Z.AI's open-weight GLM-5.2 model outperforms GPT-5.5 on the SWE-bench Pro coding benchmark, scoring 62.1 versus 58.6, while costing $1.40 per million input tokens compared to GPT-5.5's $8.00. Released…
Anthropic's Claude Opus 4.5 and Zhipu AI's GLM-5.2 are frontier reasoning models competing on cost, context length, and coding benchmarks. GLM-5.2 offers a 1M-token context window and leads by 20.3 po…
OpenAI abandoned SWE-bench Verified on February 23, 2026, after finding 59.4% of its hardest failed tests were broken and training data contamination inflated scores. Its replacement, SWE-bench Pro fr…
Z.ai's MIT-licensed GLM-5.2 model challenges OpenAI's GPT-5.5 with a 28% hallucination rate on the AA-Omniscience benchmark, three times lower than GPT-5.5's 86%, while costing 1/7th the inference pri…
Zhipu AI released GLM-5.2, an open-source large language model with a 1M-token context designed for long-horizon coding tasks. The model introduces IndexShare to reduce computational costs and achieve…
Xiaomi released MiMo Code V0.1, an open-source AI coding agent, on June 11 under an MIT license, achieving an 86.7% score on Terminal-Bench 2.0 compared to Claude Code's 65.4% on tasks exceeding 200 s…
Anthropic released Claude Opus 4.8 on Tuesday, pricing the new model at $5 per million input tokens and $25 per million output tokens — the same as its predecessor. The company claims the model is its…
Major developments in AI development tools as of April and May 2026, highlighting Cursor 3.0's shift to a multi-agent workspace, Anthropic's Claude Code achieving 87.6% on SWE-bench Verified, and Wind…