Viv Fast

VivgridMCP Tool CallReasoning
vivgrid/viv-fastClosed API

Fast coding model

Benchmark Pricing$0.13 / 1M in$0.40 / 1M out$0.05 cache read
Context: 1,000,000 tokens•Max Output: 256,000 tokens•Knowledge: 2026-09•Released: 2026-09-21

TECHNICAL SPECIFICATIONS

Context Window1,000,0001M tokens
Max Output256,000256K tokens
LicenseProprietaryCloud API only
Input Modalities
TextVision
Function / Tool CallingSupported (MCP Ready)
Structured OutputsGuaranteed Schema

MODEL CONTEXT PROTOCOL (MCP) READINESS

✓ Viv Fast natively supports OpenAI / Anthropic format tool calling and is fully compatible with MCP servers and agent loops.

MCP Context Window Recommendations

With a context capacity of 1,000,000 tokens, this model can handle extremely large MCP resource manifests, complete database schemas, and multiple active server tool definitions simultaneously without degradation.

API CALL INVOCATION EXAMPLE

// Example: Calling Viv Fast via OpenAI SDK
import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.VIVGRID_API_KEY,
});

const response = await client.chat.completions.create({
  model: "vivgrid/viv-fast",
  messages: [{ role: "user", content: "Hello! Can you inspect MCP tools?" }],
});

console.log(response.choices[0].message.content);

PRICING BY PROVIDER

1 providers
Vivgridviv-fast
$0.13 / $0.40$0.05 cache

Rates in USD per 1M tokens. Rates synchronized from models.dev public catalog.

Prompt Caching Active

This model supports prompt caching at $0.05 / 1M tokens, saving up to 62% on repetitive MCP tool definitions and system instructions.

MODEL RESOURCES