Yggdrasil
Agent

Advanced Reasoning System

Explore multiple paths to find the best answer for you. Navigate the Ten Realms of cognition. Let the knowledge flow through the Rainbow Bridge!

Coming soon

Demo coming March 2026, $2 in free credits to try

10
Realms
Different ways to reason through your question
Parallel Paths
Explore many approaches at once
76+
Tools
MCP gateway. Web search, code, spreadsheets, PDF export & more
71.7%
GAIA
~$0.08 mean per GAIA task; cost may rise up to $2. Odin more expensive; Loki ~$0.001–0.005 per query

Real-World Use Cases

Real-world use cases for Yggdrasil Agent include software development, research, data science, business analysis, and multilingual work. Yggdrasil Agent adapts to your task: from spreadsheet analysis to citation-heavy research.

Software Dev
Debug production issues, code review, architecture design, security audits
Research
Literature reviews, multi-language sources, citation-heavy reports
Data Science
Excel/CSV analysis, statistical modelling, trend prediction with Sindri
High Quality Research Sources
Evidence-based sources, PubMed priority, peer-reviewed evidence valued, trusted guidelines and citations
Business
Market analysis, competitive intelligence, strategic planning
Multilingual
Translation, cross-language research, localisation (12+ languages)
Weather / Aura
Conditions, forecasts, and ambient context for planning and mood
Brainstorming
Ideation, alternatives, creative exploration with parallel branches
Learning
Explain concepts, summaries, Q&A, and step-by-step tutorials
Writing / Content
Drafts, outlines, editing, and long-form content with cited sources
Math & STEM
Proofs, physics, formal logic. Kvasir mode with DeepSeek-R1 and ToRA verification
Document / OCR
Invoice and receipt processing, form extraction, scanned PDFs with Veðrfölnir vision

Try it

# Debug production issue
yggdrasil --tools "Analyze this stack trace and suggest fixes"
# Literature review (Tyr + Fimbulwinter)
yggdrasil --persona tyr --web-search --fimbulwinter "Find primary sources on CRISPR... 2020–2026"
# Quick answer (<1s, ~$0.001)
yggdrasil --persona loki "What's the capital of Mongolia?"

Choose Your Mode

Switch modes via the icons in the chat or type slash commands: /loki, /odin, /kvasir, /tyr, /sindri, /export.

Normal
Balanced reasoning (default). ~7 pages, 100–300s. Resets persona modes. Most everyday tasks and questions.
Loki
Ultra-fast chat with witty persona. Bypasses deep reasoning for instant responses (~1–3 sentences, <1s). Quick answers, brainstorming, casual chat.
Kvasir
SOTA math reasoning (DeepSeek-R1) with ToRA verification. Proofs, physics, formal logic. ~15 pages, 150–500s.
Tyr
Multilingual research with sources in 12+ languages. Priority on primary sources. ~10 pages. International perspectives.
Eir
Science and health research with academic citations and interrogative workflow. PubMed priority. Peer-reviewed evidence valued. ~10–15 pages.
Odin
Multi-realm deep analysis with Battle Plan display and subtask progress. ~20 pages, 400–800s. Complex problems, strategic planning.
Sindri
Autonomous coding with Claude Code in E2B sandbox. Multi-turn dev work. Variable length (60s–20min). Coding, refactoring, file analysis.

Vision

Yggdrasil Agent is a vendor and model agnostic advanced reasoning system built for performance. Access Yggdrasil Agent via REST API, MCP gateway, CLI, or web UI: no lock-in, full customization, and full control of your data.

Multi interface

  • API: headless integration
  • MCP: plug any MCP, tool orchestration
  • CLI: scripts & profiles
  • Chainlit UI: chat

Use the interface that fits your workflow.

Vendor agnostic

Multiple LLM backends: OpenRouter + direct APIs.

Switch providers without rewriting your workflow.

Model agnostic

Realm-specific SOTA: DeepSeek R1, Qwen Coder, Perplexity Sonar, Gemini, Claude Opus, GPT, and more.

  • Mix and match
  • No single model dictates your stack

Performance focused

  • Valkyrie early exit + parallel scouts
  • Smart context truncation: lower cost & latency
  • Real-time cost tracking

Full customization

Modes: Loki, Odin, Eir, Tyr, Kvasir, Sindri

  • Memory profiles & personas
  • Tune behaviour, budgets, tool sets

Full data control & download

Your data stays yours.

  • Export & download: conversations, memory, sessions
  • Privacy modes
  • Local / self-hosted where available

Features

Yggdrasil Agent features four stag perspectives that run simultaneously inside every realm. Valkyrie monitors each scout in real-time and triggers early exit on breakthroughs, delivering up to 2.2× speedup on GAIA-class queries.

The Four Stags (Per-Realm Parallel Perspectives) Learn more →

Dáinn, The Chronicler
Gathers evidence and prior knowledge. Best for research and building on established work.
Dvalinn, The Weaver
Threads ideas into unified narratives. Best for synthesis and finding coherence across sources.
Duneyrr, The Challenger
Questions assumptions and probes contradictions. Best for critical analysis and stress-testing.
Durathor, The Pathfinder
Explores unexpected solution spaces. Best for creative breakthroughs and novel angles.

𓆩✧𓆪 Valkyrie Protocol Learn more →

Monitors every parallel scout in real-time. When a scout emits a high-confidence signal (ANSWER[0.92]), Valkyrie cancels remaining scouts and routes directly to Ragnarök synthesis.

