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GLM-5.2 vs Grok 4.3 — Price, Context, and Capability Compared

Verdict

GLM-5.2 costs 1.4× more per blended million tokens than Grok 4.3. GLM-5.2 has the larger context window (1,000,000 tokens). Default to Grok 4.3 unless you specifically need GLM-5.2's edge.

Spec comparison

GLM-5.2Grok 4.3
Price (input)$1.40/M$1.25/M
Price (output)$4.40/M$2.50/M
Blended price$2.15/M$1.56/M
Context window1,000,000 tokens1,000,000 tokens
Max output64,000 tokens64,000 tokens
Modalitiestexttext, vision
Reasoning modeYesYes
Released2026-052026-06
SpeedNot measured98 t/s

Cost at scale (3:1 blended)

Tokens / monthGLM-5.2Grok 4.3Delta
1,000,000$2.15$1.56$0.59 (1.4×)
10,000,000$21.50$15.63$5.88 (1.4×)
100,000,000$215.00$156.25$58.75 (1.4×)

Choose GLM-5.2 if…

  • Open-weights coding-first flagship
  • 1M-token context window
  • Beats larger frontier models on long-horizon coding
  • Long-horizon coding on open weights at a fraction of frontier pricing.

Choose Grok 4.3 if…

  • xAI’s general-purpose flagship
  • Extremely fast for its size
  • 1M-token context
  • General-purpose work where speed and a huge context window both matter.

Run this exact matchup right now

Send the same prompt to GLM-5.2 and Grok 4.3 side by side and see the outputs yourself.

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FAQ

Is GLM-5.2 cheaper than Grok 4.3?

Grok 4.3 is cheaper, at $1.56 per million blended tokens vs $2.15 for GLM-5.2.

Which has the bigger context window, GLM-5.2 or Grok 4.3?

Both models support 1,000,000 tokens of context.

Can GLM-5.2 replace Grok 4.3 for coding?

Both are viable for coding. Open-weights coding-first flagship (GLM-5.2) vs xAI’s general-purpose flagship (Grok 4.3) — pick based on which strength matters more for your workload.

Related

GLM-5.2 pricingGrok 4.3 pricingvs Claude Opus 4.8vs Gemini 3.1 Provs GLM-5.1vs GPT-5.6 TerraPremium model tests

Pricing verified 2026-05-19. Specs verified 2026-08-08.