Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token...
Tested on 16 benchmarks with 61.4% average. Top scores: Chatbot Arena Elo — Coding (1542.3%), Chatbot Arena Elo — Overall (1477.8%), OTIS Mock AIME 2024-2025 (98.3%).
MiMo-V2-Flash scores 81.7 (99% as good) at $0.09/1M input · 98% cheaper
Unusual and adversarial machine learning challenges. Tests robustness of reasoning about edge cases in ML systems.
Abstraction and Reasoning Corpus. Tests fluid intelligence through novel visual pattern recognition puzzles. Core measure of general intelligence.
ARC-AGI 2, harder sequel to ARC. More complex abstract reasoning patterns that test generalization ability beyond training data.
Deceptively simple questions that humans find easy but AI models often get wrong. Tests common sense and reasoning gaps.
Mock AIME (American Invitational Mathematics Exam) problems from OTIS. Tests mathematical competition performance.
- Typemultimodal
- Context1.0M tokens (~500 books)
- ReleasedMay 2026
- LicenseProprietary
- StatusActive
- Cost / Message~$0.035