Model ID: grok-4.20-0309-reasoning · Type: chat · Provider: xAI
Endpoints: /v1/chat/completions · /v1/messages
| Input (per 1M tokens) | $1.25 USD |
| Output (per 1M tokens) | $2.5 USD |
| Cache read (per 1M tokens) | $0.2 USD |
from openai import OpenAI
client = OpenAI(api_key="sk-...", base_url="https://api.router.ai/v1")
resp = client.chat.completions.create(
model="grok-4.20-0309-reasoning",
messages=[{"role": "user", "content": "Hello"}],
)
print(resp.choices[0].message.content)Grok 4.20 Reasoning (`grok-4.20-0309-reasoning`) is billed per usage at $1.25/1M in · $2.5/1M out, in USD. Current pricing is always listed at https://openbat.ai/models/grok-4.20-0309-reasoning.
Send a request to https://api.router.ai/v1/v1/chat/completions with the header `Authorization: Bearer <your API key>` and `"model": "grok-4.20-0309-reasoning"`. The API is OpenAI-compatible, so any OpenAI SDK works by changing base_url to https://api.router.ai/v1 — no other code change.
Grok 4.20 Reasoning can be called on: /v1/chat/completions; /v1/messages.
Grok 4.20 Reasoning accepts up to 1,000,000 input tokens and can return up to 32,768 output tokens. Requests exceeding the input limit are rejected before reaching the model.
Grok 4.20 Reasoning supports: vision, function_calling, prompt_caching.
Grok 4.20 Reasoning is a chat model from xAI, available through the openbat.ai gateway with the same API key as every other model.
Call it through the openbat.ai OpenAI-compatible endpoint (API base: https://api.router.ai/v1). AI agents can discover and call every model on this gateway through MCP (https://mcp.router.ai/mcp) with no manual integration.