Betting Markets Suggest Open AI Will Release GPT-5 This Week

On all timeframes, the Polymarket odds for GPT-5 to be relased this week have been increasing, with a 75% chance that the model is released by Sunday, August 10.

The timelines were brought forward following Sam Altman’s appearance on Theo Von’s podcast, his comments on X, and press leaks. There’s even speculation that large buys from new accounts on the GPT-5 markets are likely to be insiders.

Odds suggest Open AI’s GPT-5 will launch this week, Source: Polymarket

GPT-5 is expected to launch within days, offering an “auto-routing” brain that decides on the fly whether to reply with a fast, cheap GPT-style engine or a slower, reasoning-heavy o-series engine, sparing users the guesswork. Think minor evolution, not revolution, but still a crucial edge in the AI arms race.

Key takeaways

1. Shape-shifter architecture – GPT-5 fuses the quick-reply GPT models with the deep-thinking o-series models and chooses between them automatically, promising the best mix of cost, speed and brainpower for each query.

2. Tiered access –
   • Free users: unlimited chat at “standard” GPT-5 intelligence

   • Plus ($20/mo): mid-tier IQ bump

   • Pro: highest IQ, bigger context windows, extras like voice, canvas and deep-research tools.

3. Incremental, not seismic – Expect smoother, faster replies and better code generation, but no GPT-3-to-GPT-4-scale leap. Altman calls it “experimental,” not Math-Olympiad gold-medal level yet.

4. Why it matters – Eliminating manual model selection should cut hallucinations, lower costs for simple prompts and deliver deeper reasoning for STEM or multi-step tasks—all through one endpoint.

5. Inside baseball – Development was rocky (Orion stalled, GPU hunger soared, Meta poached researchers), but a new “universal verifier” for reinforcement learning helped steady progress. GPT-5’s success will hinge on keeping OpenAI ahead in the GPU-intensive talent and compute race.

GPT-5 won’t be magic, but it could make ChatGPT feel smarter and cheaper to use—exactly the kind of incremental win OpenAI needs as rivals like Google, Anthropic and xAI double down on similar tricks.

Another market attracting attention is based on whether Open AI will release a browser in 2025. OpenAI’s browser, codename “Aura,” is also now expected to launch this year. The Chromium browser will feature an AI-powered search engine and agentic functions for task automation. It will compete directly with Google and other browsers.

There’s a 74% chance that Open AI will release a browser this year, source: Polymarket