Claude 4 Is Dead — Fix Your 410 Errors in 5 Minutes
Claude 4 Opus and Sonnet 4 were retired on June 15, 2026. Your API calls return HTTP 410 Gone errors. Here's exactly how to migrate — in 5 minutes, with 2 lines of code.
HTTP/1.1 410 Gone
Content-Type: application/json
{
"error": {
"type": "gone",
"message": "The model 'claude-4-opus-20250615' has been retired.
Please migrate to claude-opus-4-8 or visit
https://anthropic.com/models for alternatives."
}
}
Fix It in 3 Steps (5 Minutes)
Find your Claude 4 model IDs
Search your codebase for these strings. They're usually in one config file or API call:
claude-4-opus-20250615
claude-4-opus
claude-sonnet-4-20250514
claude-sonnet-4
claude-opus-4-8
claude-sonnet-4-6
Pick your replacement (by cost)
If you want the cheapest option, switch providers. If you want to stay with Anthropic, just update the model name:
| Model | Input / Output (per 1M tokens) | Savings vs Claude 4 Opus |
|---|---|---|
| Claude Opus 4.8 (Anthropic) | $5.00 / $25.00 | 67% cheaper |
| Claude Sonnet 4.6 (Anthropic) | $3.00 / $15.00 | 80% cheaper |
| GPT-5 (OpenAI) | $1.25 / $10.00 | 92% cheaper |
| Gemini 2.5 Pro (Google) | $1.25 / $10.00 | 90% cheaper |
| DeepSeek V4 Pro (DeepSeek) | $0.44 / $0.87 | 97% cheaper |
| DeepSeek V4 Flash (DeepSeek) CHEAPEST | $0.14 / $0.28 | 99% cheaper |
💡 Pro tip: Use our Migration Advisor to find the cheapest model for YOUR specific spend — in 60 seconds.
Want the full picture? See our ranked comparison of all alternatives →
Don't want to do this manually?
Enter your current model and monthly spend — the free calculator shows the exact cost for your workload across all 88 models. No signup required.
Update your code and redeploy
It's just 2 lines of code. Here's the change for each provider:
- model: "claude-4-opus-20250615"
+ model: "claude-opus-4-8"
// That's it. Same API key, same SDK, same everything.
// Claude Opus 4.8 is 67% cheaper with better performance.
- model: "claude-4-opus-20250615"
+ model: "gpt-5"
// Requires OpenAI API key from platform.openai.com
// GPT-5 is 87% cheaper than Claude 4 Opus.
- model: "claude-4-opus-20250615"
+ model: "deepseek-v4-pro"
- base_url: "https://api.anthropic.com/v1"
+ base_url: "https://api.deepseek.com/v1"
// Requires DeepSeek API key from platform.deepseek.com
// 97% cheaper. Similar quality to Claude 4 Opus.
Claude 4 vs Opus 4.8 — Is the Successor Worth It?
The #1 question after shutdown: should you stay with Anthropic or switch providers? Here's the honest comparison.
- ❌ API returns 410 Gone
- ❌ No longer available
- ❌ No support or updates
- ❌ 200K context window
- ✅ Same API key, same SDK
- ✅ Better quality scores
- ✅ Active support + updates
- ✅ 1M context window
⚠️ What Happens If You Don't Fix This?
Claude 4 retired on June 15. Your API calls return 410 errors right now. Every hour you wait, you're losing money on failed requests. Fix it in 5 minutes.
Get the Claude 4 Migration Cheat Sheet (Free)
We'll send you a one-page PDF with the exact model IDs, pricing, and code snippets for every Claude 4 replacement. Plus weekly pricing updates.
No spam. Unsubscribe anytime. We respect your inbox.
💸 How Much Are You Losing Since Claude 4 Died?
Claude 4 was retired on June 15. Enter your monthly spend to see what it's costing you every day.
Everything Is Free — No Catch
The free guide shows you the options. APIpulse shows you the right one for YOUR code.
- ✓ Generic migration steps
- ✓ Cost comparison table
- ✓ Code snippets for 3 providers
- ✓ Links to alternatives
- ✓ YOUR personalized migration plan — exact model, exact cost
- ✓ 10 saved scenarios — compare "stay Anthropic" vs "switch" side by side
- ✓ PDF cost report — for your CTO, team, or budget approval
- ✓ Model recommendations — "use Haiku for X, DeepSeek for Y"
- ✓ 88 models, 10 providers — every major API in one place
Join 8,300+ developers who use APIpulse weekly · 88 models · 10 providers · 139 tools · $0 subscription — ever
🧮 Calculate YOUR Exact Savings
Enter your Claude 4 usage below. See what you'd pay with each alternative.
🚀 Get Your Personalized Migration Plan — Instantly
Stop guessing. Enter your current model and monthly spend — our tools show you the exact model, provider, and cost for YOUR workload. Save 10 migration scenarios, export PDF reports for your team, and get weekly pricing updates. Most devs save 67-97% on their first month.
- Your exact migration cost — calculated from YOUR token usage, not generic estimates
- 10 saved scenarios — compare "stay Anthropic" vs "DeepSeek" vs "GPT-5" side by side
- PDF cost report — export a professional report for your team, CTO, or budget approval
- Model recommendations — "use Haiku for chatbot, DeepSeek for batch" (personalized to YOUR workload)
- Priority migration support — email us your config, we'll tell you exactly what to change
No signup required · Instant access · No subscription — ever