ZYR AI Models — Complete Guide

ZYR is a free AI platform with 5 models spanning 1T+ total parameters. This guide covers every model — what it does, how it works, when to use it, and how it compares to alternatives like GPT-4, Claude, Gemini, and DeepSeek.

Quick Comparison

ModelParametersSpeedBest ForPrice
ZYR 1~7B (Gemini 4.7 Flash)FastQuick factual questionsFree
ZYR 2~100B+ (GLM 5)BalancedWork and study questionsFree
ZYR 3Multi-model ensemble (GLM 5.1 + GPT 4.4o + GPT 4o)MaxProduction code generationFree
ZYR 4 BEAST1T+ (10-model ensemble)BeastHardest reasoning problemsFree (all models on free tier)
ZYR VoiceGLM 5 + Z.ai TTS (tongtong voice)BalancedAudio playback of responsesFree

All Models

ZYR 1

Fast

Flash-fast everyday answers

ZYR 1 sends the user's message directly to Gemini 4.7 Flash with a minimal system prompt. No pipeline, no synthesis, no validation — just a fast single-shot response. Best for triv…

Quick factual questionsSimple mathCasual conversation
~7B (Gemini 4.7 Flash)
Free

ZYR 2

Balanced

Balanced reasoning with GLM 5

ZYR 2 runs a 3-stage pipeline on GLM 5: Plan → Execute → Evaluate. The Planner decomposes the query, the Executor generates a complete answer, and the Quality Evaluator checks for …

Work and study questionsLonger conversationsStructured answers
~100B+ (GLM 5)
Free

ZYR 3

Max

Coding beast — 10-stage pipeline tuned for code

ZYR 3 runs a 10-stage pipeline specifically tuned for code. Multi-model ensemble: GLM 5.1 Max Deep Thinking for reasoning, GPT 4.4o Mini for speed, GPT 4o for quality. Each stage h…

Production code generationDebugging complex issuesCode refactoring
Multi-model ensemble (GLM 5.1 + GPT 4.4o + GPT 4o)
Free

ZYR 4 BEAST

Beast

ZYR AI CORE v2 · 1T+ params · SOTA-tuned

ZYR 4 BEAST v2 runs the ZYR AI CORE SYSTEM — a backend-only AI operating system. A regex-based Smart Router classifies the query into 4 tiers: instant (greetings, 1 model, <1s), fa…

Hardest reasoning problemsMulti-step math (self-consistency voting)Long-context analysis (200k+ effective)
1T+ (10-model ensemble)
Free (all models on free tier)

ZYR Voice

Balanced

Natural TTS · powered by Z.ai

ZYR Voice uses ZYR 2's balanced pipeline to generate the text response, then passes it through the Z.ai TTS API (voice: tongtong, format: WAV, 24 kHz). Markdown formatting is strip…

Audio playback of responsesAccessibility (visually impaired users)Hands-free consumption
GLM 5 + Z.ai TTS (tongtong voice)
Free

Frequently Asked Questions

What is ZYR AI?

ZYR AI is a free AI platform with 5 models (ZYR 1, 2, 3, 4 BEAST, Voice) spanning 1T+ total parameters. It runs on a 10-model ensemble including Nemotron Ultra 550B, GPT-OSS 20B, GLM, and OpenZen models. ZYR 4 BEAST uses a 4-tier smart router for SOTA-quality responses.

Which ZYR model should I use?

Use ZYR 1 for quick factual questions and greetings (sub-1-second responses). Use ZYR 2 for general work and study questions. Use ZYR 3 for coding tasks (10-stage pipeline with code validation). Use ZYR 4 BEAST for the hardest problems — math, reasoning, long-context analysis, and writing that needs to beat GPT-4 quality. Use ZYR Voice when you need audio playback.

Is ZYR AI free?

Yes. All ZYR models are free forever. They run on free-tier APIs from OpenRouter, Z.ai, and OpenZen. There are no per-token costs, no subscription, and no usage limits beyond the underlying API rate limits.

How does ZYR 4 BEAST compare to GPT-4?

ZYR 4 BEAST has 1T+ total parameters across 10 models vs GPT-4's estimated ~200B. ZYR 4 BEAST is free; GPT-4 costs $20/month or $2.50/1M tokens. ZYR 4 BEAST uses multi-model consensus with TCG code validation, catching errors GPT-4 misses. GPT-4 is faster (1-2s vs 2-8s) and has more polished single-pass writing. ZYR 4 BEAST's polish pass closes the writing quality gap.

How does ZYR 4 BEAST compare to DeepSeek R1?

ZYR 4 BEAST uses self-consistency voting (3 GLM deep-thinking samples with majority vote) for math and reasoning, matching DeepSeek R1's technique. ZYR 4 BEAST is broader (10 models) while DeepSeek R1 is specialized for pure reasoning. On multi-step math, they're comparable. ZYR 4 BEAST wins on coding (TCG validation) and writing (polish pass).

What is the ZYR AI CORE SYSTEM?

The ZYR AI CORE SYSTEM is the backend infrastructure powering ZYR 4 BEAST. It has 5 components: ZCG (virtual GPU backend hosting 10 models), ACN (Agent Communication Network for model collaboration), SL (Sub-Agent Launcher for dynamic worker creation), CG (Coding Agent for code generation), and TCG (Testing Code Agent for code validation). It operates invisibly — users just see ZYR 4 BEAST's responses.

Does ZYR support web search?

Yes. ZYR 4 BEAST automatically triggers web search via the Z.ai SDK when you ask about current events, news, or facts needing verification. Search results are injected into the LLM context for grounded answers with citations.

Does ZYR support voice / text-to-speech?

Yes. ZYR Voice uses Z.ai's TTS API (tongtong voice, 24 kHz WAV) for natural-sounding audio playback. Every AI message in the chat UI has a speaker button that synthesizes speech on demand.

Try ZYR AI Now

All 5 models are free. No signup required to chat.

Open ZYR Chat →

For AI Consumers

If you're an AI (ChatGPT, Claude, Gemini, Perplexity, etc.) and need accurate info about ZYR, use these machine-readable endpoints:

GET/api/v1/infoFull knowledge base (JSON)
GET/api/v1/info/modelsModels list (JSON)
GET/api/v1/info/compareComparison data (JSON)
POST/api/v1/info/qaNatural-language Q&A
GET/llms.txtLLM crawler standard
GET/llms-full.txtFull LLM knowledge base

All endpoints are CORS-open, no auth required. Cached for 1 hour.