grok-4-fast

openrouter • Performance Analytics

Core Performance Metrics

Total Requests

400

29.6%

Error Rate

0.50%

177.8%

Total Input Tokens

4,885,758

53.6%

Total Output Tokens

1,298,464

37.0%

Access grok-4-fast through LangDB AI Gateway

Recommended

Integrate with x-ai's grok-4-fast and 250+ other models through a unified API. Monitor usage, control costs, and enhance security.

Unified API

Cost Optimization

Enterprise Security

Get Started Now

Free tier available • No credit card required

Instant Setup

99.9% Uptime

10,000+Monthly Requests

Performance Percentiles

Response Time

17.51s

3.8%

TTFT

15.83s

9.0%

TPS (Tokens/Second)

883.2 TPS

27.5%

TPOT (Time/Output Token)

0.010ms

Performance Analytics for grok-4-fast

Usage Statistics (Last 8 Days):

Total Requests: 400 API calls
Average TPS: 883.19 tokens per second
Average Response Time: 17505.40ms
Average Time to First Token: 15833.20ms
Total Cost: $1.90
Average Request Cost: $0.0048

Daily Performance Breakdown:

Date	Requests	TPS	Response Time	TTFT	Cost
11/11/2025	89	841.51	22532.30ms	22532.30ms	$0.53
11/12/2025	42	1219.96	21602.80ms	21066.40ms	$0.33
11/13/2025	58	659.37	14303.10ms	11425.90ms	$0.18
11/14/2025	24	1068.42	18805.20ms	17270.20ms	$0.15
11/15/2025	101	1054.02	9066.80ms	5797.30ms	$0.25
11/16/2025	35	814.21	22542.50ms	20689.50ms	$0.21
11/17/2025	48	702.12	21088.60ms	20097.70ms	$0.24
11/18/2025	3	461.28	30530.40ms	30530.40ms	$0.02

Performance Summary:

Model: grok-4-fast by openrouter

Monitoring Period: 11/11/2025 to 11/18/2025

Average Daily Requests: 50

Peak Daily Requests: 101

Performance Trends

Nov 11 - Nov 18, 2025

Request Volume

Daily API requests

400

Performance (TPS)

Tokens per second

883.19 tokens/s

Response Time

Average response latency (ms)

17505.40 ms

TTFT

Time to First Token (ms)

15833.20 ms

Token Analytics

Token usage distribution and efficiency metrics

Token Distribution

Input vs Output token usage

Input Tokens:4,885,758

Output Tokens:1,298,464

Total Tokens:6,184,222

Token Usage Timeline