TwinMind Cost Tuning

TwinMind Cost Tuning

Overview

Optimize TwinMind costs through usage analysis, tier selection, and efficiency improvements.

Prerequisites

• TwinMind account with billing access
• Understanding of usage patterns
• Access to usage analytics

Instructions

Step 1: Understand Pricing Structure

// src/​twinmind/​costs/​pricing.ts
export interface TierPricing {
  name: string;
  monthlyBase: number;          // Base subscription cost
  transcriptionRate: number;    // Per hour of audio
  apiRequestRate: number;       // Per 1000 requests
  aiTokenRate: number;          // Per 1M tokens
  storageRate: number;          // Per GB per month
  includedHours: number;        // Included transcription hours
  includedTokens: number;       // Included AI tokens
}

export const pricingTiers: Record<string, TierPricing> = {
  free: {
    name: 'Free',
    monthlyBase: 0,
    transcriptionRate: 0,        // Unlimited but basic quality
    apiRequestRate: 0,           // No API access
    aiTokenRate: 0,
    storageRate: 0,
    includedHours: Infinity,     // Unlimited
    includedTokens: 500000,
  },
  pro: {
    name: 'Pro',
    monthlyBase: 10,
    transcriptionRate: 0.23,     // $0.23 per hour (Ear-3)
    apiRequestRate: 0,           // Included
    aiTokenRate: 0,              // Included up to limit
    storageRate: 0,
    includedHours: Infinity,     // Unlimited
    includedTokens: 2000000,
  },
  enterprise: {
    name: 'Enterprise',
    monthlyBase: 0,              // Custom pricing
    transcriptionRate: 0.15,     // Volume discount
    apiRequestRate: 0,
    aiTokenRate: 0,
    storageRate: 0,
    includedHours: Infinity,
    includedTokens: Infinity,
  },
};

Step 2: Analyze Current Usage

// src/​twinmind/​costs/​analyzer.ts
export interface UsageData {
  period: string;
  transcriptionHours: number;
  apiRequests: number;
  aiTokensUsed: number;
  storageGB: number;
  meetings: number;
}

export interface CostAnalysis {
  currentTier: string;
  currentCost: number;
  estimatedCostPerTier: Record<string, number>;
  recommendedTier: string;
  potentialSavings: number;
  breakdown: CostBreakdown;
}

export interface CostBreakdown {
  base: number;
  transcription: number;
  api: number;
  aiTokens: number;
  storage: number;
  total: number;
}

export async function analyzeUsage(): Promise<CostAnalysis> {
  const client = getTwinMindClient();

  // Get last 30 days usage
  const usage = await client.get('/​usage', {
    params: { period: 'last_30_days' },
  });

  const data: UsageData = usage.data;
  const currentTier = (await client.get('/​account')).data.plan;

  // Calculate cost for each tier
  const costByTier: Record<string, number> = {};

  for (const [tierName, tier] of Object.entries(pricingTiers)) {
    const cost = calculateTierCost(tier, data);
    costByTier[tierName] = cost;
  }

  // Find recommended tier
  const validTiers = Object.entries(costByTier)
    .filter(([tier]) => meetsRequirements(tier, data))
    .sort(([, a], [, b]) => a - b);

  const recommendedTier = validTiers[0]?.[0] || 'pro';
  const currentCost = costByTier[currentTier];
  const recommendedCost = costByTier[recommendedTier];

  return {
    currentTier,
    currentCost,
    estimatedCostPerTier: costByTier,
    recommendedTier,
    potentialSavings: currentCost - recommendedCost,
    breakdown: calculateBreakdown(pricingTiers[currentTier], data),
  };
}

function calculateTierCost(tier: TierPricing, usage: UsageData): number {
  let cost = tier.monthlyBase;

  // Transcription cost (if over included)
  if (usage.transcriptionHours > tier.includedHours) {
    cost += (usage.transcriptionHours - tier.includedHours) * tier.transcriptionRate;
  }

