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Balanced — strong quality at a mid priceOpen Weights
GLM 5.3 Pricing
Z.ai · z-ai-glm-5-3
Input / 1M tokens
$0.079
Output / 1M tokens
$1.40
Context window
1,048,576 tokens
≈ 1,398 pages of text
Max output
943,718 tokens
What it costs in practice
Typical request (1,200 in + 400 out tokens)$0.0007
1,000 requests / month$0.6548/mo10,000 requests / month$6.55/mo100,000 requests / month$65.48/moEstimate your own workloadOpens the calculator with GLM 5.3 preloaded — adjust volume and token counts there.
Price history
List price per 1M tokens since we started tracking in Aug 2026. Each step marks a price change — hover a point for the exact date and rate.
What it excels at
Supports 1M-token context and 128k output for long-document and multi-turn tasks. Low input pricing suits high-volume inference workloads.
The business tradeoff
Output token cost is elevated relative to input. Open-weights deployment introduces hosting variance and smaller ecosystem tooling.
Cheaper from Z.ai
Head-to-head
Vendor list rates, as of Oct 25, 2026 · source: openrouter · per-request examples assume 1,200 input + 400 output tokens.