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GLM-4.7: Z-AI's Stable Reasoning Flagship Joins Chat-O's Balanced Tier

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GLM-4.7 from Z-AI is now available on Chat-O. Released on December 22, 2025, GLM-4.7 was Z-AI’s flagship before the GLM-5 generation arrived, and it remains one of the most dependable mid-tier reasoning models available anywhere. We are bringing it to the Balanced tier because stability matters more than novelty for most daily work.

Why an Older Flagship Still Deserves Your Attention

Newer is not always better for production workloads. GLM-4.7 has been battle-tested for five months across millions of real-world sessions. Its failure modes are well understood, its output style is predictable, and its cost per token is significantly lower than the GLM-5 family.

Specification GLM-4.7 GLM-5
Release Date December 22, 2025 February 11, 2026
Context Window 202,752 tokens 204,800 tokens
Modality Text Text
Reasoning Stability Excellent Very Good
Programming Ability Enhanced (flagship-tier) Stronger
Tier on Chat-O Balanced Balanced + Power
Relative Cost Lower Higher

The Two Upgrades That Define GLM-4.7

Z-AI concentrated GLM-4.7’s development on two areas, and both directly benefit professional users.

Enhanced Programming Capabilities

GLM-4.7 produces code with fewer syntax errors and better adherence to project conventions than its predecessors. In our internal testing across 200 real GitHub issues, GLM-4.7 produced mergeable pull request drafts 78 percent of the time without human correction, compared to 61 percent for GLM-4.6.

More Stable Multi-Step Reasoning

Multi-step reasoning is where models most often derail. GLM-4.7 maintains its chain of logic across longer prompts and multi-turn conversations with noticeably fewer contradictions. Z-AI describes this as “more stable multi-step reasoning and execution,” and our testing confirms the claim: across 50 multi-step math and logic problems, GLM-4.7 contradicted itself only twice, compared to nine times for GLM-4.6.

Where GLM-4.7 Fits in Your Workflow

Your Task Recommended Model Why
Daily coding questions GLM-4.7 Stable, affordable, reliable
Quick snippets at high volume GLM-5 Turbo Light tier speed
Multi-file refactoring GLM-5.1 Long-horizon coding focus
1M token agent workflows GLM-5.2 Massive context window
Multimodal tasks Kimi K2.6 Image + text support

Real World Test: A Week as Our Default Model

We set GLM-4.7 as the default model for our internal team for one week. Across 340 conversations covering code review, documentation drafting, SQL query writing, and architectural discussions:

  • Zero sessions required switching models due to quality failures
  • Average response time was 1.8 seconds for typical prompts
  • Code acceptance rate (code merged without modification) was 71 percent
  • Credit consumption was 43 percent lower than the equivalent GLM-5 Power week

The conclusion: for the 80 percent of AI work that is routine, GLM-4.7 delivers flagship reliability at Balanced pricing.

A Note on the GLM Family Tree

GLM-4.7 is the last of the GLM-4 generation and the bridge to GLM-5. Understanding where it sits helps you pick the right model:

  1. GLM-4.7 (this model): Stability and value. The sensible daily driver.
  2. GLM-5: The versatile workhorse. Available in Balanced and Power.
  3. GLM-5 Turbo: Speed specialist. Light tier.
  4. GLM-5.1: Long-horizon coding. Power tier.
  5. GLM-5.2: 1M context flagship. Balanced and Power.

Availability

GLM-4.7 is live now in the Balanced tier on Chat-O. Select it from the model dropdown in any chat. If you have been paying Power tier prices for work that does not require frontier reasoning, GLM-4.7 will cut your credit consumption roughly in half while maintaining professional-grade output.

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