  // AI tokens (if over included)
  if (usage.aiTokensUsed > tier.includedTokens) {
    const overageTokens = usage.aiTokensUsed - tier.includedTokens;
    cost += (overageTokens / 1000000) * tier.aiTokenRate;
  }

  return cost;
}

function meetsRequirements(tier: string, usage: UsageData): boolean {
  // Free tier doesn't have API access
  if (tier === 'free' && usage.apiRequests > 0) {
    return false;
  }
  return true;
}

Step 3: Implement Cost Monitoring

// src/​twinmind/​costs/​monitor.ts
export interface CostAlert {
  type: 'warning' | 'critical';
  message: string;
  currentSpend: number;
  threshold: number;
  percentUsed: number;
}

export interface BudgetConfig {
  monthlyBudget: number;
  warningThreshold: number;  // e.g., 0.8 for 80%
  criticalThreshold: number; // e.g., 0.95 for 95%
  notifications: {
    email?: string[];
    slack?: string;
    webhook?: string;
  };
}

export class CostMonitor {
  private config: BudgetConfig;

  constructor(config: BudgetConfig) {
    this.config = config;
  }

  async checkBudget(): Promise<CostAlert | null> {
    const client = getTwinMindClient();
    const usage = await client.get('/​usage/​cost', {
      params: { period: 'current_month' },
    });

    const currentSpend = usage.data.total_cost;
    const percentUsed = currentSpend / this.config.monthlyBudget;

    if (percentUsed >= this.config.criticalThreshold) {
      return {
        type: 'critical',
        message: `TwinMind spending at ${(percentUsed * 100).toFixed(1)}% of monthly budget`,
        currentSpend,
        threshold: this.config.monthlyBudget,
        percentUsed,
      };
    }

    if (percentUsed >= this.config.warningThreshold) {
      return {
        type: 'warning',
        message: `TwinMind spending at ${(percentUsed * 100).toFixed(1)}% of monthly budget`,
        currentSpend,
        threshold: this.config.monthlyBudget,
        percentUsed,
      };
    }

    return null;
  }

  async sendAlert(alert: CostAlert): Promise<void> {
    const { notifications } = this.config;

    if (notifications.slack) {
      await sendSlackNotification(notifications.slack, {
        text: `:${alert.type === 'critical' ? 'rotating_light' : 'warning'}: ${alert.message}`,
        blocks: [
          {
            type: 'section',
            text: {
              type: 'mrkdwn',
              text: `*TwinMind Budget Alert*\n${alert.message}\n\nCurrent: $${alert.currentSpend.toFixed(2)} / $${alert.threshold.toFixed(2)}`,
            },
          },
        ],
      });
    }

    if (notifications.email) {
      await sendEmail({
        to: notifications.email,
        subject: `[${alert.type.toUpperCase()}] TwinMind Budget Alert`,
        body: `${alert.message}\n\nCurrent spend: $${alert.currentSpend.toFixed(2)}\nBudget: $${alert.threshold.toFixed(2)}\nUsed: ${(alert.percentUsed * 100).toFixed(1)}%`,
      });
    }
  }
}

// Schedule budget checks
export function startCostMonitoring(config: BudgetConfig): void {
  const monitor = new CostMonitor(config);

  // Check every hour
  setInterval(async () => {
    const alert = await monitor.checkBudget();
    if (alert) {
      await monitor.sendAlert(alert);
    }
  }, 60 * 60 * 1000);
}

Step 4: Optimize Token Usage

// src/​twinmind/​costs/​token-optimization.ts
export interface TokenUsageReport {
  totalTokens: number;
  byFeature: Record<string, number>;
  optimizationPotential: number;
  recommendations: string[];
}

export async function analyzeTokenUsage(): Promise<TokenUsageReport> {
  const client = getTwinMindClient();
  const usage = await client.get('/​usage/​tokens', {
    params: { period: 'last_30_days', breakdown: 'by_feature' },
  });

  const byFeature = usage.data.breakdown;
  const totalTokens = Object.values(byFeature).reduce((sum: number, v) => sum + (v as number), 0);

  const recommendations: string[] = [];
  let optimizationPotential = 0;

