Gemini 2.5 retires in · migrate before 16 Oct 2026

Migrate with evidence, not assumptions.

Pathfinder reads your real Gemini usage, replays it against the 3.x models inside your own project, and tells you exactly where every workload should land — and what it will actually cost. Measured, not guessed.

See how it works
−80%
measured spend cut, right-sized
3 days
vs 2–3 weeks by hand
99.4%
of spend attributed
The pipeline

Seven stages from raw usage to a signed plan.

Each stage does one job and hands the next a cleaner artifact. Stages marked need a human decision — pick any to see what it takes to run it.

What measurement found

The headline flips once you stop guessing.

These came out of a real run against real Gemini calls — and each one contradicts the assumption everyone starts with.

−26%

Lift-and-shift got cheaper

The "5× price shock" was supposed to multiply the bill. Measured, moving everything to 3.5 Flash cut it a quarter — because 2.5 Flash was burning 96% of its output on hidden reasoning that 3.5 Flash skips by default.

90%

The estate was already broken

Nine in ten of one workload's responses were hitting the token cap and returning invalid JSON — today, on 2.5 Flash, before any migration. The thinking tokens were eating the output budget.

404

One path can't be proven

The frontier model a heavy workload needs doesn't exist in the project's regions. Pathfinder prices it, flags it modelled, and routes it to a human — it never quietly emits a number it couldn't measure.

The one principle
Here, a cost is never just a number. It carries its own evidence — and a total is only as trustworthy as the weakest figure inside it.
Measured
We ran your traffic against the new model and watched.
Logged
It's in your own telemetry, observed but not replayed.
Modelled
An assumption applied to your data — shown with a range.
Assumed
A registry default. The weakest claim; flagged as such.

See where your estate should land.

The clock is the only thing not negotiable.