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Claude (Anthropic) Open Source Alternatives
When privacy, local deployment, or customization matters, Claude (Anthropic) is not the only path. This page highlights open and low-cost alternatives.
Quick verdict
- Free tier: Limited messages/day
- Free API trial: no confirmed free API
- Access: relay or proxy may be needed
- Best for: chat / coding / reasoning
Models and limits
| Model | Context | Limit | Notes |
|---|---|---|---|
| Claude Sonnet 4.5 | 200k | Rate limited | Available to free users, excellent at coding |
Free API credits
Not confirmed
No confirmed free API credits in the current data.
API requires payment, no free tier
Access notes
Proxy may be needed
Requires proxy in China. API accessible via relay services. Registration needs non-China phone number.
Want one key for multiple model providers? openllmapi.com can aggregate compatible APIs.
Recommended path
Start from the main Claude (Anthropic) profile and confirm whether it fits your task.
If you only want to test it, use the free web product before upgrading.
Run one or two real tasks before paying or switching providers.
If access is unstable, compare relay options or local alternatives.
Related deals
Alternatives
FAQ
Does Claude (Anthropic) have a free tier?
Yes. Current record: Limited messages/day. Always confirm on the official site before relying on it.
Can I try the Claude (Anthropic) API for free?
No confirmed free API in our current data.
Can I use Claude (Anthropic) without a credit card?
You can usually try free product features first, but card requirements may change on signup.
What are good Claude (Anthropic) alternatives?
Check the alternatives section below or open the Claude (Anthropic) alternatives page.