Best AI Models for Math Reasoning - April 2026
Gemini 3.1 Pro leads GPQA Diamond at 94.1% and HLE at 44.7% as AIME 2025 saturates; Claude Opus 4.7 and Kimi K2.6 join the top tier in April 2026.
Articles Tagged "Frontier Models"
GPT-5.4-Cyber
OpenAI's GPT-5.4-Cyber is a cyber-permissive fine-tune of GPT-5.4 Thinking with binary reverse engineering, 88.23% on professional CTFs, and access gated through the Trusted Access for Cyber program.
GPT-Rosalind
OpenAI's first domain-specific reasoning model for biology and drug discovery, launched April 16 2026 as a US-only research preview with a 0.751 BixBench score.
OpenAI Loses Three Execs as Sora Era Ends and IPO Nears
Kevin Weil, Bill Peebles, and Srinivas Narayanan all left OpenAI on the same day as the company dismantles its consumer moonshots and sharpens its focus on enterprise revenue ahead of a potential IPO.
OpenAI Releases GPT-Rosalind for Drug Discovery
OpenAI launched GPT-Rosalind on April 16, a frontier reasoning model for drug discovery that outranked human experts on RNA prediction and competes directly with Google DeepMind's AlphaFold.
Claude Mythos Preview
Claude Mythos Preview is Anthropic's most capable model - restricted to 50 orgs via Project Glasswing, with 93.9% on SWE-bench Verified and thousands of autonomous zero-day discoveries.
Novo Nordisk Bets Its Drug Pipeline on OpenAI
Novo Nordisk signs a sweeping AI partnership with OpenAI covering drug discovery, manufacturing, and supply chain - but the governance details are thin.
Stanford's AI Index 2026 - US Edge Over China Is Gone
Stanford HAI's 2026 AI Index finds the US-China model gap has effectively closed, GenAI has hit 53% global adoption faster than any prior technology, and young software developers are the first casualties of the labor shift.
New Yorker Casts Doubt on Sam Altman's Integrity
Ronan Farrow and Andrew Marantz spent 18 months investigating OpenAI's CEO. What they found is hard to dismiss.
OpenAI Backs Bill Shielding AI Labs From Mass-Harm Suits
OpenAI is backing an Illinois bill that would protect AI labs from lawsuits even when their models contribute to mass casualties or billion-dollar disasters.
Muse Spark Review: Strong on Health, Weak on Code
Meta's first proprietary frontier model leads on HealthBench Hard and scientific reasoning but trails rivals in coding and agentic tasks - with no public API yet.
Muse Spark
Meta's first closed-source frontier model scores 52 on the Artificial Analysis Intelligence Index, leads on HealthBench Hard, and ships free at meta.ai - but has no public API yet.
