GLM-5.3

API ID glm-5.3

GLM-5.3 is a Z.ai model, released August 2026. Standard price: $1.40 input and $4.40 output per 1M tokens.

Status: Active
Released: August 2026
Shutdown: none announced
Replacement: —

Z.ai doesn't publish shutdown dates. AIWire checks its model list daily and will flag glm-5.3 if it disappears.

Benchmarks

Scores as each source published them

Comparing with GLM-5.2, the previous model in this line. A score is compared only with the same benchmark from the same source, at the same setting where both have it. Full comparison: prices, limits, features

Arena

Arena	GLM-5.3	GLM-5.2	Change	Rank	Date	Source
Text By category Math 1496 rank 21 vs 1485 (+11, within range) Creative writing 1453 rank 35 vs 1453 (0, within range) Instruction following 1475 rank 26 vs 1469 (+6, within range) Hard prompts 1504 rank 25 vs 1496 (+8, within range) Long prompts 1485 rank 37 vs 1486 (−1, within range) Multi-turn 1478 rank 43 vs 1476 (+2, within range) Expert 1519 rank 20 vs 1502 (+17, within range)	1479 ±5	1475 ±4	+4 within range	28 of 415 21,797 votes	Oct 13, 2026	source
Text: Coding	1520 ±9	1513 ±6	+7 within range	35 of 410 5,252 votes	Oct 13, 2026	source
WebDev	1621 ±8	1604 ±6	+17	23 of 142 9,125 votes	Oct 13, 2026	source
Agent	0.020 ±0.008	0.024 ±0.008	−0.004 within range	24 of 54 86,255 sessions	Oct 14, 2026	source

Rated as glm-5.3-max (max effort); GLM-5.2 as glm-5.2-max (max effort). Text and WebDev ratings come from people voting between two anonymous answers; Text is style-controlled, as on arena.ai. Agent is Arena's separate score for real agent sessions, on its own scale. Data: Arena (arena.ai), CC BY 4.0.

Epoch AI

Benchmark	GLM-5.3	GLM-5.2	Change	Setting	Run	Source
FrontierMath Tier 4	29.3%	29.3%	0 pts	max effort	Aug 25, 2026	source
FrontierMath Tiers 1-3	68.8%	59.2%	+9.6 pts	max effort	Aug 25, 2026	source
GPQA Diamond	90.9%	91.9%	−1.0 pts	max effort	Aug 24, 2026	source
OTIS Mock AIME 2024-2025	91.1%	86.4%	+4.7 pts	max effort	Aug 24, 2026	source
SimpleQA Verified	41.0%	34.2%	+6.8 pts	max effort	Aug 28, 2026	source

Run independently by Epoch AI. Data: Epoch AI, Capabilities & benchmarking (epoch.ai/benchmarks), CC BY.

On cloud platforms

All platform dates

Platform	Platform ID	State	Shutdown	Time left	Replacement	Source
Amazon Bedrock	zai.glm-5.3	Active	none announced		—	source

Read daily from each platform's own pages. The shutdown date and countdown on this page use Z.ai's own date.

Price history

USD per 1M tokens, standard tier

We started recording this model's prices on Oct 5, 2026. The history grows with each daily check.

Show as a table

From	Type	Price
Oct 5, 2026	Input	$1.40
Oct 5, 2026	Output	$4.40

Prices

USD per 1M tokens, every type and band, by tier

Type	Price $/1M	In effect
Standard
input	$1.40
cached input	$0.26
output	$4.40

Changelog

Changes we detected on Z.ai's pages

No changes recorded yet.

Email alerts

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Last checked Oct 15, 2026, 2:00 am ET · Sources: Z.ai models, Z.ai pricing