EarlyTerms

GLM-5.1

Validating · Emerged · 81 days old · Last reviewed

GLM-5.1 is Z.ai's 754-billion-parameter open-weight large language model, purpose-built for agentic engineering and long-horizon coding tasks. It is a post-training upgrade to GLM-5 sharing the same Mixture-of-Experts Dynamic Sparse Architecture, released under the permissive MIT license.

Z.ai (formerly Zhipu AI, a Tsinghua University spinoff) shipped the API on March 27, 2026, then released open-source weights on April 7, 2026, claiming the #1 spot on SWE-Bench Pro at 58.4%, narrowly ahead of GPT-5.4 (57.7%) and Claude Opus 4.6 (57.3%). It was trained on 100,000 Huawei Ascend 910B chips.

Think of it as a coding contractor who bills hourly but works autonomously for an eight-hour shift.

Search Interest

peak ~2.6K/mo
updated 2026-06-12
~2.6K/mo ~1.3K/mo 0
2026-05-14 2026-05-29 2026-06-12
Term Lifecycle
  1. Nascent
    0–7 days
  2. Emergent
    8–30 days
  3. Validating ← now
    31–90 days
  4. Rising
    91–180 days
  5. Established
    180 days +

Why is it emerging now?

TL;DR

GLM-5.1 became the first open-source model to top SWE-Bench Pro on April 7, 2026, doing so on Huawei hardware with no NVIDIA chips — a geopolitical proof-of-concept as much as a benchmark win. Developers are integrating it into coding agents at a fraction of Claude Opus pricing.

5 forces driving coverage — scroll →
Z.ai
GLM-5.1: Towards Long-Horizon Tasks
SWE-Bench Pro 58.4%; sustains 8-hour autonomous coding sessions across hundreds of iterations and thousands of tool calls.
Apr 7, 2026
Y Hacker News
GLM-5.1: Towards Long-Horizon Tasks
Apr 7, 2026 618 points · 263 comments
VentureBeat
AI joins the 8-hour work day as GLM ships 5.1 open source LLM
First open-source model to top SWE-Bench Pro; API priced at $1.40/$4.40 per million tokens vs Claude's $5/$25.
Apr 7, 2026
Awesome Agents
GLM-5.1 Tops SWE-Bench Pro With Zero NVIDIA Hardware
Trained on 100,000 Huawei Ascend 910B chips; Z.ai on US Entity List since Jan 2025 with no legal NVIDIA access.
Apr 7, 2026
Remio.ai
The GLM Coding Plan Went Viral in North America: Then the Price Doubled
International Lite plan jumped from $10 to $18/month on Apr 11; domestic Chinese users pay $7 for the same tier.
Apr 2026

Outlook

6-month signal projection and commercial timeline.

Signal medium
Revenue strong

Strong coding benchmark lead plus MIT license drives adoption, but pricing controversy and context-degradation reports may cap mindshare.

Risk · GLM-5.2 or Qwen-successor could displace it within 90 days as the benchmark leader.

Analogs · DeepSeek V3 · Qwen 3 · Mixtral

Monetization timeline
  1. now
    Benchmark SEO + API pricing

    GLM-5.1 vs Claude pricing articles and migration guides rank immediately.

  2. 3-6mo
    Coding-agent tooling

    Integrations, wrappers, and cost-optimization layers for GLM-5.1 API build audiences.

  3. 6-12mo
    Open-weight derivative market

    Fine-tunes and quantized variants on MIT license enable commercial deployment products.

Competition & Opportunity for term “GLM-5.1”

Three heuristic signals derived from the tracked queries, the term's monetization cards, and its cluster neighbors. Directional, not audited.

Content Gap
10 queries tracked
Led by General (6), Cost breakdown (2)
10 Suggest-only tails — long-tail opening
Revenue Potential
40% commercial-intent queries
2 monetization angles mapped
Strong buyer signal — "pricing", "vs", "best" dominate
Build Difficulty
Medium
Stage: validating — incumbents warming up
10 / 13 default TLDs taken · oldest incumbent glm.com (1995-11-22)
7 related terms already published
Heuristic · signals: tracked queries, term monetization cards, cluster neighbors

Ideas for term “GLM-5.1”

Buildable pitches — turn this term into an article, site, product, post, newsletter, video, or course. Steal any card and run with it.

Article
GLM-5.1 vs Claude Opus 4.6: Which coding agent wins in practice?

High-search intent. Benchmark gap is real but narrow; practical tradeoffs (context degradation, speed, pricing) are underreported. 40-50 words of concise comparison convert well.

