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.
James Kowalski
AI Benchmarks & Tools Analyst
James is a software engineer turned tech writer who spent six years building backend systems at a fintech startup in Chicago before pivoting to full-time analysis of AI tools and infrastructure. His engineering background means he doesn't just read the spec sheet - he runs the benchmarks, profiles the latency, and checks whether the marketing claims hold up under real workloads.
He studied Computer Science at the University of Illinois at Urbana-Champaign, where he first got hooked on natural language processing during a senior research project on sentiment analysis. He later completed a certificate in data journalism from Northwestern's Medill School.
At Awesome Agents, James owns the leaderboards and tool comparison coverage. He maintains the site's benchmark tracking methodology and is the person who actually runs the numbers before publishing any ranking. He is also an open-source advocate and contributes to several projects in the LLM inference space.
Based in Chicago, IL.
Articles by James Kowalski
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.
Best AI Browser Agents 2026: Top Picks Compared
A hands-on comparison of the best AI browser agents in 2026 - Perplexity Comet, Dia, Opera Neon, Chrome Gemini, Brave Leo, Fellou, and more - rated on agentic task depth, privacy, price, and platform support.
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.
Arcee Trinity
Arcee Trinity-Large-Thinking is a 400B sparse MoE open-source reasoning model that ranks #2 on PinchBench at $0.85/M output tokens, 28x cheaper than Claude Opus 4.6.
Qwen 3.6-35B-A3B
Alibaba's 35B sparse MoE with 3B active parameters delivers 73.4% SWE-bench Verified, multimodal vision and video, 256K context, and DeltaNet hybrid architecture under Apache 2.0.
Claude Opus 4.7
Anthropic's latest flagship model ships with 3x higher resolution vision, a new xhigh effort level, task budgets for cost control, cyber safeguards, and 13% better coding performance at the same $5/$25 pricing.
Best AI Models for Image Generation - April 2026
GPT Image 1.5 leads Artificial Analysis at 1278 Elo while Nano Banana 2 tops Arena.ai - two leaderboards, two answers, and five new models that reshaped the rankings since March.
Best AI Test Generation Tools 2026 - 5 Compared
A hands-on comparison of the top AI unit test generation tools in 2026, covering Qodo Gen, GitHub Copilot, Diffblue Cover, Keploy, and Tusk.
