Sage2

Developer Tools

Freemium

Added on Nov 09,2026

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Description

Sage2 is a decision and extraction model from Levanto Labs that software can call at runtime to get typed answers with a calibrated confidence score.

Instead of hard-coding rules such as regular expressions, a running program sends text and a question to Sage and continues based on the answer. If Sage is unsure it returns null, so your code knows when to hand a case to a human.

Key features include a decide endpoint for yes/no, choice, scale, tags and sort questions, a streaming WebSocket endpoint where the answer updates as text arrives, and an extract endpoint that turns text into structured fields such as money amounts. It also supports batching, reasoning, image inputs and web search from the same API key.

Levanto reports a median latency of around 330 ms and an accuracy of 93.9% for Sage v1.1 on 213 public JevBench tasks, with per-decision costs well below general frontier language models on the same questions.

Example uses on the site include detecting personal information in documents, spotting refund requests, deciding when a support conversation needs escalation, moderating posts with tags and extracting invoice fields.

Levanto also published SageCraft, a free open-source research framework under Apache 2.0 in which Sage plays World of Warcraft from screenshots and keystrokes, with recorded decisions and replay tools on GitHub.

Pricing: a Free plan includes $1 of usage a month. Paid plans are Developer at $14 per month, Starter at $49, Pro at $99 and Growth at $249, each including the same amount of usage. Input is priced from $0.05 per million tokens and output at $1 per million tokens, with web search at $0.10 each.

It is suited to developers and teams building agents, workflows, support tooling and data pipelines that need fast, low-cost decisions inside their code.

By the PowerfulAI.tools Editorial Team · Updated 10 November 2026 · Researched with AI assistance and checked against the official Sage2 website · How we review tools

Sage2 Key Features

  • Decision API returns typed answers such as yes/no, choice, scale, sort or tags
  • Streaming mode updates its answer as text arrives, for example during live calls
  • Extraction turns free text like orders or invoices into structured fields
  • Reads text and images (images in beta), with optional reasoning and web search
  • Returns a probability with each answer so uncertain cases can go to a person
  • POST /usage/estimate returns token counts before you send a decision

Sage2 Pricing

Free plan includes $1 of usage a month; paid plans cost $14, $49, $99 or $249 per month, each including that amount in usage, with input from $0.038 to $0.05 per 1M tokens.

Pricing checked against the official Sage2 website in November 2026. Prices can change, so confirm before you buy.

Who is Sage2 best for?

Developers who want their software to make semantic decisions at runtime, such as flagging personal information or moderating posts, without calling a full LLM.

Things to know before using Sage2

  • When monthly usage runs out, calls return 402 until the next period or an upgrade
  • Image input is in beta

Sage2 FAQs

Is Sage2 the same as Sage by Levanto Labs?

Yes. The listed website now presents the product as Sage, a decision model API from Levanto Labs.

Does Sage charge per seat?

No. Plans have no seats and no overage invoices, and unused usage does not roll over.

Sage2 Alternatives

Popular alternatives to Sage2 include Pollinations, NemoClaw and Agnes AI. Compare their pricing and what each is best for below.

ToolPricingBest for
Pollinations Freemium Developers and hobby builders who want a single API for adding AI images, audio and text to their websites, bots and app...
NemoClaw Free Developers and platform teams who want to run always-on AI agents on NVIDIA hardware under policy-based security control...
Agnes AI Freemium Developers building AI-powered apps who want access to several models through one API.
OrcaRouter Freemium Developers and teams who want to balance AI quality and cost across many models.
DiagramGPT Free Developers and students who need to sketch system designs and workflows quickly by describing them in words.
  • ai
  • tool
  • tools
  • decision model
  • ai api
  • llm api
  • classification
  • data extraction
  • structured output
  • confidence score
  • yes no questions
  • content moderation
  • pii detection
  • support escalation
  • invoice extraction
  • streaming decisions
  • ai agents
  • workflow automation
  • developers
  • low latency
  • image input
  • web search
  • open source
  • sagecraft
  • levanto labs
  • benchmarks

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