Rarvis

MODELS

Rarvis runs on the best models.

We don't train foundation models. We pick the best ones, route them well, and pay most of your bill.

RARVISPost-trained on open-source models, optimized for long-horizon research tasks.
Rarvis 1.0 Lithium
rarvis-1.0-lithium · Post-trained open model

Fast, everyday research tasks. The default

INPUT

$0.22

OUTPUT

$0.66
Rarvis 1.0 Silicon
rarvis-1.0-silicon · Post-trained open model

The stronger all-rounder

INPUT

$0.44

OUTPUT

$1.32
Rarvis 1.0 Titanium
rarvis-1.0-titanium · Post-trained open model

The hardest, longest-horizon tasks

INPUT

$0.66

OUTPUT

$1.98
ANTHROPICSonnet & Opus at 15% of list; Fable 5 at 50%
Claude Sonnet 5
claude-sonnet-5 · Anthropic

The everyday workhorse. Fast and steady

INPUT

$2.00$0.30

OUTPUT

$10.00$1.50
Claude Opus 5
claude-opus-5 · Anthropic

Long-horizon analysis and deep reasoning

INPUT

$5.00$0.75

OUTPUT

$25.00$3.75
Claude Fable 5
claude-fable-5 · Anthropic

The Mythos-class flagship for the hardest problems. Ultra exclusive

INPUT

$10.00$5.00

OUTPUT

$50.00$25.00
OPENAIYou pay 10% of list price
GPT 5.6 Luna
gpt-5.6-luna · OpenAI

The light and quick one. Available on Free

INPUT

$0.20$0.02

OUTPUT

$1.20$0.12
GPT 5.6 Terra
gpt-5.6-terra · OpenAI

Fast, disciplined reasoning

INPUT

$2.00$0.20

OUTPUT

$12.00$1.20
GPT 5.6 Sol
gpt-5.6-sol · OpenAI

The deepest reasoning

INPUT

$5.00$0.50

OUTPUT

$30.00$3.00

USD per M tokens. Strikethrough shows the vendor's official list price; Rarvis models are priced directly, no strikethrough. Model access follows your plan: Free includes Lithium and Luna, Plus unlocks Sonnet, Terra and Silicon, Pro unlocks Opus, Sol and Titanium, and Fable 5 is exclusive to Ultra.

Your research, subsidized.

It works like a grant. You don't have to apply.

90%
of your GPT bill, covered by us
85%
of your Claude bill, covered by us
50%
of even the Fable 5 flagship, covered

Every request is metered at the vendor's official list price. You can audit every line. Compute, execution environments, and storage are included in your plan. You only pay for intelligence.

Why would you do that?

Because we're growing, and this is how we'd rather spend the money.

The models are real. Every request goes to the official API, metered at the official price. You can audit every line.

Try it with your hardest problem.

Or pick it yourself.

Rarvis 1.0 Lithium is the default. Each plan unlocks stronger models, switchable per task. When better models ship, we evaluate them and bring them here.

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