Anthropic
Claude Opus 5.5
In two words
In the shared skills test this model scores 58 on the Intelligence Index (индекс на интелекта).
no data
Good for · Not so much for · Bulgarian · Safety and age.
Price
One test task with this model costs $5.98 (Cost per task (цена на задача)). Checked on 21 Oct 2026. Artificial Analysis.
Recent changes
21 Oct 2026 · Claude Opus 5.5
What it means for you
See the source (goes to another site)
More details
In the 21 Oct 2026 snapshot the Intelligence Index (индекс на интелекта) is 58 points, Cost per task (цена на задача) is 5.98 USD, Output speed (скорост на изход) is 95 tokens per second, and the LMArena text rating (Elo) is 1509.
Proven / not proven
The numbers are from Artificial Analysis and LMArena on the date below. We add nothing else.
More details
- In the shared skills test this model scores 58 on the Intelligence Index (индекс на интелекта). · variant: Claude Opus 5.5 (max with fallback) · Artificial Analysis (goes to another site) · 2026-10-21
- One test task with this model costs $5.98 (Cost per task (цена на задача)). · variant: Claude Opus 5.5 (max with fallback) · Artificial Analysis (goes to another site) · 2026-10-21
- In the test this model writes about 95 (Output speed (скорост на изход)). · variant: Claude Opus 5.5 (max with fallback) · Artificial Analysis (goes to another site) · 2026-10-21
- In the public human test this model has a score of 1509 (text Elo (текстов рейтинг)). · variant: Claude Opus 5.5 (High) · LMArena (goes to another site) · 2026-10-20