Model Comparison 2026

GLM 4.7 vs GPT-5.6 Terra

GLM 4.7
Z.AI · Balanced · Open weights
$0.81/1M · 203K ctx
GPT-5.6 Terra
OpenAI · Balanced · Proprietary
$6.25/1M · 1.1M ctx

Community Vote

Pick a winner in each dimension — change your vote anytime.

Output Quality
Correctness and depth of what it produces
Agentic Ability
Tool calls, instruction-following, and multi-step tasks
Speed
Tokens per second and time-to-first-token
Value for $
How much capability you get per dollar
Reliability
Consistent results — fewer refusals, loops, and format breaks

Specs & Pricing, Side by Side

Spec
GLM 4.7
Terra
Maker
Z.AI
OpenAI
Blended price / 1M
$0.81
$6.25
Input / output
$0.40 in · $1.75 out / 1M tokens
$2.50 in · $15 out / 1M tokens
Context window
203K
1.1M
Open weights
Yes
No
Tool use
Yes
Yes
Reasoning
Yes
Yes
Output Quality
8.0
9.0
Agentic Ability
8.2
9.0
Speed
8.0
8.4
Value for $
8.9
8.8
Reliability
8.6
9.2

Pricing and capabilities synced from the OpenRouter catalogue. Scores are editorial (0–10).

Verdict: GLM 4.7 or Terra?

Updated 2026-07-17

Choose GLM 4.7 if you want gLM users wanting a small step up from 4.6. Choose GPT-5.6 Terra if you want the everyday OpenAI default for agents — volume work with frontier-adjacent quality.

In our editorial scoring, GPT-5.6 Terra leads in 4 of five dimensions (output quality, agentic ability, speed and reliability), while GLM 4.7 leads in 1. On price, GLM 4.7 runs about $0.81 per 1M tokens (blended) and is open-weight; GPT-5.6 Terra is about $6.25 and proprietary.

Where GLM 4.7 falls short
  • Incremental over 4.6
  • 202K context
Full GLM 4.7 breakdown →
Where Terra falls short
  • Steps behind Sol on the hardest tasks
  • Very new — long-run agent behavior still being characterized
Full Terra breakdown →

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