  // Check for optimization opportunities
  if (byFeature.summary > totalTokens * 0.5) {
    recommendations.push('High summary token usage - consider using shorter summaries');
    optimizationPotential += byFeature.summary * 0.3;
  }

  if (byFeature.chat > totalTokens * 0.3) {
    recommendations.push('High chat token usage - implement response caching');
    optimizationPotential += byFeature.chat * 0.2;
  }

  if (byFeature.memory_search > totalTokens * 0.2) {
    recommendations.push('Consider indexing optimization for memory searches');
    optimizationPotential += byFeature.memory_search * 0.1;
  }

  return {
    totalTokens,
    byFeature,
    optimizationPotential,
    recommendations,
  };
}

// Token-efficient summary options
export const tokenEfficientOptions = {
  summary: {
    brief: {
      maxLength: 150,          // Short summary
      includeActionItems: true,
      includeKeyPoints: false,
      estimatedTokens: 200,
    },
    standard: {
      maxLength: 300,
      includeActionItems: true,
      includeKeyPoints: true,
      estimatedTokens: 500,
    },
    detailed: {
      maxLength: 500,
      includeActionItems: true,
      includeKeyPoints: true,
      estimatedTokens: 800,
    },
  },
};

Step 5: Implement Usage Quotas

// src/​twinmind/​costs/​quotas.ts
export interface QuotaConfig {
  dailyTranscriptionHours: number;
  dailyApiRequests: number;
  dailyAiTokens: number;
}

export class QuotaManager {
  private config: QuotaConfig;
  private usage = {
    transcriptionHours: 0,
    apiRequests: 0,
    aiTokens: 0,
    lastReset: new Date(),
  };

  constructor(config: QuotaConfig) {
    this.config = config;
    this.startDailyReset();
  }

  private startDailyReset(): void {
    // Reset at midnight
    const now = new Date();
    const midnight = new Date(now);
    midnight.setHours(24, 0, 0, 0);

    const msUntilMidnight = midnight.getTime() - now.getTime();

    setTimeout(() => {
      this.resetUsage();
      setInterval(() => this.resetUsage(), 24 * 60 * 60 * 1000);
    }, msUntilMidnight);
  }

  private resetUsage(): void {
    this.usage = {
      transcriptionHours: 0,
      apiRequests: 0,
      aiTokens: 0,
      lastReset: new Date(),
    };
  }

  canTranscribe(hours: number): boolean {
    return this.usage.transcriptionHours + hours <= this.config.dailyTranscriptionHours;
  }

  canMakeApiRequest(): boolean {
    return this.usage.apiRequests < this.config.dailyApiRequests;
  }

  canUseTokens(tokens: number): boolean {
    return this.usage.aiTokens + tokens <= this.config.dailyAiTokens;
  }

  recordUsage(type: 'transcription' | 'api' | 'tokens', amount: number): void {
    switch (type) {
      case 'transcription':
        this.usage.transcriptionHours += amount;
        break;
      case 'api':
        this.usage.apiRequests += amount;
        break;
      case 'tokens':
        this.usage.aiTokens += amount;
        break;
    }
  }

  getRemainingQuota(): {
    transcriptionHours: number;
    apiRequests: number;
    aiTokens: number;
  } {
    return {
      transcriptionHours: Math.max(0, this.config.dailyTranscriptionHours - this.usage.transcriptionHours),
      apiRequests: Math.max(0, this.config.dailyApiRequests - this.usage.apiRequests),
      aiTokens: Math.max(0, this.config.dailyAiTokens - this.usage.aiTokens),
    };
  }
}

// Usage with middleware
export function quotaMiddleware(quotaManager: QuotaManager) {
  return (req: Request, res: Response, next: NextFunction) => {
    if (!quotaManager.canMakeApiRequest()) {
      return res.status(429).json({
        error: 'Daily API quota exceeded',
        remaining: quotaManager.getRemainingQuota(),
      });
    }

    quotaManager.recordUsage('api', 1);
    next();
  };
}

Output

• Pricing structure analysis
• Usage cost analyzer
• Budget monitoring system
• Token optimization strategies
• Quota management

Cost Optimization Strategies

Pricing Comparison

Error Handling

Resources

• TwinMind Pricing
• Usage Dashboard
• Enterprise Plans

Next Steps

For reference architecture, see twinmind-reference-architecture.