Anthropic’s newly released Claude Sonnet 5 scores 53 on the Artificial Analysis intelligence index, surpassing Sonnet 4.6 and matching GPT‑5.5, but its per‑task cost rises to $2.29—15 % higher than Opus 4.8—due to roughly 40 % more output tokens and increased agentic interaction rounds.
DeepSeek V4 introduces a suite of architectural breakthroughs—including mixed‑expert MoE, manifold‑constrained hyper‑connections, CSA/HCA hybrid attention, and FP4 quantization—that slash inference cost by up to tenfold while delivering million‑token context, competitive benchmarks, dual model variants, and a disruptive pricing strategy.
On the day GPT‑5.5 launched, DeepSeek‑V4 followed, and a series of head‑to‑head tests—including a logic puzzle, an IMO math problem, HTML generation, game‑engine coding, token‑efficiency measurement, and a network‑security challenge—showed GPT‑5.5 generally leading while DeepSeek demonstrated notable strengths and cost advantages.
GLM‑4.7‑Flash, released by Zhipu AI on Jan 20 2026, uses a Mixture‑of‑Experts (MoE) backbone and a Multi‑Latent Attention (MLA) mechanism to achieve near‑70B model quality with just 30 B total and 3 B active parameters, running on a single 24 GB GPU or even a Mac, while remaining fully open‑source and free to use.
Zhipu's newly released GLM-4.7 model outperforms GPT-5 and Claude Sonnet 4.5 on multiple coding benchmarks, introduces Vibe Coding for UI generation, offers Interleaved and Preserved Thinking capabilities, is fully open‑source, and costs only one‑seventh of competing services.
