For under $20/month, you can handle roughly 60K requests per month — about 2K per day. That's enough for most early-stage SaaS products.

Step 5: Cost Optimization Tips

These strategies can cut your AI costs by 40-70%:

1. Use the cheapest model that works

Most SaaS features (search suggestions, content generation, FAQ bots) work perfectly on GPT-4o mini ($0.15/$0.60). Don't use GPT-4o ($2.50/$10) unless you need the extra quality.

2. Cap max_tokens aggressively

Output tokens are 4x more expensive than input tokens. If your feature only needs a short response, set max_tokens: 200 instead of 500. That's a 60% cost reduction on output.

3. Cache repeated queries

If users ask similar questions, cache the responses. A simple Redis cache with a 1-hour TTL can reduce API calls by 30-50% for common queries.

4. Use system prompts wisely

Long system prompts consume input tokens on every request. Keep system prompts under 200 tokens. Use the dynamic-date.js pattern — only send what's needed.

5. Batch where possible

If your feature processes multiple items (e.g., categorizing support tickets), batch them into a single API call instead of making separate calls. OpenAI's Batch API offers 50% off.

Common SaaS Features and Their Costs

All estimates use GPT-4o mini pricing. For cheaper alternatives, see our cost calculator.

What to Do Next

1. Pick your feature: Start with one AI feature (search suggestions or FAQ bot are easiest)
2. Choose a provider: GPT-4o mini for most cases, Gemini Flash for multimodal, DeepSeek for ultra-low cost
3. Integrate: Copy the code examples above, adjust the system prompt for your use case
4. Add cost controls: Set token limits, track usage, add monthly caps per user
5. Monitor: Check your API dashboard weekly for the first month
6. Optimize: Once you have usage data, optimize model choice and caching

— See if you're overpaying for AI APIs

Related Reading

• AI API Cost Optimization: 15 Strategies That Work — comprehensive cost reduction playbook

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• AI API Pricing for Startups — budget planning for early-stage
• Cost Calculator — estimate your exact monthly spend
• Model Switch Calculator — see savings from switching providers