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Calculate your DeepSeek API bill before you spend the money
This is a guide with a ready-made formula: plug in your call volume and tokens, and get a real monthly DeepSeek API estimate — separately for the cheap Flash model and the stronger V4 Pro.
A walkthrough of DeepSeek API pricing — paid access that lets your code call DeepSeek's models. Shows how to calculate your monthly bill with a formula covering cache (repeated text billed cheaper the second time) and peak hours.
When it helps
Useful if you're about to wire DeepSeek into your project and want the budget before you pay. If you're not planning to pay for the API at all, skip it.
Pros
- Gives a real cost range before you actually spend anything
- Compares cheap Flash against stronger V4 Pro on your own numbers
- Formula and prices come straight from DeepSeek's official pricing page
Cons
- You still have to measure your real cache-hit rate yourself
- DeepSeek's prices can change, so you'll need to recheck the formula
- Flash's low price doesn't mean it can handle complex agentic work
How to set it up — step by step
- 1Open an AI agent (Claude Code or Codex) in your project folder
- 2Send the agent the text from the block below
- 3Tell it your monthly call volume and input/output tokens per call
- 4Give your estimated cache-hit share if you know it, or start at zero
- 5Check the result: it should give separate totals for Flash and V4 Pro
- 6Pick a model that fits your budget, checking current prices on DeepSeek's page
Text for your agent
Copy this and send it to your agent — Claude Code, Codex, any of them:
Open the DeepSeek API pricing guide from here: https://github.com/benderandrew069/deepseek-api-pricing-2026 — take its cost formula and calculate my monthly DeepSeek bill (ask me for my monthly call volume, input and output tokens per call, and my rough cache-hit share), and show it separately for Flash and for V4 Pro.
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