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Model comparison

Grok Build 0.1 vs Qwen3.7 Flash

Grok Build 0.1 (xAI) and Qwen3.7 Flash (Qwen) 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.

Grok Build 0.1Qwen3.7 Flash
Input price per 1M$1.00$0.030
Output price per 1M$2.00$0.130
Context window256K tokens1M tokens
Max output256K tokens131K tokens
Input typestext, image, pdftext, image, video
Capabilitiestools, JSON, vision, reasoningtools, JSON, vision, reasoning
AuthorxAIQwen

What a month costs on each

WorkloadGrok Build 0.1Qwen3.7 Flash
Chatbot month (15M in, 4M out)$23.00$0.970
RAG month (40M in, 3M out)$46.00$1.59
Coding month (60M in, 10M out)$80.00$3.10

On a typical 75/25 input-output mix, Qwen3.7 Flash costs less (about 96% less than Grok Build 0.1). Qwen3.7 Flash 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": "x-ai/grok-build-0.1", "messages": [{"role": "user", "content": "Hello"}]}'

# the other one: change the model string
  -d '{"model": "qwen/qwen3.7-flash:free", ...}'

Common questions

Which is cheaper, Grok Build 0.1 or Qwen3.7 Flash?

Qwen3.7 Flash is cheaper on a typical mix of 75% input and 25% output tokens, by about 96%. Through Rapid Router both are billed at the provider list price per million tokens.

Which has the larger context window?

Qwen3.7 Flash, at 1M tokens. Grok Build 0.1 offers 256K tokens.

Can I switch between Grok Build 0.1 and Qwen3.7 Flash without changing code?

Yes. Both are callable at https://rapidrouter.ai/api/v1 with the same OpenAI-compatible request; only the model string changes (x-ai/grok-build-0.1 or qwen/qwen3.7-flash:free).

How do I pay for Grok Build 0.1 or Qwen3.7 Flash?

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

More Grok models: xAI API pricing · More Qwen: Qwen API pricing