Article
GLM-5.1 pricing breakdown: API vs Coding Plan vs local deployment

Autocomplete shows 'pricing' as top tail query. Three-option comparison (cloud API at $1.40/$4.40, Coding Plan, self-host via SGLang/vLLM) covers every reader intent.

Article
How to run GLM-5.1 locally with SGLang or KTransformers

MIT license plus 754B via Unsloth IQ4 quantization (361 GB) = niche but passionate audience. HuggingFace search volume is an autocomplete signal.

Product
GLM-5.1 Coding Plan price monitor

Z.ai has changed pricing twice in 45 days. A lightweight alert service tracking plan price changes has clear demand from the community backlash thread.

Product
Context-window health checker for GLM-5.1 agentic sessions

HN thread surfaces a clear pain: model degrades past 100k tokens. A session monitor that warns before coherence breaks solves a named problem for paying users.

Video
GLM-5.1 8-hour coding session: I let it run overnight — here's what it built

The '8-hour autonomous coding' claim is high-shareable. A real screen-record of an overnight agentic run — win or fail — is a YouTube thumbnail waiting to happen.

Post Newsletter / LinkedIn / Tech media
The Model That Proved US Export Controls Failed

GLM-5.1 tops SWE-Bench Pro with zero NVIDIA silicon — trained on 100,000 Huawei chips after Z.ai landed on the US Entity List.

Post HN / r/localllama / developer blogs
I Paid $3/Month for GLM. Then $18. Here's Whether It Was Still Worth It.

Z.ai hiked international Coding Plan prices 6x in 60 days. Is the model good enough to justify it — or is this the 'passport tax' in action?

Post YouTube / TikTok / Twitter/X
GLM-5.1 Went Insane After 100k Tokens. Here's the Video.

Multiple developers report coherence collapse after the 100k-token mark. The model that promises 8-hour sessions has a known cliff — and nobody is making the clip.

What People Search

Long-tail queries from Google Suggest + Trends. Volume and competition are heuristics — directional, not audited. Content Type comes from query shape.

Keyword
Competition
Content Type
glm-5.1
Low
General
glm-5.1 benchmark
Low
General
glm-5.1 huggingface
Low
General
glm-5.1 pricing
Low
Cost breakdown
glm-5.1 vs glm-5-turbo
Low
Comparison
glm-5.1 ollama
Low
General
glm-5.1 coding plan
Low
Cost breakdown
glm-5.1 open source
Low
General
1–8 of 10
1 / 2
Updated 2026-06-12 · sources: Google Trends, Google Suggest · Competition is heuristic

SERP of term “GLM-5.1”

What searchers see today — organic results on top, paid ads if anyone's bidding. Ad density is a real-time commercial signal.

FAQ

What is GLM-5.1?

GLM-5.1 is Z.ai's 754-billion-parameter open-weight large language model, purpose-built for agentic engineering and long-horizon coding tasks.

Why is GLM-5.1 emerging now?

GLM-5.1 became the first open-source model to top SWE-Bench Pro on April 7, 2026, doing so on Huawei hardware with no NVIDIA chips — a geopolitical proof-of-concept as much as a benchmark win. Developers are integrating it into coding agents at a fraction of Claude Opus pricing.

When did GLM-5.1 emerge?

Publicly emerged around 2026-03-27 (about 81 days ago as of 2026-06-16). EarlyTerms first recorded a pipeline signal on 2026-04-23.

Related Terms

Other terms in the same space — aliases, subtypes, competitors, and neighbors to explore next.

Explore next
Also mentioned
  • Part of GLM-5
  • Competitor DeepSeek V3
  • Related Z.ai·vibe-coding·SWE-Bench Pro

Sources

Primary URLs this report cites — open any to verify the claim yourself.

  1. 01 Z.ai official blog: GLM-5.1 Towards Long-Horizon Tasks z.ai ↗
  2. 02 Hugging Face model card — zai-org/GLM-5.1 huggingface.co ↗
  3. 03 VentureBeat: AI joins the 8-hour work day as GLM ships 5.1 venturebeat.com ↗
  4. 04 The Decoder: GLM-5.1 can rethink its own coding strategy the-decoder.com ↗
  5. 05 Hacker News discussion (618 pts) news.ycombinator.com ↗
  6. 06 Remio.ai: GLM Coding Plan went viral, then price doubled remio.ai ↗
  7. 07 Awesome Agents: GLM-5.1 Tops SWE-Bench With Zero NVIDIA Hardware awesomeagents.ai ↗