GLM-5.3

Z.ai's latest flagship reasoning model with a 1M-token context window and controllable thinking length.

Try in Chat Compare

Input price: $0.7008–$2.10list $1.168-40%
Output price: $2.4528–$6.60list $4.088-40%

Context: 1M
Max output: 131K

Capability: 157 (#28 of 79)
Human preference: 1476
30-day uptime: —

Released: 2026-08-14

InputTextOutputText

Providers

Providers that serve this model. With Auto, each request goes to the best available provider. Prices in USD per 1M tokens; stats cover the last 30 days.

AutoInput$0.7008–$2.10-40%Output$2.4528–$6.60-40%Cache read$0.154–$0.39Context1MMax output131KWe send each request to the best-priced healthy provider. You pay that provider’s price.Tencent Cloud TokenHubCheapestInput$0.7008-40%Output$2.4528-40%Cache read$0.1752-40%ChinaNo trainingAlibaba Cloud (Model Studio Intl)Input$1.131Output$3.957Cache read$0.283Global (HK/DE/JP)No trainingFireworks AIInput$1.40Output$4.40Cache read$0.26Context1MMax output131KUnited StatesNo trainingNo retentionMistral AIInput$1.54Output$4.84Cache read$0.154FranceNo trainingNo retentionTogether AIInput$1.54Output$4.84Cache read$0.286Context1MUnited Statesfp4No trainingNo retentionAmazon BedrockInput$2.0328Output$6.3888Cache read$0.37752Context1MMax output128KUnited StatesNo trainingNo retentionFireworks AIInput$2.10Output$6.60Cache read$0.39Context1MMax output131KUnited StatesNo trainingNo retention

Pricing

Prices vary by provider. Showing Tencent Cloud TokenHub, the lowest. Pick a provider above to see its prices.

Input: $0.7008list $1.168-40%; per 1M tokens
Output: $2.4528list $4.088-40%; per 1M tokens
Cache read: $0.1752list $0.292-40%; per 1M tokens

Try it

Runs on your balance and is billed like any API request.

curl https://api.ohmygpt.com/v1/chat/completions \
  -H "Authorization: Bearer $OHMYGPT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "zhipu/glm-5.3",
    "messages": [
      {
        "role": "user",
        "content": "Hello"
      }
    ]
  }'

import os

from openai import OpenAI

client = OpenAI(
    api_key=os.environ["OHMYGPT_API_KEY"],
    base_url="https://api.ohmygpt.com/v1",
)

response = client.chat.completions.create(
    model="zhipu/glm-5.3",
    messages=[{"role": "user", "content": "Hello"}],
)
print(response.choices[0].message.content)

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.OHMYGPT_API_KEY,
  baseURL: "https://api.ohmygpt.com/v1",
});

const response = await client.chat.completions.create({
  model: "zhipu/glm-5.3",
  messages: [{ role: "user", content: "Hello" }],
});
console.log(response.choices[0].message.content);

The answer streams in here.

Billed by usage

Similar models

Other models with the same output types at a similar price.

Better value: more capable, lower price
Pareto frontier
This model
Similar models

Capability scores are from Epoch AI’s Epoch Capabilities Index (CC BY 4.0, as of 2026-11-10), which combines dozens of benchmarks with GPT-5 set at 150. epoch.ai/eci

Price: our current input price per 1M tokens in USD, lowest across channels. Dated snapshots and resold copies of the same model are merged into one point; free models are not shown.

Shaded area: capability above and price below the median of all models. Pareto frontier: no other model is both cheaper and more capable.

GLM-5.3This model

Capability: 157
Input: $0.7008–$2.10
Output: $2.4528–$6.60

Kimi K2.7 Code

Capability: 151
Input: $0.71512–$1.0439
Output: $2.97048–$4.3362

DeepSeek Chat

Capability: —
Input: $0.682
Output: $2.035

Gemini 3.8 Flash

Capability: 159
Input: $0.675
Output: $3.375

GPT-5.4 Mini

Capability: 149
Input: $0.675
Output: $4.05

Human preference ratings are from the LMArena Text Arena (CC BY 4.0, as of 2026-11-09): Elo ratings from blind votes, on a different scale from capability scores. lmarena.ai/leaderboard/text