Top AI LaTeX Tools Compared: Pricing, Speed, Accuracy

The AI LaTeX Landscape in 2025

Multiple tools now claim AI-powered LaTeX editing. But which ones actually deliver? We tested the top options across pricing, speed, and accuracy.

The Contenders

1. Octree — AI-first LaTeX editor 2. Overleaf — With AI add-ons 3. Crixet — Math-focused AI features 4. ChatGPT/Claude — Direct AI usage 5. GitHub Copilot — In VS Code

Pricing Comparison

| Tool | Free Tier | Paid |

|------|-----------|------|

| Octree | ✅ Basic | $20/mo Pro |

| Overleaf | ✅ Limited | $15-30/mo |

| Crixet | ✅ Limited | ~$15/mo |

| ChatGPT | ✅ Limited | $20/mo Plus |

| Copilot | ❌ | $10-19/mo |

Best value: Octree Pro at $20/mo includes full AI + fast compilation

Speed Comparison

Compilation (50-page document)

| Tool | Compile Time |

|------|--------------|

| Octree | 3.5s |

| Overleaf | 35-90s |

| Crixet | 12s |

| Local + AI | Varies |

AI Response Time

| Tool | Response |

|------|----------|

| Octree | <1s |

| Overleaf | 2-3s |

| Crixet | 1-2s |

| ChatGPT | 2-5s |

Fastest: Octree (compilation and AI)

Accuracy Comparison

We tested each tool on:

• 10 common LaTeX errors

• 5 equation formatting tasks

• 5 document structure changes

Error Fixing Accuracy

| Tool | Correct Fixes | Partial | Failed |

|------|--------------|---------|--------|

| Octree | 9/10 | 1/10 | 0/10 |

| Overleaf | 0/10 (no auto-fix) | N/A | N/A |

| Crixet | 4/10 | 3/10 | 3/10 |

| ChatGPT | 7/10 | 2/10 | 1/10 |

Equation Generation Accuracy

| Tool | Perfect | Minor issues | Wrong |

|------|---------|--------------|-------|

| Octree | 4/5 | 1/5 | 0/5 |

| Crixet | 3/5 | 1/5 | 1/5 |

| ChatGPT | 3/5 | 2/5 | 0/5 |

Document Structure Changes

| Tool | Perfect | Partial | Failed |

|------|---------|---------|--------|

| Octree | 5/5 | 0/5 | 0/5 |

| Crixet | 2/5 | 2/5 | 1/5 |

| ChatGPT | 3/5 | 2/5 | 0/5 |

Most accurate: Octree (consistent across all tests)

Feature Matrix

| Feature | Octree | Overleaf | Crixet | ChatGPT |

|---------|--------|----------|--------|---------|

| Integrated editor | ✅ | ✅ | ✅ | ❌ |

| Autonomous editing | ✅ | ❌ | ❌ | ❌ |

| One-click fix | ✅ | ❌ | ❌ | ❌ |

| Multi-file aware | ✅ | ❌ | ❌ | ❌ |

| Real-time PDF | ✅ | ✅ | ✅ | ❌ |

| Image to LaTeX | ✅ | ❌ | ❌ | ✅ |

Use Case Recommendations

"I want the best AI for LaTeX"

Recommendation: Octree Why: Most complete AI integration, highest accuracy, fastest

"I'm on a tight budget"

Recommendation: Octree Free or ChatGPT Why: Free tiers with capable AI

"I need collaboration features"

Recommendation: Overleaf Why: Best real-time collaboration (Octree coming soon)

"I just need occasional help"

Recommendation: ChatGPT Why: General purpose, copy-paste workflow works

The Bottom Line

| Category | Winner |

|----------|--------|

| Overall AI | Octree |

| Price | Tie (similar pricing) |

| Speed | Octree |

| Accuracy | Octree |

| Collaboration | Overleaf |

| Offline | Local + Copilot |

Our Verdict

For researchers who want AI that truly accelerates their LaTeX workflow, Octree is the clear leader. The combination of autonomous editing, high accuracy, and fast compilation creates a workflow that others can't match.

Experience the difference. Try Octree free at https://useoctree.com