2.2×
Max Speedup
~33%
Avg GAIA Savings
98%
Scout Cost Save
0.85
Confidence Gate
CONVERGE
Answer ≥ 85% confidence → cancel remaining scouts, route to synthesis immediately.
DEEPEN
One path 30%+ more promising → focus resources on the winning direction.
PROPAGATE
Useful constraint found → broadcast to all active scouts to prevent duplicated work.
CONTINUE
No breakthrough detected → all scouts keep running until completion.

The World Tree

The World Tree is Yggdrasil Agent's architecture: key capabilities that power every reasoning path. These include routing and memory, conflict resolution, context isolation, and cross-session learning. Four Stags →

Asgard Midgard Jotunheim Muspelheim Niflheim Vanaheim Alfheim Nidavellir Helheim Runegard
𐂃
Sleipnir
Routes to next realm or Ragnarök every iteration
👁
Odin's Foresight
Task decomposition, GAIA patterns, battle plans
𓅇
Veðrfölnir
Vision extraction - OCR, layout, one pass for all realms
Sindri
Code execution in E2B sandbox; Python, shell, spreadsheets
𔒝
Muninn
Long-term memory recall and store across sessions. Memory Vault: stats, backup, ChromaDB download.
Forseti
Conflict resolution with 3-pillar LLM-as-Judge
𖣑
Heimdall
Semantic answer validation before final synthesis
Gleipnir
Loop prevention, circuit breakers, forced convergence
𓆩✧𓆪
Valkyrie
Breakthrough-triggered early exit on parallel scouts

Efficiency · Shared knowledge · Learning from mistakes

❟❛❟

Save & rewind

Save your progress. If something goes wrong, rewind and try again, no starting from scratch.

Saves at important steps
Rewinds when something fails or times out
Tries again with a different approach
No redoing everything from the start
𔓂

Shared memory

One search, everyone benefits. No repeated lookups or duplicate work.

Findings are shared across all reasoning paths
No duplicate web searches or tool runs
Smart recall: similar questions reuse answers
Fresh each session: resets after 24 hours

Learn from mistakes

Remembers what went wrong. Doesn't repeat the same mistakes.

Remembers why something failed
Across conversations: lessons stick around
Learns from every dead end

Usage & Integrations

Usage options for Yggdrasil Agent are three: interactive web UI (Chainlit), command-line with memory profiles, or headless REST API. All three share the same core reasoning engine.

First 5 minutes

  1. Prerequisites: Docker, OpenRouter API key (sk-or-v1-...)
  2. Configure: cp env.example .env → add OPENROUTER_API_KEY
  3. Launch: docker compose up -d mcp-gateway then docker compose up yggdrasilagent-ui
  4. Test: Open localhost:8000 → login with any username + password local
🌐

Chainlit Web UI

The primary interface. Chat with streaming, visual realm navigation, creature insights, real-time cost tracking (USD), voice input, and PDF export of reasoning sessions with clickable citations.

# Docker (recommended)
docker compose up yggdrasilagent-ui
# Local
chainlit run apps/app_chainlit.py
# Then open:
http://localhost:8000
◆ Streaming chat with realm progress
◆ Google OAuth (production) or local auth
◆ Typo-tolerant quick commands
◆ Real-time cost summary per session
◆ PDF export (scientific paper-style, clickable citations)

CLI Interface

Full-featured command-line agent with memory profiles, session management, persona switching, privacy modes, and budget-constrained queries.

# Web search + memory profile
yggdrasil --web-search --profile work \
"Analyze AI agent market 2026"
# Privacy mode (no persistence)
yggdrasil --private "Sensitive query"
# Odin persona, 8 iterations
yggdrasil --persona odin --max-iterations 8
Memory profiles: --profile work, --profile research — context isolation
Privacy: --fresh (one-off), --private (read, don't save)
◆ Session resume & export
◆ 7 persona modes (Loki, Odin, Eir, Tyr…)

REST API (FastAPI)

Headless access via Google OAuth2 + JWT. Full Swagger UI at /docs. Designed for integration into your own applications and workflows.

POST /api/v1/reason
{
"query": "Analyze EV market 2026",
"max_iterations": 5,
"enable_web_search": true,
"profile": "business"
}
# → final_answer, cost, citations
◆ Google OAuth2 + JWT auth
◆ Session management endpoints
◆ /docs

GAIA benchmark results

Yggdrasil Agent achieves 71.7% (43/60) on the GAIA benchmark (current test set). ~$0.08 mean per GAIA task; Odin mode is more expensive. Cost may rise up to $2 USD per task. This is proprietary benchmark data for the Yggdrasil Agent reasoning system.

71.7% (43/60) · L1: 17/20 (85%) · L2: 17/20 (85%) · L3: 9/20 (45%)

Choose Your Tier

Pricing for Yggdrasil Agent: demo access is coming in March 2026, includes $2 USD in free credits to try the system.

More tiers coming soon.

Plant the Seed Today

Ready to start? Cross the Rainbow Bridge or explore the REST API.

Coming soon API Docs

Request custom mode for your Yggdrasil Agent account!

Book consultation

Custom mode & consultation

Request a custom mode for your Yggdrasil Agent account or book a consultation to discuss your use case.

Get in touch