LLMx-ai
xAI: Grok 4 Fast
Grok 4 Fast is xAI's latest multimodal model with SOTA cost-efficiency and a 2M token context window. It comes in two flavors: non-reasoning and reasoning. Read more about the model...
Anyone in the Space can @-mention xAI: Grok 4 Fast with the team's shared context — pooled credits, one chat, one memory.
Starter is free forever — 1 Space, 100 credits/month, 1 MCP. No card.
Specifications
- Provider
- x-ai
- Category
- llm
- Context length
- 2,000,000 tokens
- Max output
- 30,000 tokens
- Modalities
- text, image, file
- License
- proprietary
- Released
- 2025-09-19
Pricing
- Input
- $0.20/Mtok
- Output
- $0.50/Mtok
- Model ID
x-ai/grok-4-fast
Per-token prices show what the model costs upstream. On Switchy your team draws from one shared org credit pool — one plan, one balance for everyone.
Team cost calculator
Estimated monthly spend
$5.10
17.6M tokens / month
5 seats · 80 msgs/day
5 seats · 80 msgs/day
Switchy meters this against your org's shared credit pool — one plan, one balance for everyone.
Providers
| Provider | Context | Input | Output | P50 latency | Throughput | 30d uptime |
|---|---|---|---|---|---|---|
| x-ai | 2000k | $0.20/Mtok | $0.50/Mtok | — | — | — |
Performance
Performance snapshots are collected daily. Check back after the next ingestion run.
Benchmarks
Works well with
Top MCPs
Compatibility data comes from first-party telemetry; once we have enough co-usage signal, top MCPs for this model will appear here.
How Switchy teams use it
Not enough Spaces have used this model yet to share anonymised team stats. We wait for at least 50 distinct Spaces per week before publishing any aggregate.