What is the cheapest Z.ai model?

GLM 5.3 Flash is the lowest blended-price option among tracked active non-embedding models, or among all models if only embeddings are listed: $0.04 input and $0.14 output per million tokens ($0.07 blended). Blended pricing uses 75% input and 25% output for generation models; your cheapest option may differ with your workload.

Which Z.ai model has the highest AA Intelligence score?

GLM 5.3 has the highest listed Artificial Analysis Intelligence Index score among tracked active Z.ai models: 44.8. This is one evaluation, not a guarantee of the best result for every task. Models without measured results are not ranked as zero.

How do I calculate monthly Z.ai API costs?

Multiply input tokens in millions by the input rate and add output tokens in millions multiplied by the output rate. For example, 20 million input and 5 million output tokens on GLM 5.3 Flash cost an estimated $1.60 at the listed rates. This excludes tool charges, cache-specific charges, taxes and any endpoint-specific adjustments.

Which Z.ai model has the largest context window?

GLM 5.2 has a listed context window of 1M tokens, the largest among tracked active Z.ai models. Context capacity and maximum response length are separate limits; verify both on the model page and in the endpoint documentation.

What is the latest Z.ai model in the catalog?

GLM 5.3 Prime has the most recent listed release date among tracked active Z.ai models: 2026-09-23. Models without a usable release date are excluded from this comparison. Catalog release dates do not guarantee immediate API availability.

Do Z.ai models support image inputs?

5 tracked active models list image inputs, including GLM 4.5V, GLM 4.6V, GLM 5.3 Flash. Accepting images does not mean a model generates images; check each model's separate input and output formats and endpoint limits.

Can prompt caching lower Z.ai API costs?

15 tracked active models have a listed cached-input rate, including GLM 4.5, GLM 4.5 Air, GLM 4.5V. Savings depend on eligible repeated input and the endpoint's cache rules, duration and any write charges.

Do Z.ai models support tool calling?

16 tracked active models list tool-calling capabilities, including GLM 4.5, GLM 4.5 Air, GLM 4.5V. Verify the exact tool schema and availability with your API endpoint before integrating.

How should I compare Z.ai benchmark scores and prices?

Compare scores within the same evaluation: Artificial Analysis Intelligence Index, DesignArena Elo, general Arena Elo and MMLU-Pro use different tasks and scales. Missing results are not zeroes. Pair a relevant measured benchmark with input/output pricing and tests of your own workload; the cheapest or highest-scoring model is not automatically the best fit.

Are retired Z.ai models included in the price list?

The price list shows active models by default. Turn on Show retired models to include retired catalog entries, where available. A retained model page preserves reference information, not a promise that its API is still available.

Is Z.ai an AI lab or an inference host?

Z.ai is categorized as an AI lab in this catalog. Individual model pages list available API hosts separately; model creator and API host are different roles.

AI lab

Z.ai API pricing & models

We track 16 Z.ai models, priced from $0.04 per 1M input tokens with context windows up to 1M tokens.

Models tracked

Text & Reasoning · Vision

$0.07

Cheapest model

GLM 5.3 Flash

44.8

Top quality score

GLM 5.3

Largest context

6-mo price trend 25%

Price list

All Z.ai models and prices

Current Z.ai API prices per 1M tokens, context windows and benchmark scores. Click a column to sort, or a model for full pricing details.

