Sage2

Sage2

Levanto Labs
Span-01

Span-01

Respan
Sage2 Span-01

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Sage2:

About

Sage2 is a cloud-hosted AI model and API for developers building software agents and automated workflows. It accepts structured task instructions and returns decisions or extracted information in machine-readable formats, allowing applications to delegate steps such as classification, routing, evaluation, and data extraction to a model designed for tool-using agents. Developers can call Sage through its API, inspect model behavior in browser-based demos, and connect it to agent development environments including Cursor and Claude Code. The service offers API usage pricing with a free tier and paid monthly plans; usage charges and included credits vary by plan. Sage is intended for individual developers and software teams that want to add decision-making and extraction capabilities to applications without hosting the model themselves.
Span-01:

About

Span-01 is a hyper-parallel reasoning classifier built to detect complex behaviors across long production traces in a single forward pass. Rather than generating tokens sequentially, it reasons over natural-language behavior definitions and returns direct probabilities for present, absent, and not_observable. The model is trained for general classification reasoning with RLAIF before being specialized for behavior detection, allowing it to apply previously unseen definitions to new behaviors and domains instead of relying on a fixed taxonomy. At inference time, hyper-parallel definition branches evaluate multiple behaviors against the same trace context simultaneously, while hybrid attention helps preserve reasoning over long, complex inputs. Span-01 is designed for production monitoring across safety, reliability, grounding, agent behavior, and response quality, including jailbreak and prompt injection detection, privacy, and secrets.
Sage2:

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported
Span-01:

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported
Sage2:

Audience

Software developers and teams building AI agents and automated workflows.
Span-01:

Audience

AI, safety, evaluation, and observability teams seeking to detect and score complex behaviors across long production traces with fast, probability-based classification
Sage2:

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported
Span-01:

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported
Sage2:

API

Offers API Supported
Span-01:

API

Offers API Supported
Sage2:

Screenshots and Videos

No images available
Span-01:

Screenshots and Videos

Sage2:

Pricing

$0
The Free plan costs $0/month and includes $0.20 in usage. The Developer plan costs $14/month and includes $14 in usage. Additional usage is charged by token and web-search rates shown on the pricing page.
Free Version Supported
Free Trial Not Supported
Span-01:

Pricing

$199 per month
Free Version Supported
Free Trial Supported
Sage2:

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software
Span-01:

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software
Sage2:

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported
Span-01:

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported
Sage2:

Company Information

Levanto Labs
Founded: 2026
United States
levanto.ai/model
Span-01:

Company Information

Respan
Founded: 2023
United States
www.respan.ai/blog/introducing-span-1
Sage2:

Alternatives

SubQ Snap 1.1

SubQ Snap 1.1

Subquadratic
Span-01:

Alternatives

Clef-flash

Clef-flash

Cloudflare
Sage2:
Span-01:
Clef

Clef

Cloudflare
Sage2:
Jev

Jev

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Span-01:
Sage2:
Span-01:
Tev1

Tev1

Together AI
Sage2:
Span-01:
Sage2:

Categories

AI Decision Models Supported
Span-01:

Categories

AI Decision Models Supported
Sage2:

Integrations

AssemblyAI Not Supported
Claude Code Supported
Cognee Not Supported
Cursor Supported
Google GenAI SDK Not Supported
JavaScript Not Supported
LangChain Not Supported
LinkUp Not Supported
LlamaIndex Not Supported
Mastra Not Supported
Mem0 Not Supported
OpenAI Not Supported
OpenAI Agents API Not Supported
PostHog Not Supported
Python Not Supported
TypeScript Not Supported
Vercel Not Supported
Span-01:

Integrations

AssemblyAI Supported
Claude Code Not Supported
Cognee Supported
Cursor Not Supported
Google GenAI SDK Supported
JavaScript Supported
LangChain Supported
LinkUp Supported
LlamaIndex Supported
Mastra Supported
Mem0 Supported
OpenAI Supported
OpenAI Agents API Supported
PostHog Supported
Python Supported
TypeScript Supported
Vercel Supported
Sage2:
Claim Sage2 and update features and information
Claim Sage2 and update features and information
Span-01:
Claim Span-01 and update features and information
Claim Span-01 and update features and information