Hackernews posts about GPT 4.5
- Show HN: Advent of Acro – A frameworkless PHP/JS video advent-calendar (advent.vs.digital)
- I ported JustHTML from Python to JavaScript with Codex CLI and GPT-5.2 in 4.5hrs (simonwillison.net)
- Opus 4.5 vs. GPT 5.2 vs. Gemini 3 Pro for Elixir development (elixirforum.com)
- Show HN: Forecaster Arena – Testing LLMs on real events with prediction markets (forecasterarena.com)
- Show HN: Help validate startup ideas with synthetic customer interviews (market-echo.vercel.app)
- Show HN: LLMatcher – Find your perfect AI through blind voting (llmatcher.com)
- OpenAI GPT-5.2 Codex vs. Gemini 3 Pro vs. Opus 4.5: Coding comparison (www.tensorlake.ai)
- Gemini 3 Pro vs. GPT-5.1 Codex-Max vs. Claude Opus 4.5: AI Coding Benchmark (www.hansreinl.de)
- Show HN: Beads Viewer (Bv) (github.com)
- Show HN: I vibe-coded a DAW that lets you vibe-compose with Opus 4.5 (synthesizer-steel.vercel.app)
- Show HN: I created a 2025 Wrapped for WhatsApp Conversations (www.textunwrapped.com)
- Show HN: Roblox Python tower defense game (github.com)
- Show HN: Better Gmail Tabs – turn search queries into tabs for fast email load (chromewebstore.google.com)