Show retired models


GLM 5.3 Z.ai	$1.4	$3.39	1M	44.8	—	—	—	0%
GLM 5.3 Flash Z.ai	$0.045	$0.14	1M	41.8	—	—	—	0%
GLM 5.2 Z.ai	$0.171	$10	1M	33.7	1293	—	—	296%
GLM 5 Z.ai	$0.6	$1.92	205K	27.9	1250	—	—	0%
GLM 5 Turbo Z.ai	$1.2	$4	203K	26.6	1267	—	—	0%
GLM 5.1 Z.ai	$0.966	$3.036	205K	26.1	—	—	—	105%
GLM 5V Turbo Z.ai	$1.2	$4	203K	23.5	1232	—	—	0%
GLM 4.7 Z.ai	$0.6	$2.2	205K	22.2	1220	—	—	0%
GLM 4.6 Z.ai	$0.43	$1.75	205K	14.9	1169	—	—	0%
GLM 4.7 Flash Z.ai	$0.0605	$0.4	200K	14.9	1181	—	—	0%
GLM 4.5 Air Z.ai	$0.13	$0.85	131K	11.1	1141	—	—	0%
GLM 4.6V Z.ai	$0.3	$0.9	131K	8.4	—	—	—	0%
GLM 4.5V Z.ai	$0.6	$1.8	66K	6.7	—	—	—	0%
GLM 4.5 Z.ai	$0.6	$2.2	131K	—	1169	—	—	0%
GLM 5.3 FlashX Z.ai	$0.37	$1.25	1M	—	—	—	—	0%
GLM 5.3 Prime Z.ai	$2.8	$8.8	1M	—	—	—	—	0%

GLM 5.3 Z.ai

Input /1M: $1.4
Output /1M: $3.39
Context: 1M
AA Intelligence: 44.8
DesignArena Elo: —
Arena Elo: —
MMLU-Pro: —
30d trend: 0%

GLM 5.3 Flash Z.ai

Input /1M: $0.045
Output /1M: $0.14
Context: 1M
AA Intelligence: 41.8
DesignArena Elo: —
Arena Elo: —
MMLU-Pro: —
30d trend: 0%

GLM 5.2 Z.ai

Input /1M: $0.171
Output /1M: $10
Context: 1M
AA Intelligence: 33.7
DesignArena Elo: 1293
Arena Elo: —
MMLU-Pro: —
30d trend: 296%

GLM 5 Z.ai

Input /1M: $0.6
Output /1M: $1.92
Context: 205K
AA Intelligence: 27.9
DesignArena Elo: 1250
Arena Elo: —
MMLU-Pro: —
30d trend: 0%

GLM 5 Turbo Z.ai

Input /1M: $1.2
Output /1M: $4
Context: 203K
AA Intelligence: 26.6
DesignArena Elo: 1267
Arena Elo: —
MMLU-Pro: —
30d trend: 0%

GLM 5.1 Z.ai

Input /1M: $0.966
Output /1M: $3.036
Context: 205K
AA Intelligence: 26.1
DesignArena Elo: —
Arena Elo: —
MMLU-Pro: —
30d trend: 105%

6 of 16

15 of 16 models

Z.ai input vs output prices

USD per 1M tokens for each model.

15 of 16 models

Z.ai price history

Blended price per 1M tokens over the last 6 months.

By use case

Z.ai models by category

Text & Reasoning

16 models · cheapest

GLM 5.3 Flash

$0.07 blended / 1M

Vision

5 models · cheapest

GLM 5.3 Flash

$0.07 blended / 1M

Comparisons

Z.ai vs other AI providers

Compare GLM 5.3 with models from other AI providers, including pricing and benchmark results.

Z.ai vs Google

GLM 5.3 vs Nano Banana Pro (Gemini 3 Pro Image)

$1.90 vs $4.50 · Arena Elo — vs 1211

Z.ai vs Anthropic

GLM 5.3 vs Claude Opus 5.5

$1.90 vs $8.00 · Arena Elo — vs —

Z.ai vs OpenAI

GLM 5.3 vs GPT-5.2 Pro

$1.90 vs $58 · Arena Elo — vs 1255

Z.ai vs xAI

GLM 5.3 vs Grok 4.7

$1.90 vs $3.00 · Arena Elo — vs —

Z.ai vs Meta

GLM 5.3 vs Muse Spark 1.3

$1.90 vs $2.00 · Arena Elo — vs —

Z.ai vs DeepSeek

GLM 5.3 vs DeepSeek V4.1 Flash

$1.90 vs $0.34 · Arena Elo — vs —

FAQ

Z.ai pricing FAQ

Tracked active Z.ai models range from $0.04 to $2.80 per million input tokens. Output rates are listed separately for each model. Prices vary by model and API endpoint; these are token rates, not a subscription quote.