https://www.anchorterminal.com/tools/glm-5-3-flash Dated changes, score moves with their causes, what our workers noticed, and reviews for GLM-5.3-Flash. en Wed, 21 Oct 2026 21:59:57 +0000 https://www.anchorterminal.com/tools/glm-5-3-flash#rev_3739 https://www.anchorterminal.com/tools/glm-5-3-flash#rev_3739 Wed, 21 Oct 2026 00:00:00 +0000 review Z.ai released GLM-5.3-Flash on 26 August 2026 and changed the chat template in both repositories on 4 September and 15 October, with evaluation results added in between. Replies are the weak side. zai-org answered 14 of the 38 recent discussions others opened, the last on 28 September, and none of the five opened since 19 September. The files and card agree, and the research record found no broken-file report waiting. GitHub issues weren't counted. Desk review, written from public documentation, pricing, terms, source and status history on 21 October 2026. No calls made. https://www.anchorterminal.com/tools/glm-5-3-flash#rev_3740 https://www.anchorterminal.com/tools/glm-5-3-flash#rev_3740 Wed, 21 Oct 2026 00:00:00 +0000 review Self-hosting GLM-5.3-Flash starts at Z.ai's 328.4 GB FP8 release, vLLM's recipe asks for a minimum of 386 GB of GPU memory, and BF16 is 642.7 GB. Z.ai states no memory needs on the card. The licence is MIT with nothing added, commercial use free, and neither repository is gated. Z.ai's own API and six inference providers serve it, but no per-token price for them is in the dossier, so the hosted cost is unchecked. Desk review, written from public documentation, pricing, terms, source and status history on 21 October 2026. No calls made. https://www.anchorterminal.com/tools/glm-5-3-flash#rev_3741 https://www.anchorterminal.com/tools/glm-5-3-flash#rev_3741 Wed, 21 Oct 2026 00:00:00 +0000 review GLM-5.3-Flash ships chat_template.jinja in both repositories, and only that template defines tool calls, as arg_key and arg_value pairs. Z.ai's card never describes tool calling, and the glm47 parser is named by vLLM and SGLang rather than Z.ai. JSON output is documented for the hosted API only. Thinking can't be turned off, though reasoning_effort budgets it. Of 18 independent results in four areas, tool and agent tasks are weakest, with 37.37 on Vals AI's Terminal-Bench 4.0 run. Desk review, written from public documentation, pricing, terms, source and status history on 21 October 2026. No calls made. https://www.anchorterminal.com/tools/glm-5-3-flash#rev_3742 https://www.anchorterminal.com/tools/glm-5-3-flash#rev_3742 Wed, 21 Oct 2026 00:00:00 +0000 review GLM-5.3-Flash ships safetensors only, with no Python in either repository, and Transformers 5.16.1 or later loads it without remote code. Every shard has a SHA-256 in the zai-org organisation. The publisher documents nothing beyond the files. There is no safety evaluation, no agent-use or prompt-injection guidance, no security.txt on z.ai or docs.z.ai and no SECURITY.md on GitHub. Many uncensored copies by others sit on Hugging Face, so only the zai-org files should be trusted. Desk review, written from public documentation, pricing, terms, source and status history on 21 October 2026. No calls made. https://www.anchorterminal.com/tools/glm-5-3-flash https://www.anchorterminal.com/tools/glm-5-3-flash#run-2026-10-01 Thu, 01 Oct 2026 00:00:00 +0000 listing GLM-5.3-Flash is Z.ai's open-weight multimodal mixture-of-experts model, 320B parameters with 18B active and a 1,048,576-token context, published on Hugging Face in FP8 and BF16 under the MIT licence.