Grok 4.20 Reasoning Gv2 API Pricing

Grok 4.20 Reasoning Gv2 pricing by provider

1 listing across 1 provider. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.

Other Grok 4.20 Reasoning Gv2 prices on xAI

What Grok 4.20 Reasoning Gv2 costs in practice

1,000 requests with 2,000 input and 500 output tokens each

100 long-document requests with 100,000 input and 2,000 output tokens each

Grok 4.20 Reasoning Gv2 features

• Function calling
• Structured output
• Image input
• Reasoning
• Prompt caching
• Web search

Use Grok 4.20 Reasoning Gv2 with LiteLLM

Call Grok 4.20 Reasoning Gv2 through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/chat/completions. LiteLLM tracks the cost of every request at these prices.

from litellm import completion

response = completion(
    model="xai/grok-4.20-reasoning-gv2",
    messages=[{"role": "user", "content": "Hello!"}],
)

model_list:
  - model_name: grok-4.20-reasoning-gv2
    litellm_params:
      model: xai/grok-4.20-reasoning-gv2
      api_key: os.environ/XAI_API_KEY

curl http://0.0.0.0:4000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "grok-4.20-reasoning-gv2",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Grok 4.20 Reasoning Gv2 FAQ

More xAI models

• Grok 4.20 Beta$1.25 / $2.50 per 1M tokens
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• Grok 4.20 Beta Latest Reasoning$1.25 / $2.50 per 1M tokens
• Grok 4.20 Beta Non Reasoning$1.25 / $2.50 per 1M tokens
• Grok 4.20 Beta Reasoning$1.25 / $2.50 per 1M tokens
• Grok 4.20 Experimental Beta$1.25 / $2.50 per 1M tokens
• Grok 4.20 Experimental Beta 0304 Non Reasoning$1.25 / $2.50 per 1M tokens
• Grok 4.20 Experimental Beta 0304 Reasoning$1.25 / $2.50 per 1M tokens