Claude 4 Migration Cost Calculator
Claude 4 was retired on June 15, 2026. Enter your usage below to see exactly how much you'll save with each alternative — in 30 seconds.
📊 Calculate Your Migration Savings
Select your current model and enter your monthly usage to see exact costs across all alternatives.
| Model | Provider | Your Monthly Cost | Savings |
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Frequently Asked Questions
How much does it cost to migrate from Claude 4?
Migration itself is free — you just change your model ID and API key. The cost savings depend on which alternative you choose: Claude Opus 4.8 saves 67%, GPT-5 saves 92%, DeepSeek V4 Pro saves 97%, and DeepSeek V4 Flash saves 99% compared to Claude 4 Opus pricing.
What is the cheapest Claude 4 alternative?
DeepSeek V4 Flash at $0.14/$0.28 per million tokens is 99% cheaper than Claude 4 Opus ($15/$75). For similar quality, DeepSeek V4 Pro at $0.44/$0.87 is 97% cheaper. The cheapest Anthropic option is Claude Opus 4.8 at $5/$25 (67% cheaper).
Is Claude 4 migration worth it?
Yes. Most developers save 67-97% by migrating from Claude 4. A typical $500/month Claude 4 Opus user would pay $165/month with Opus 4.8, $40/month with GPT-5, or $14.50/month with DeepSeek V4 Pro. The migration takes 5 minutes and requires changing 2 lines of code.
Do I need a new API key to migrate from Claude 4?
If staying with Anthropic (switching to Opus 4.8 or Sonnet 4.6), your existing API key works. Just change the model name. If switching to OpenAI, Google, or DeepSeek, you'll need a new API key from that provider.
How long does Claude 4 migration take?
Most developers complete the migration in 5 minutes. You need to: 1) Find your Claude 4 model ID in your code, 2) Replace it with the new model ID, and 3) Redeploy. If switching providers, you'll also need to update your API key and base URL.
Will my Claude 4 API key stop working?
Your Anthropic API key still works for Claude Opus 4.8, Sonnet 4.6, and Haiku 4.5. It only stops working for the retired Claude 4 models. If switching to another provider, you'll need their API key.