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Model comparison

DeepSeek V4 Pro vs Gemini 4 Argon

DeepSeek V4 Pro (DeepSeek) and Gemini 4 Argon (Google) side by side: what each costs per million tokens through Rapid Router, how much context each takes, what each supports, and where independent benchmarks place them. Same API, same key; switching is a one-string change.

DeepSeek V4 ProGemini 4 Argon
Input price per 1M$1.30$4.00
Output price per 1M$2.60$20.00
Context window1M tokens1M tokens
Max output393K tokens33K tokens
Input typestexttext, image, video, audio, pdf
Capabilitiestools, JSON, reasoningtools, JSON, vision, audio, reasoning
AuthorDeepSeekGoogle

What a month costs on each

WorkloadDeepSeek V4 ProGemini 4 Argon
Chatbot month (15M in, 4M out)$29.90$140.00
RAG month (40M in, 3M out)$59.80$220.00
Coding month (60M in, 10M out)$104.00$440.00

On a typical 75/25 input-output mix, DeepSeek V4 Pro costs less (about 80% less than Gemini 4 Argon). Gemini 4 Argon takes the longer prompt at 1M tokens. Try your own numbers in the cost calculator.

Call either one

curl https://rapidrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $RAPIDROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "deepseek/deepseek-v4-pro", "messages": [{"role": "user", "content": "Hello"}]}'

# the other one: change the model string
  -d '{"model": "google/gemini-4-argon", ...}'

Common questions

Which is cheaper, DeepSeek V4 Pro or Gemini 4 Argon?

DeepSeek V4 Pro is cheaper on a typical mix of 75% input and 25% output tokens, by about 80%. Through Rapid Router both are billed at the provider list price per million tokens.

Which has the larger context window?

Gemini 4 Argon, at 1M tokens. DeepSeek V4 Pro offers 1M tokens.

Can I switch between DeepSeek V4 Pro and Gemini 4 Argon without changing code?

Yes. Both are callable at https://rapidrouter.ai/api/v1 with the same OpenAI-compatible request; only the model string changes (deepseek/deepseek-v4-pro or google/gemini-4-argon).

How do I pay for DeepSeek V4 Pro or Gemini 4 Argon?

Top up a Rapid Router balance by card in US dollars, and both models debit that balance per request.

More DeepSeek models: DeepSeek API pricing · More Gemini: Google API pricing