Last refreshed 2026-05-25. Next refresh: weekly.
Why use GLM-5.1 on Fireworks AI?
Fireworks AI offers GLM-5.1 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-5.1 across 5 providers to find the best fit for your use caseSetup recipe
Python + curlpip install openaiexport FIREWORKS_API_KEY=...import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["FIREWORKS_API_KEY"],glm-5.1Request 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="glm-5.1",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- 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-5.1 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Z.ai | $0.98 | $3.08 |
| OpenRouter | $1.05 | $3.50 |
| Fireworks AI | $1.40 | $4.40 |
| Vercel AI Gateway | $1.40 | $4.40 |
| Novita AI | $1.38 | $4.40 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $1.40 |
| Output tokens | $4.40 |
Capabilities
About GLM-5.1
Post-training variant of GLM-5 from Z.ai (Zhipu AI) with enhanced agentic coding capabilities. Released April 7, 2026. 754B parameters (40B active) in Mixture of Experts architecture, 200K token context, 128K max output. Supports autonomous plan–execute–test–fix–optimize loops for up to 8 hours without human intervention. Trained entirely on Huawei Ascend hardware (no Nvidia). Key benchmarks: SWE-bench Pro 58.4 (world #1 at release, surpassing GPT-5.4 57.7 and Claude Opus 4.6 57.3), GPQA Diamond 86.2, AIME 2026 95.3, Terminal-Bench 2.0 63.5, MCP-Atlas 71.8, Chatbot Arena Elo 1472 (May 2026, arena.ai). Available via Z.AI API ($1.40/$4.40 per 1M input/output tokens) and open weights on Hugging Face under MIT license.
FAQ
What does GLM-5.1 cost on Fireworks AI?
On Fireworks AI, GLM-5.1 costs $1.40 per 1M input tokens and $4.40 per 1M output tokens.
What is the context window for GLM-5.1 on Fireworks AI?
GLM-5.1 supports a 200k token context window on Fireworks AI.
How does Fireworks AI compare to other GLM-5.1 providers?
GLM-5.1 is available from 5 providers. The cheapest input pricing is $0.98/1M tokens from Z.ai.
Who created GLM-5.1?
GLM-5.1 was created by Zhipu AI as part of the GLM-5 model family.
Is GLM-5.1 open source?
GLM-5.1 is open source under MIT according to the seed data.