Grok Composer 2.5 Fast is xAI's high-speed model for agentic coding, built for multi-step code edits, tool calling, and terminal operations at low latency and low cost. A fit for coding agents, IDE assistants, and high-throughput automated development. Access it on Velokey at a lower price — one API key, pay as you go, below official pricing.
활용 사례
Coding agents · IDE and code assistants
입력
텍스트
출력
텍스트
청구 방식
토큰당 과금
대화 시작하기
아래에 메시지를 입력해 시작하세요
가입하면 $0.5 무료 크레딧 — 이미지 약 20장을 무료로 생성
요금 상세
사용량 기반의 투명한 가격 정책으로 숨은 비용이 없습니다.
요금 상세
사용량 기반 요금 내역
| 사양 | 가격 | 공식 가격 | 절감 |
|---|---|---|---|
| Input/1M tokens | 2.4 크레딧≈$2.4 | 3 크레딧 | -20% |
| Output/1M tokens | 12 크레딧≈$12 | 15 크레딧 | -20% |
| Cache Read/1M tokens | 0.4 크레딧≈$0.4 | 0.5 크레딧 | -20% |
청구 규칙
- 출력 가격은 모델, 해상도, 품질, 길이 또는 토큰 사용량에 따라 달라집니다.
- 업로드한 참조 파일은 지원되는 경우 별도로 과금될 수 있습니다.
- 웹 검색, 이미지 검색 등 부가 기능은 요청당 과금될 수 있습니다.
- 토큰 기반 모델은 입력 및 출력 토큰 기준으로 과금됩니다.
- 기본 경로를 사용할 수 없는 경우 Velokey가 가능한 범위에서 안정적인 대체 경로로 자동 전환할 수 있습니다.
- 사용량 기반 결제이며 크레딧이 투명하게 차감됩니다.
* 최종 비용은 생성된 결과에 따라 달라집니다.
관련 모델
같은 종류의 다른 모델을 살펴보세요.
xAI20% 할인Grok 4.20
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- xAI20% 할인
Grok 4.3
Grok 4.3 is xAI's always-on reasoning model for complex, accuracy-critical tasks, with a 1M-token context, vision, tool use, and web search at an aggressively low price.
OpenAI20% 할인GPT 5.4 Mini
OpenAI's fast, cost-efficient GPT-5.4 Mini for high-volume production, with vision, long context, and strong tool use at low latency.
Alibaba20% 할인Qwen3.6 Plus
Alibaba's Qwen3.6 Plus, a balanced flagship-tier model with strong reasoning, long context, multimodal input, and agentic tool use.
Affordable Grok Composer 2.5 Fast API
Access xAI's high-speed agentic coding model, Grok Composer 2.5 Fast, at a lower price on Velokey — OpenAI-compatible, one API key, pay as you go, below official pricing.
Meet Grok Composer 2.5 Fast and its API integration
Grok Composer 2.5 Fast is xAI's model optimized for agentic coding, strong at multi-file code edits, tool calling, and terminal operations, keeping latency and cost low. On Velokey you can access the Grok Composer 2.5 Fast API at a lower price — one API key, pay as you go, below official pricing, no forced subscription — with credits, usage, and multi-model routing all managed in one console.
Fast agentic coding
Optimized for multi-step, multi-file code edits, keeping long-running coding agents on track. Compared with general-purpose models, it's faster and cheaper at implementing requirements, editing across files, and iterating — the headline capability of this generation.
View docs →
Tool calling and terminal ops
Native function calling and tool use — run terminal commands, call external APIs, and orchestrate retrieval, build, and test steps into multi-step development flows to cut round trips.
View docs →
Low latency, low cost, high throughput
Optimized for high-frequency calls with low latency and low unit price — a fit for scaling coding agents and automation without blowing the budget, the value pick for high-frequency development.
View docs →
OpenAI-compatible, one key many models
A unified interface compatible with the OpenAI calling convention; one API key reaches Grok Composer 2.5 Fast and other vendors' models, turning task routing and cross-model fallback into configuration rather than rewrites.
View docs →
How to deploy the Grok Composer 2.5 Fast API on Velokey
A few steps to start calling.
Register and get an API key
Create an API key in the Velokey console; one key authenticates every request sent to Grok Composer 2.5 Fast.
Set the model
Set model to grok-composer-2.5-fast and submit messages and tools (function calling) as needed.
Call and integrate
Send requests through Velokey's unified /v1/chat/completions endpoint, compatible with the OpenAI calling convention, with usage and credits managed in one console.
Grok Composer 2.5 Fast real-world use cases
From coding agents to high-throughput dev pipelines, a fit for many high-frequency scenarios.
Coding agents
Long-horizon automated coding: implement requirements, edit across files, run tests, and iterate.
IDE and code assistants
Low-latency completion, refactoring, and explanation for editors — fast at controllable cost.
Repo-scale tasks
Cross-repo bulk edits, migrations, and checks, scaled with tool calling and high throughput.
Terminal and automation
Run terminal commands and call tools to wire build, test, and deploy steps into agents.
High-throughput batch
Bulk code generation and checks — a low unit price makes running at scale worthwhile.
Code review and analysis
Fast review, explanation, and issue localization over diffs, PRs, and codebases.
Why choose Velokey for Grok Composer 2.5 Fast
below official pricing
Call Grok Composer 2.5 Fast at a lower price on Velokey — pay as you go, no forced subscription, lower upfront cost.
One key, many models
A single API key reaches it and other vendors' models, turning task routing and cross-model fallback into configuration rather than rewrites.
Unified OpenAI-compatible access
Compatible with the OpenAI calling convention; switching models is a single model-field change, keeping integration cost minimal.
Stability and high availability
Automatic failover and stable fallback routes maintain availability when the primary route is down, keeping production steady.
API 레퍼런스
완전한 API 호출 예시와 파라미터 설명
Endpoint
https://api.velokey.ai/v1/chat/completionsAuthentication
Bearer YOUR_API_KEYRequest Example
curl https://api.velokey.ai/v1/chat/completions \
-X POST \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "grok-composer-2.5-fast",
"messages": [{"role": "user", "content": "Hello!"}],
"temperature": 0.7
}'Response Example
{
"id": "req_abc123",
"model": "grok-composer-2.5-fast",
"created": 1234567890,
"data": { ... }
}Grok Composer 2.5 Fast API FAQ
What is the Grok Composer 2.5 Fast API?
Grok Composer 2.5 Fast is xAI's high-speed model optimized for agentic coding, strong at multi-step code edits, tool calling, and terminal operations. On Velokey you call it through unified OpenAI-compatible access, with model set to grok-composer-2.5-fast.
What is Grok Composer 2.5 Fast good for?
It fits coding agents, IDE and code assistants, and bulk code generation and migration. It's optimized for multi-file edits, tool calling, and high throughput — fast and low-cost.
Does Grok Composer 2.5 Fast support function calling / tools?
Yes. It supports function calling (tools) — run terminal commands and call external APIs to wire retrieval, build, and test steps into multi-step agentic coding flows.
How does it compare with a stronger reasoning model?
Composer 2.5 Fast is built for speed and cost and fits most coding and automation tasks; for the hardest long-horizon reasoning, switch to a stronger model on Velokey per task — one key covers both.
How is it billed on Velokey?
The pricing section on this page shows current Velokey prices, billed by input and output tokens (about $2.4 input / $12 output per 1M tokens, official $3/$15). Credits are managed from one Velokey account.