Haider: Opus 5.5 vs Astra on SWE tasks — Astra has a higher floor, reasoning in a tier of its own
haider1 · x · 2026-10-16
haider1 shares hands-on observations comparing Opus 5.5 and Astra (unreleased, unverified) on SWE tasks:
- They differ markedly: Astra has a much higher floor, while Opus occasionally spikes with a higher ceiling
- Astra's reasoning is "in a tier of its own" — you can throw almost anything at it, even problem types it hasn't seen, and it figures things out
Note: model names are not officially confirmed; treat as credible insider impressions.
More from Models
- Google's "ungrounded beliefs" classifier injections derail Opus 4.1's reasoning chain — liminal_bardo · 2026-10-16
- A week of ChatGPT Pro quota burned in 36 hours as GPT-6 fails to factor a 512-bit RSA key — matthew_d_green · 2026-10-16
- Gemini 4 Argon hits 29/36 proven DFIR verdicts, best in 22-model security benchmark — DynamicWebPaige · 2026-10-16
- Same debate, with chart: can harnesses sustain AI progress past the plateau? — Otherwise-Report1848 · 2026-10-16
- Mistral touts STEM benchmark win, but leaderboard shows it ranking sixth overall — MistralAI · 2026-10-16
- Local tool calling compared: how Gemma 4, Llama 3 and Mistral differ — leslysandra · 2026-10-16