# WIA-AI-026 Generative AI - PHASE 1 Specification

## Overview

Phase 1 establishes the foundational architecture and core generative AI capabilities for the WIA-AI-026 standard. This phase focuses on building robust, scalable infrastructure for text, image, and audio generation with emphasis on safety, reliability, and interoperability.

**Timeline**: Q1-Q2 2025 (6 months)
**Status**: In Development
**Priority**: Critical

## Core Objectives

1. **Unified API Framework**: Establish consistent API patterns across all generation modalities
2. **Safety First**: Implement comprehensive content filtering and safety mechanisms
3. **Interoperability**: Ensure compatibility with existing WIA standards (WIA-INTENT, WIA-OMNI-API)
4. **Developer Experience**: Provide intuitive SDKs and comprehensive documentation

## Technical Architecture

### 1. Generative AI Gateway

**Purpose**: Central routing and orchestration layer for all generative requests

**Components**:
```typescript
interface GenerativeGateway {
  // Request routing
  route(request: GenerationRequest): Promise<GenerationResponse>;

  // Load balancing
  balance(modelType: ModelType): ModelEndpoint;

  // Rate limiting
  rateLimit(apiKey: string): boolean;

  // Monitoring
  track(requestId: string, metrics: RequestMetrics): void;
}
```

**Features**:
- Intelligent model selection based on prompt analysis
- Automatic failover to backup models
- Request queuing and batching
- Real-time monitoring and alerting

### 2. Text Generation Module

**Models Supported**:
- GPT-family models (GPT-3.5, GPT-4)
- Claude (Anthropic)
- LLaMA 2/3
- Mistral
- Custom fine-tuned models

**API Specification**:
```typescript
interface TextGenerationRequest {
  prompt: string;
  model?: string;
  maxTokens?: number;
  temperature?: number;
  topP?: number;
  topK?: number;
  stopSequences?: string[];
  presencePenalty?: number;
  frequencyPenalty?: number;
  systemPrompt?: string;
  conversationHistory?: Message[];
}

interface TextGenerationResponse {
  id: string;
  model: string;
  text: string;
  finishReason: 'stop' | 'length' | 'content_filter';
  usage: {
    promptTokens: number;
    completionTokens: number;
    totalTokens: number;
  };
  metadata: {
    latency: number;
    timestamp: number;
  };
}
```

**Safety Features**:
- Input sanitization and validation
- Content filtering (violence, NSFW, hate speech)
- PII detection and redaction
- Jailbreak attempt detection
- Output moderation

### 3. Image Generation Module

**Models Supported**:
- Stable Diffusion XL
- DALL-E 3
- Midjourney (via API)
- Custom LoRA models

**API Specification**:
```typescript
interface ImageGenerationRequest {
  prompt: string;
  negativePrompt?: string;
  model?: string;
  width?: number;
  height?: number;
  numImages?: number;
  steps?: number;
  guidanceScale?: number;
  seed?: number;
  scheduler?: string;
  style?: string;
  lora?: LoRAConfig;
}

interface ImageGenerationResponse {
  id: string;
  images: ImageOutput[];
  metadata: {
    model: string;
    seed: number;
    generationTime: number;
  };
}

interface ImageOutput {
  url: string;
  base64?: string;
  width: number;
  height: number;
  format: 'png' | 'jpg' | 'webp';
}
```

**Safety Features**:
- NSFW detection
- Deepfake watermarking
- Copyright violation detection
- Content authenticity markers (C2PA)

### 4. Audio Generation Module

**Models Supported**:
- Text-to-Speech (TTS): ElevenLabs, Bark, Tortoise
- Music Generation: MusicLM, AudioCraft
- Voice Cloning: Coqui, XTTS

**API Specification**:
```typescript
interface AudioGenerationRequest {
  text?: string;
  prompt?: string;
  type: 'speech' | 'music' | 'sound_effect';
  voice?: string;
  language?: string;
  duration?: number;
  temperature?: number;
  format?: 'mp3' | 'wav' | 'ogg';
}

interface AudioGenerationResponse {
  id: string;
  audioUrl: string;
  duration: number;
  format: string;
  metadata: {
    model: string;
    sampleRate: number;
    bitrate: number;
  };
}
```

## Security and Privacy

### 1. Authentication and Authorization

```typescript
interface AuthConfig {
  apiKeyRequired: boolean;
  oauth2Support: boolean;
  jwtValidation: boolean;
  roleBasedAccess: RBAC;
}
```

**Implementation**:
- API key management system
- OAuth 2.0 / OpenID Connect support
- Role-based access control (RBAC)
- Audit logging for all requests

### 2. Data Privacy

**Principles**:
- No training on user prompts without explicit consent
- Data retention policies (30 days default, configurable)
- GDPR compliance
- Right to deletion
- Data anonymization for analytics

**Implementation**:
```typescript
interface PrivacyConfig {
  dataRetentionDays: number;
  allowTraining: boolean;
  anonymizeAnalytics: boolean;
  gdprCompliant: boolean;
}
```

