// relay economics
llmrelay vs apikey.fun
Both are Claude / GPT relays. Both are cheap. The differences are pricing depth, docs language, and how the fork is maintained.
Prices, side by side
Model
Anthropic list
apikey.fun
llmrelay
Opus 4.7 in
$5.00
~$3.50
$2.50
Opus 4.7 out
$25.00
~$17.50
$12.50
Sonnet 4.6 in
$3.00
~$2.10
$1.50
apikey.fun prices are approximate based on published rate tables. Both providers pass through official list price behavior for cache reads and other line items.
Where apikey.fun wins
- +Established brand in the Chinese-language developer market. If your team is on WeChat, they've likely heard of it.
- +Generous first-time credit for new signups.
- +Chinese-language docs and support — friction-free for CN developers.
Where llmrelay wins
- +Deeper discount — 50% off official list vs ~30% off.
- +English-first docs and support, no locale friction.
- +Published hidden-prompt neutralizer patch — we caught a 5,968-token prompt-injection billing exploit at the upstream and neutralized it in our fork. See the fork's service/llmrelay_hidden_prompt.go.
- +Prepaid credit in USD, Stripe-native billing, no crypto or QR code detours.
- +Affiliate program with paid-users-only invite gate — 10% first-topup commission, no freeloader chains.
Test the difference for $0.20
New accounts get $0.20 in free credit — enough to send a few hundred tokens through Opus 4.7 and see the invoice math with your own eyes.
Get API key →