💡 67% cheaper with Claude Opus 4.8. Or save up to 97% by switching providers — see alternatives below.

📊 10 Alternatives Ranked by Cost

Every alternative to Claude 4 Opus, ranked by total monthly cost. Use our Cost Calculator to find the cheapest model for YOUR specific token usage.

Model Provider Input / Output (per 1M tokens) vs Claude 4 Opus ($15/$75) Migration
Claude Opus 4.8 DROP-IN Anthropic $5.00 / $25.00 67% cheaper Change model name only
Claude Sonnet 4.6 DROP-IN Anthropic $3.00 / $15.00 80% cheaper Change model name only
GPT-5 POPULAR OpenAI $2.50 / $10.00 87% cheaper New API key + model name
Gemini 2.5 Pro Google $1.25 / $5.00 93% cheaper New API key + model name
DeepSeek V4 Pro BEST VALUE DeepSeek $0.44 / $0.87 97% cheaper New API key + base URL
Llama 4 Maverick Meta (via providers) $0.20 / $0.40 98% cheaper New API key + base URL
Mistral Large 2 Mistral $2.00 / $6.00 92% cheaper New API key + base URL
Grok 3 xAI $3.00 / $15.00 80% cheaper New API key + base URL
Cohere Command R+ Cohere $2.50 / $10.00 87% cheaper New API key + SDK

💡 Drop-in = same API key, same SDK, just change model name. Popular = most widely used alternative. Best Value = best quality-to-price ratio.

📝 Language-Specific Migration Guides

Find your language below. Each guide shows the exact code change needed. For detailed code snippets, see our 410 Error Fix Guide.

🐍

Python

Change model="claude-4-opus" to model="claude-opus-4-8" in your Anthropic Python client.

See Python Fix →
💚

Node.js

Change model: 'claude-4-opus' to model: 'claude-opus-4-8' in your SDK call.

See Node.js Fix →
📡

cURL

Change "model": "claude-4-opus" to "model": "claude-opus-4-8" in your request body.

See cURL Fix →
🔵

Go

Change Model: "claude-4-opus" to Model: "claude-opus-4-8" in your Go client.

See Go Fix →
💎

Ruby

Change model: 'claude-4-opus' to model: 'claude-opus-4-8' in your Ruby client.

See Ruby Fix →
🔍

Search Your Codebase

Run grep commands to find every instance of the old model IDs in your project.

See Search Commands →

✅ Step-by-Step Migration Checklist

Follow this checklist to migrate from Claude 4 to a working alternative:

1. Find all Claude 4 model IDs in your codebase Search for "claude-4-opus", "claude-sonnet-4", "claude-4-haiku" in all files
2. Choose your replacement model Stay with Anthropic (cheapest drop-in) or switch providers (bigger savings)
3. Update model names in your code Change "claude-4-opus" → "claude-opus-4-8" (or your chosen replacement)
4. Update base URL (only if switching providers) Anthropic: no change. OpenAI: api.openai.com. DeepSeek: api.deepseek.com
5. Get new API key (only if switching providers) Anthropic: existing key works. New provider: get key from their dashboard
6. Update environment variables Check .env files, CI/CD configs, Docker files, and deployment configs
7. Test your application Make a test API call to verify the new model works correctly
8. Deploy and monitor Deploy your changes and monitor for any errors in the first hour

🧮 Calculate Your Exact Savings

Don't guess. Use our interactive calculator to find the cheapest model for YOUR specific token usage. Enter your monthly input/output tokens and see exact costs for all 88 models.

🧮

Interactive Cost Calculator

Compare costs across 88 models from 10 providers. See exactly how much you'd save.

Open Calculator →

Free · No signup required · 88 models · 10 providers

📋 Model ID Reference

Complete mapping from old Claude 4 model IDs to new ones:

Old Model ID (Retired) New Model ID (Anthropic) New Model ID (Cheapest)
claude-4-opus claude-opus-4-8 deepseek-v4-pro
claude-4-opus-20250615 claude-opus-4-8 deepseek-v4-pro
claude-sonnet-4 claude-sonnet-4-6 deepseek-v4-flash
claude-sonnet-4-20250514 claude-sonnet-4-6 deepseek-v4-flash
claude-4-haiku claude-haiku-4-5 deepseek-v4-flash

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⏱️ Money leaking since shutdown
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based on $500/mo Claude 4 spend
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🔴 Claude 4 is retired — Get the complete toolkit Free Tools →