MiniMax moved M3 to tiered pricing: the official standard tier (inputs
up to 512K) is $0.30/$1.20 per M with $0.06 cache reads, doubling above
512K. Upstream LiteLLM now carries the standard tier, so the pinned
expectation follows it; the old $0.60/$2.40 figure is the long-context
tier, not the base price anymore.
Keep model pricing automatic instead of hand-coding new models. The bundler
now layers three sources in priority order: LiteLLM (broad list prices),
hand-curated MANUAL_ENTRIES overrides, then a separate last-resort fallback
file gap-filled from models.dev first-party makers (official direct prices)
and OpenRouter (resale backstop). New models such as MiniMax-M3 ($0.6/$2.4)
now price correctly with no per-model code.
The fallback is written to its own pricing-fallback.json and consulted only
case-insensitively as the final step in getModelCosts, so a reseller variant
name can never shadow a canonical or aliased match.
Fixes surfaced while building and verifying this:
- Alias precedence: LiteLLM ships snowflake/claude-4-opus ($5), which the
bundler strips to a bare claude-4-opus key that shadowed the curated alias
to claude-opus-4 ($15 official). An explicit alias for a bare name now wins
over a coincidental stripped reseller key; the prefixed gateway price is
still returned for the fully-qualified id.
- Zero-stub guard: LiteLLM [0,0] price stubs (e.g. GigaChat-2-Max) are
excluded from the case-insensitive index so a case-mismatched query stays
null and keeps firing the unknown-model warning instead of silently
reporting $0.
- Negative-sentinel guard: OpenRouter returns -1 for variable/BYOK-priced
models. The bundler now rejects any non-positive rate pair (and strips the
sentinel from cache fields) so a negative per-token cost can never ship and
subtract from spend totals.
Bundler hardening: bareKey strips @pin and date suffixes to match the runtime
canonical form, seen-set dedupes on both full and bare key shapes, and it logs
MANUAL_ENTRIES now covered upstream plus models.dev allowlist drift. Extracted
buildCosts so the cache-cost heuristics live in one place. Added a data-hygiene
test that fails CI if a rebundle reintroduces negative, free, or unreachable
fallback entries.
Adds FALLBACK_PRICING entries plus display names so MiniMax sessions
show up with the right cost and readable labels when users route MiniMax
through providers like OpenCode. Pricing verified against the live
MiniMax paygo page:
MiniMax-M2.7 input $0.3/M output $1.2/M cache-read $0.06/M cache-write $0.375/M
MiniMax-M2.7-highspeed input $0.6/M output $2.4/M cache-read $0.06/M cache-write $0.375/M