### 3. Content Safety

**Multi-Layer Defense**:
1. **Input Filtering**: Block unsafe prompts before processing
2. **Generation Monitoring**: Track model outputs in real-time
3. **Output Filtering**: Screen all generated content
4. **Human Review**: Flagged content for manual review

**Safety Classifiers**:
```typescript
interface SafetyClassifier {
  violence: (content: string) => SafetyScore;
  nsfw: (content: string) => SafetyScore;
  hateSpeech: (content: string) => SafetyScore;
  childSafety: (content: string) => SafetyScore;
  pii: (content: string) => PIIDetection;
}

interface SafetyScore {
  score: number; // 0-1
  category: string;
  threshold: number;
  action: 'allow' | 'flag' | 'block';
}
```

## Performance Requirements

### 1. Latency Targets

| Operation | P50 | P95 | P99 |
|-----------|-----|-----|-----|
| Text Generation (streaming) | <100ms TTFT | <200ms TTFT | <300ms TTFT |
| Text Generation (complete) | <2s | <5s | <10s |
| Image Generation (512x512) | <5s | <10s | <15s |
| Image Generation (1024x1024) | <15s | <30s | <45s |
| Audio Generation (TTS, 1min) | <3s | <6s | <10s |

**TTFT**: Time To First Token

### 2. Throughput Targets

- Text: 1000+ requests/second
- Image: 100+ requests/second
- Audio: 50+ requests/second

### 3. Availability

- 99.9% uptime (3 nines)
- <1 hour planned maintenance per month
- Automatic failover within 30 seconds

## Monitoring and Observability

### 1. Metrics Collection

```typescript
interface Metrics {
  // Performance
  latency: LatencyMetrics;
  throughput: ThroughputMetrics;
  errorRate: ErrorMetrics;

  // Resource utilization
  cpu: number;
  memory: number;
  gpu: GPUMetrics;

  // Business metrics
  requestsPerModel: Map<string, number>;
  costPerRequest: number;
  userSatisfaction: number;
}
```

### 2. Logging

- Structured JSON logs
- Request/response tracing
- Error stack traces
- Audit logs for compliance

### 3. Alerting

- Latency spike detection
- Error rate threshold alerts
- Capacity planning alerts
- Security incident notifications

## Cost Management

### 1. Pricing Tiers

**Developer Tier** (Free):
- 100 text generations/day
- 10 image generations/day
- 10 audio generations/day

**Professional Tier** ($49/month):
- 10,000 text generations/month
- 1,000 image generations/month
- 500 audio generations/month

**Enterprise Tier** (Custom):
- Unlimited generations
- Dedicated infrastructure
- SLA guarantees
- Priority support

### 2. Cost Optimization

- Model selection based on cost/quality trade-off
- Caching frequently requested generations
- Batch processing for efficiency
- Auto-scaling based on demand

## Deliverables

### Q1 2025

- [x] Architecture design document
- [x] API specification v1.0
- [ ] Text generation module (beta)
- [ ] Safety classifier implementation
- [ ] TypeScript SDK v0.1
- [ ] Developer documentation

### Q2 2025

- [ ] Image generation module (beta)
- [ ] Audio generation module (alpha)
- [ ] Production deployment
- [ ] Monitoring dashboard
- [ ] Python SDK v0.1
- [ ] Example applications

## Success Criteria

1. **API Adoption**: 100+ developers using the API
2. **Generation Quality**: >4.0/5.0 average user rating
3. **Safety**: <0.1% unsafe content generation rate
4. **Performance**: Meet all latency targets at P95
5. **Reliability**: 99.9% uptime achieved
6. **Documentation**: 100% API coverage

## Dependencies

- **WIA-INTENT**: For semantic intent understanding
- **WIA-OMNI-API**: For unified API gateway
- **Cloud Infrastructure**: AWS/GCP/Azure
- **Model Providers**: OpenAI, Anthropic, Stability AI
- **Safety Tools**: OpenAI Moderation API, custom classifiers

## Risks and Mitigation

| Risk | Impact | Probability | Mitigation |
|------|--------|-------------|------------|
| Model API downtime | High | Medium | Multiple provider failover |
| Safety bypass | Critical | Low | Multi-layer filtering + red teaming |
| Cost overrun | Medium | Medium | Budget alerts + auto-scaling limits |
| Performance degradation | High | Medium | Caching + load balancing |
| Regulatory compliance | Critical | Low | Legal review + GDPR compliance |

## Next Steps

1. Complete Phase 1 implementation
2. Begin Phase 2 planning (multimodal generation)
3. Conduct security audit
4. Launch beta program with early adopters
5. Gather feedback and iterate

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**弘益人間 (Benefit All Humanity)** - Phase 1 establishes the foundation for generative AI that serves all people safely, reliably, and ethically.

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© 2025 SmileStory Inc. / WIA | WIA-AI-026 Generative AI Standard