tx: add claude-sonnet-5 pricing entries - #34
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Match upstream main's post-v0.8.7 additions. Rates are the current promotional pricing (through 2026-08-31): - base: $2 prompt / $10 completion per MTok - cache: $2.50 write / $0.20 read per MTok Without these entries, LibreChat's balance meter falls back to `defaultRate = 6` for both prompt and completion — flat $6/M applied to Sonnet 5 traffic instead of the correct 2/10 split. That over-meters input tokens (esp. the cached 40k system-prompt prefix) so users hit the balance cap earlier than the actual AWS spend justifies. Post-2026-09-01 the Anthropic rate flips to $3/$15 + $3.75/$0.30 cache. Upstream may or may not update these constants on that date — worth re-checking around then.
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Two-line addition to
packages/data-schemas/src/methods/tx.tsmatching upstream main's post-v0.8.7 pricing additions for Sonnet 5:prompt: 2, completion: 10(per MTok, promo)write: 2.5, read: 0.2(per MTok, promo)Why
Prod flipped all 6 modelSpec agents to
us.anthropic.claude-sonnet-5today. Our fork's tx.ts pricing table was missing the entry, so LibreChat's balance-meter fallback (defaultRate = 6) was charging users a flat $6/M for BOTH input and output. That over-counts cached input especially — the 40k system-prompt prefix gets billed at 60x its actual read rate.Net effect: users hit their 20M (203) or 80M (666) weekly token cap faster than they should.
Post-Sept 1 note
Anthropic's promo pricing ends 2026-08-31. On Sept 1 the rate flips to $3/$15 base + $3.75/$0.30 cache. Upstream may or may not push the update on that date — check back around then and bump these constants if upstream lags.