GEX Horizon VS Diffyn

GEX Horizon's answer

GEX Horizon is the only free platform that delivers real-time, sub-second gamma exposure data via WebSocket streaming. Most GEX tools update once daily — we update with every options trade. Key differentiators:

• Live zero gamma flip detection — know the exact strike where dealer positioning shifts regime in real-time, not at yesterday's close
• Free institutional-grade analytics — call/put walls, dealer hedging velocity, and 0DTE flow are typically locked behind expensive paywalls elsewhere
• Multi-asset coverage — SPX, SPY, QQQ, NDX plus single stocks like NVDA, TSLA, AAPL, MSFT all in one dashboard
• No delayed snapshots — WebSocket-powered streaming means you see dealer positioning as it changes, not 15 minutes ago

Diffyn's answer:

Addresses workflow and change management on LLM prompts, provide teams with traceability and visualization of tests across multiple models, provide deeper understading into efficiency of these prompts.

GEX Horizon's answer

• Real-time, not daily — WebSocket streaming delivers sub-second GEX updates, so you see dealer positioning as it shifts, not yesterday's snapshot
• Free institutional-grade data — Call/put walls, zero gamma flips, dealer hedging velocity, and 0DTE flow are all available at no cost — features typically locked behind expensive paywalls
• Zero gamma flip detection — Know the exact strike where the market shifts from volatility suppression to acceleration, in real-time
• Multi-asset in one view — SPX, SPY, QQQ, NDX plus single stocks (NVDA, TSLA, AAPL, MSFT) all tracked from a single dashboard
• 0DTE-specific analytics — Isolate same-day gamma exposure to understand how 0DTE options are driving intraday dealer behavior and pinning forces
• No API key or setup required — Open the dashboard and start trading. No subscriptions, no configuration, no delayed data tiers
• Built by traders, for traders — Every feature is designed around the question: "What will dealers be forced to do next?"

Diffyn's answer:

Diffyn is the platform that specializes on both change management and multi-model analysis.

Diffyn's answer:

React, Next.js, POSTGRESQL

GEX Horizon's answer

• 0DTE options day traders who need to know whether dealer hedging will suppress or accelerate intraday moves
• SPX/SPY index options traders who use gamma levels as key support/resistance in their daily planning
• Futures traders hedging ES/NQ positions who need to understand dealer delta exposure dynamics
• Retail options traders seeking institutional-grade market structure data without paying premium subscriptions
• Quantitative analysts monitoring real-time dealer positioning for systematic strategy signals
• Financial advisors and PMs who want a quick daily read on whether the market is in a long-gamma or short-gamma regime

Diffyn's answer:

Professionals incorporating LLMs or AI tools in their workflow and wants to keep track of changes and test their prompts.

GEX Horizon's answer

GEX Horizon was built out of frustration with the status quo in options analytics. Institutional traders have always had access to real-time gamma exposure data — it's fundamental to understanding market maker behavior and intraday volatility regimes. Yet the tools available to most traders were either:

• Expensive ($30-100+/month for daily snapshots)
• Delayed (refreshing once per day, missing intraday regime shifts)
• Incomplete (showing gamma charts without zero gamma flips, call/put walls, or hedging velocity)

We believed that every trader deserves to see where the dealers are positioned — in real-time, without a paywall. So we built the WebSocket infrastructure, the real-time GEX computation engine, and the intuitive dashboards that make institutional-grade options market microstructure data accessible to everyone. The result is GEX Horizon — free, real-time, and built for the traders who need it most.

Diffyn's answer:

I started working on Diffyn when I notice that prompting has become an essential part of work across many industries. While there are version control platofrms like github, they are not designed for just prompt management are can be overkill such applications, it is also not integrated natively with various LLMs and relevant tools for users to validate ideas and visualise results properly.