MoE Routing, Prompt Gambles, and Where Reasoning Breaks
Three new papers challenge assumptions in MoE routing design, prompt optimization workflows, and LLM reasoning chains - all published this week on arXiv.
Benchmarks
Web Agent Benchmarks Leaderboard: Apr 2026
Rankings across WebArena, WebVoyager, BrowseComp, Mind2Web, WorkArena, and WebChoreArena - every verified score for browser-driving AI agents as of April 2026.
Hallucination Benchmarks Leaderboard: April 2026
Rankings of the top AI models on factuality and hallucination benchmarks: TruthfulQA, SimpleQA, FACTS Grounding, Vectara HHEM, HaluEval, HalluLens, and AA-Omniscience as of April 2026.
GLM-5.1 Review: Open-Source Model Tops SWE-Bench Pro
Z.ai's GLM-5.1 is a 754B open-weight model that claims the top spot on SWE-Bench Pro without a single NVIDIA chip - here's how it holds up in practice.
Video Generation Benchmarks Leaderboard 2026
Rankings of AI video generation models across VBench, VBench-2.0, and the Artificial Analysis Video Arena Elo system, covering text-to-video and image-to-video performance.
Function Calling Benchmarks Leaderboard 2026
Rankings of top LLMs on function calling and tool use benchmarks including BFCL v3, tau-bench, ToolBench, and FinTrace as of April 2026.
Best AI Vector Databases 2026 - Full Comparison
A data-driven comparison of 12 vector databases for RAG and AI workloads, with verified pricing, benchmark numbers, and honest trade-off analysis.
Best Open-Source LLM Inference Servers 2026
A benchmark-driven comparison of the top open-source LLM inference servers - vLLM, SGLang, TGI, llama.cpp, TensorRT-LLM, LMDeploy, and more.
Vision-Language Benchmarks: Image Reasoning Ranked
Rankings of AI models on the key visual reasoning benchmarks - MMMU, MathVista, ChartQA, DocVQA, OCRBench, AI2D, CharXiv, and more - focused on image and document understanding.
RAG Benchmarks Leaderboard: Retrieval Rankings 2026
Rankings of the top embedding and RAG systems across BEIR, MTEB retrieval, MIRACL, MS MARCO, KILT, HotpotQA, and RAGTruth hallucination benchmarks as of April 2026.
Best AI Transcription Tools 2026: APIs and Services Ranked
A data-driven comparison of the top AI transcription APIs and services for 2026, covering WER accuracy, pricing per hour, speaker diarization, and output formats.
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.
