GLM-5.1 (Reasoning)+1 tiers

Name: GLM-5.1 (Reasoning)
Brand: Z AI

GLM-5.1 (Reasoning) is developed by Z AI, released 2026-04-07.

Also written as: GLM 5.1 (Reasoning)

Reasoning-effort tiers merged. This page shows the highest-intelligence tier. It merges 2 tiers of the same model: GLM-5.1 (Reasoning), GLM-5.1 (Non-reasoning).

Input price

$1.285 / 1M tok

Output price

$4.07 / 1M tok

Blended price

$1.981 / 1M tok

Intelligence

26.1

84th percentile of 554 models with an Intelligence score

Coding

55.8

71st percentile of 194 models with a Coding score

Math

—

Speed

—

Time to first token

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Third-party resale listings

Captured 2026-10-20 from the reseller marketplace subrouter.ai's public pricing list. These are third-party resale prices, not Z AI's official price. Many resellers use shared/subscription access or reverse-engineered integrations — availability and quality are not verified by this site. Prices are USD per 1M tokens. Reseller names are the marketplace's own listing IDs, not company names — none of them is Z AI or any other model developer.

6 resellers passed our sanity checks against Z AI's official price; cheapest trusted price $0.2033/1M blended.

Reseller (marketplace ID)	Input $/1M	Output $/1M	Blended $/1M	vs. official
a6aa	0.0809	0.2542	0.1242	6%
ITKK	0.1324	0.416	0.2033	10%
Kriora	0.14	0.44	0.215	11%
FoxRouter	0.1681	0.5282	0.2581	13%
xcgx	0.5796	1.8216	0.8901	45%
TokenHub	1.40	4.40	2.15	109%

Resale listings: subrouter.ai public marketplace snapshot 2026-10-20.

Official pricing from Z AI. See the third-party resale listings above for reseller prices — those are not official and not verified by this site.

See all of Z AI's models on its provider page, or browse the full model directory.