Last refreshed 2026-11-12. Next refresh: weekly.
Why use GLM-5.3 on Fireworks AI?
Fireworks AI offers GLM-5.3 with pay-as-you-go pricing at $1.40/1M input tokens. Fireworks AI offers a generative AI platform as a service, focusing on rapid product iteration and cost-efficient AI deployment.
Compare GLM-5.3 across 7 providers to find the best fit for your use caseInput / 1M
$1.40
Output / 1M
$4.40
Cache
Not sourced
Batch
Not sourced
Setup recipe
Python + curlInstall
pip install openaiAuth
export FIREWORKS_API_KEY=...Call
import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["FIREWORKS_API_KEY"],Model ID
accounts/fireworks/models/glm-5p3Request example
import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["FIREWORKS_API_KEY"],
base_url="https://api.fireworks.ai/inference/v1"
)
response = client.chat.completions.create(
model="accounts/fireworks/models/glm-5p3",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- Use provider model ID "accounts/fireworks/models/glm-5p3", not the LLMReference slug "glm-5.3".
- Fireworks model IDs use "accounts/fireworks/models/{model-name}" format, e.g. "accounts/fireworks/models/llama4-scout-instruct-basic" or "accounts/fireworks/models/deepseek-r1".
- The examples expect FIREWORKS_API_KEY; rename it only if your application config maps the new variable.
Compare GLM-5.3 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Z.ai | $1.40 | $4.40 |
| OpenRouter | $1.40 | $4.40 |
| Featherless | $1.40 | $4.40 |
| SambaNova Fast API | $2.80 | $8.80 |
| Together AI | $1.40 | $4.40 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $1.40 |
| Output tokens | $4.40 |
Capabilities
ReasoningJSON / Tool useStructured OutputsPrompt Caching
About GLM-5.3
GLM-5.3 is Z.ai's August 2026 coding-first post-training release on the same GLM-5.2 base model, focused on complex software engineering, long-horizon agentic coding, and emergent cybersecurity evaluation. It is available through the GLM Coding Plan and Z.ai API; open weights are scheduled after safety hardening. Official API model ID: glm-5.3.
Get Started
Model Specs
Released2026-08-14
Context1M