02GPT-5.5 (OpenAI) - April 23, 2026 [AI Models & Research]Codename: "Spud" Release Status: Shipped April 23, 2026 (fully retrained base model, first since GPT-4.5) Key Benchmarks: Terminal Bench 2.0: 82.7% citation:OpenAI Releases GPT-5.5 → source
03DeepSeek V4 (April 24, 2026) [AI Models & Research]Two variants released under MIT license with full open weights: → source
04Claude Opus 4.7 (Anthropic) - April 16, 2026 [AI Models & Research]Key Benchmarks: SWE-bench Verified: 87.6% (up from 80.8% on Opus 4.6) citation:Claude Opus 4.7—Better but also disappointing SWE-bench Pro: 64.3% (nearly 10 points above Opus 4.6) citation:Dev Weekly Apr 13-19, 2026 → source
05Gemini 3.1 Pro (Google) [AI Models & Research]Status: Active in April 2026 Benchmark Performance: Tier A in AkitaOnRails coding benchmark (moved up) citation:LLM Coding Benchmark Multilingual: Leads on multilingual tasks at ~2.5x lower price than Opus 4.7 citation:Claude Opus 4.7—Better but also disappointing → source
06GLM-5.1 (Zhipu AI) [AI Models & Research]Architecture: 744B MoE (40B active) License: MIT Context: 200K tokens Benchmark Shift: Dropped to Tier C in AkitaOnRails April 24 re-audit (previously higher) citation:LLM Coding Benchmark → source
07Kimi K2.6 (Moonshot AI) [AI Models & Research]Status: Moved to Tier A in AkitaOnRails April 24 re-audit citation:LLM Coding Benchmark Performance: Strong in coding and reasoning benchmarks → source
12Multi-Model Routing Era [AI Models & Research]April 2026 marked the end of single-model commitment Developers now build model-agnostic AI agents that route intelligently across models based on task requirements AI.cc platform aggregates 300+ models through unified API for intelligent routing citation:From GPT-5.5 to DeepSeek → source
14Reasoning-First Architecture [AI Models & Research]2026 defined by agents requiring multi-step planning, logic verification, and internal deliberation loops MoE (Mixture of Experts) standard for high-end reasoning Extended context windows (128K–1M+ tokens) standard for agentic workflows
15Geopolitical Shift [AI Models & Research]DeepSeek V4 trained on Huawei Ascend (no Nvidia) validates Jensen Huang's "horrible outcome" warning Open-source frontier models now competitive with proprietary at fraction of cost
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