GLM Coding Plan (Z.ai)
$18 / $80 / $168 per mo (Lite / Pro / Max; quarterly/yearly discounts)
Models: GLM only (GLM-5.3 flagship + GLM-5.3 Flash)
What "flat" means: Fixed price with dual-window credit quotas: 2,000 / 12,000 / 28,000 credits per 5 hours and 10,000 / 60,000 / 140,000 per week (Lite/Pro/Max).
The catch: Credits, not prompt counts, and weekdays 14:00 to 18:00 Singapore time burn them at full rate (other hours at half), so capacity is less legible than a request cap. GLM models only, and only inside supported coding tools: no general API calls.
Pick GLM Coding Plan (Z.ai) when
+GLM-5.3-class quality covers your coding work
+You want a cheap flat plan and your volume fits the credit windows
+You work in a supported tool (Claude Code, Codex, OpenCode, Cline, Kilo Code, Roo Code, Cursor) through its OpenAI- or Anthropic-compatible endpoint
OpenCode Go
$10/mo (Go Plus $40/mo)
Models: 31 models, mostly open-weight (DeepSeek V4.1 Flash, Qwen3.8, GLM-5.3, Kimi K3, MiniMax M3) plus Grok, GPT-6 Luna and Claude Haiku 5.5
What "flat" means: Fixed price with a monthly dollar limit that varies by model (on Go: $15 of GLM-5.3 or Kimi K3, $60 of MiniMax M3, $80 of DeepSeek V4.1 Flash), metered at model token rates.
The catch: Tight windows on every model: 20% of the monthly limit per 5 hours and 50% per week (a $60 model caps at $12 per 5 hours and $30 per week). Premium models such as Kimi K3, Claude Haiku 5.5 and GPT-6 Luna get only $15 a month on Go. Single-member workspaces only, and traffic must look like a coding agent.
Pick OpenCode Go when
+You run mostly open-weight models and want the cheapest entry price ($10/mo)
+Your usage fits inside $30/week (moderate, not always-on)
+You want a plan built by OpenCode that also works with Hermes and OpenClaw