CtrlAltDebrief

GLM 5.2 vs Grok 4.3

API pricing, context window and capabilities for GLM 5.2 and Grok 4.3, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.

Verdict

computed from the published numbers

GLM 5.2 wins on price, on Terminal-Bench and on intelligence.

Price
GLM 5.2
Terminal-Bench
GLM 5.2
Intelligence
GLM 5.2
Context window
Tied

Key takeaways

who wins on what, from the published numbers

GLM 5.2 wins

  • Cheaper input ($0.05 vs $1.25 /1M)
  • Cheaper output ($1.98 vs $2.50 /1M)
  • More serving providers (20 vs 6)

Grok 4.3 wins

  • Has web search
Cheaper overall
GLM 5.2
$0.05 + $1.98 /1M
Larger context
Tied
More providers
GLM 5.2
20 providers

Pricing & specs

cheapest listed route · per 1M tokens
On-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments can be materially lower. An OpenRouter routed quote is the price of whichever upstream provider OpenRouter prefers today, so it moves day to day.
GLM 5.2Grok 4.3
Input $/1M$0.05OpenRouter routed quote best$1.25via xAI
Output $/1M$1.98via Scx AI best$2.50via xAI
Context window1M 1M
Max output1M 1M
Serving providers20 best6
DateReleased Jun 13, 2026 Released Apr 18, 2026

Benchmarks

Benchmark scores, side by side
GLM 5.2Grok 4.3
Intelligence33.7 best24.9
Terminal-Bench78% best40%
GPQA Diamond89% 90% best
Output speed83 t/s 113 t/s best
Latency (TTFT)2.97s best27.23s

Cost calculator

choose a serving route for each side
Input tokens / month
Output tokens / month
GLM 5.2
via OpenRouter
$7.25
Grok 4.3
via OpenRouter
$8.75

Capabilities

feature support, side by side
FeatureGLM 5.2Grok 4.3
Vision✓✓
Tool use✓✓
Reasoning✓✓
Audio——
Prompt caching✓✓
Structured output✓✓
Web search—✓

Related comparisons

Frequently asked questions

Which is cheaper, GLM 5.2 or Grok 4.3?
GLM 5.2 is cheaper for input ($0.05 vs $1.25 per 1M tokens) as an OpenRouter routed quote. GLM 5.2 is cheaper for output ($1.98 vs $2.50 per 1M tokens) from Scx AI.
What is the context window difference between GLM 5.2 and Grok 4.3?
Both GLM 5.2 and Grok 4.3 have about a 1M-token context window.
How do GLM 5.2 and Grok 4.3 compare on benchmarks?
On the tracked benchmarks, GLM 5.2 leads on Terminal-Bench, and GLM 5.2 leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026

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