
EU regionNoNo
Free tierNoNo
Prompt cachingYesYes
Vision inputNoYes
Extended thinkingYesYes

When to choose each

DeepSeek

Choose DeepSeek V4 Pro if…

  • Cost is a priority ($0.43 / $0.87 per 1M vs $1.25 / $2.5 per 1M)
  • You need open weights for self-hosting or fine-tuning
xAI

Choose Grok 4.3 if…

  • You need image input / vision
  • Instruction following is central to your workload
  • Tool use is central to your workload

Benchmark delta

DeepSeek V4 Pro leads on

DeepSeek V4 Pro has no meaningful benchmark lead in this pair.

Grok 4.3 leads on

  • Instruction following
  • Tool use

FAQ — DeepSeek V4 Pro vs Grok 4.3

DeepSeek V4 Pro vs Grok 4.3 — which is better?

DeepSeek V4 Pro and Grok 4.3 are both current production-tier models. DeepSeek V4 Pro is meaningfully cheaper at $0.43 / $0.87 per 1M. Grok 4.3 leads on instruction following, tool use. The right pick depends on your use case — see "When to choose each" above for a data-driven decision.

How does DeepSeek V4 Pro pricing compare to Grok 4.3?

DeepSeek V4 Pro costs $0.43 / $0.87 per 1M vs Grok 4.3 at $1.25 / $2.5 per 1M. DeepSeek V4 Pro is cheaper on output tokens by roughly 187%. Both support prompt caching, which reduces effective cost by 80-90% on repeat system prompts.

Does DeepSeek V4 Pro or Grok 4.3 have the bigger context window?

Grok 4.3 has a 1M-token context window — 1× the 1M context of DeepSeek V4 Pro. Enough for entire codebases, books, or multi-document RAG.

Is there a free tier for DeepSeek V4 Pro or Grok 4.3?

DeepSeek V4 Pro: no — No free tier on the official API — but at $0.435/$0.87 per 1M it is near-free vs frontier peers. Grok 4.3: no — X Premium / SuperGrok includes Grok web chat; API is paid.

Which is better for coding — DeepSeek V4 Pro or Grok 4.3?

Both leads on coding benchmarks (DeepSeek V4 Pro: 91/100, Grok 4.3: 91/100). For production coding agents also weigh tool-use performance — DeepSeek V4 Pro scores 86, Grok 4.3 scores 90.