Grok 3 Fast Latest

grok-3-fast-latest by xAI Released January 6, 2026
ReasoningFunction callingStructured outputPrompt cachingWeb searchComputer useImage inputFile inputAudio inputVideo inputEU hostingFree endpointUp to % off
Input from
$5 / 1M
Output from
$25 / 1M
Cached input from
$1.25 / 1M
Context window
131K
Endpoints
1
from 1 providers
Regions
United States

About Grok 3 Fast Latest

Grok 3 Fast Latest is a chat model by xAI, available on Eden AI through 1 endpoint from 1 provider, from $5 per million input tokens and $25 per million output tokens, with a context window of up to 131K tokens.

Providers and prices

1 endpoints from 1 providers, cheapest first, in USD per million tokens. Every one is called with the same Eden AI key: pin one with its endpoint ID, or let Eden AI route for you. .

Endpoint
Region
Context
Input / 1M
Output / 1M
Cached / 1M
Supports
xAI (United States)Official−%xai/grok-3-fast-latest
United States
131K
$5$5
$25
$1.25
ReasoningToolsJSONCacheVisionWeb

Performance

Measured on real Eden AI traffic over the last 30 days. Endpoints with too little traffic are not shown.

Fastest first token
1.31 s
xAI (United States)
Lowest latency
5.14 s
xAI (United States)
Highest throughput
61.97 tok/s
xAI (United States)
Best availability
100%
xAI (United States)
Endpoint
First token
Latency p50
Latency p95
Throughput
Availability
Cache hits
Tool errors
JSON errors
xAI (United States)
1.31 s
5.14 s
14.2 s
61.97 tok/s
100%
92.19%
0%
0%

Estimate your monthly cost

Enter your expected volume to compare every endpoint at once.

Call Grok 3 Fast Latest with Eden AI

Use the model ID to let Eden AI pick an endpoint, or an endpoint ID from the table above to pin one.

import requests

response = requests.post(
    "https://api.edenai.run/v3/chat/completions",
    headers={"Authorization": "Bearer YOUR_EDENAI_API_KEY"},
    json={
        "model": "",
        "messages": [{"role": "user", "content": "Hello!"}],
    },
)
print(response.json())

Questions about Grok 3 Fast Latest

On Eden AI, prices for this model start at $5 per million input tokens and $25 per million output tokens. Prices differ by endpoint; the providers table lists each one. .

Up to 131K tokens, depending on the endpoint.

1 endpoints from 1 providers, available in: United States. All of them are called with the same Eden AI API key.

Yes. At least one endpoint is hosted in Europe; pin it with its endpoint ID from the providers table to keep requests in the EU.

Over the last 30 days, the fastest first token was 1.31 s (xAI (United States)) and the highest throughput was 61.97 tokens per second (xAI (United States)).