Last refreshed 2026-04-18. Next refresh: weekly.
Why use Qwen3-4B on Fireworks AI?
Fireworks AI offers Qwen3-4B with pay-as-you-go pricing at $0.20/1M input tokens. Fireworks AI offers a generative AI platform as a service, focusing on rapid product iteration and cost-efficient AI deployment.
Input / 1M
$0.20
Output / 1M
$0.20
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
qwen3-4bRequest 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="qwen3-4b",
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.
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.20 |
| Output tokens | $0.20 |
Capabilities
No model capability flags are currently sourced.
About Qwen3-4B
Qwen3 small model with 4 billion parameters.
FAQ
What does Qwen3-4B cost on Fireworks AI?
On Fireworks AI, Qwen3-4B costs $0.2 per 1M input tokens and $0.2 per 1M output tokens.
What is the context window for Qwen3-4B on Fireworks AI?
Qwen3-4B supports a 40,000 token context window on Fireworks AI.
Who created Qwen3-4B?
Qwen3-4B was created by Alibaba as part of the Qwen3 model family.
Is Qwen3-4B open source?
Qwen3-4B is open source under Apache 2.0 according to the seed data.
Get Started
Model Specs
Released2025-01-01
Parameters4B
Context40K
ArchitectureDecoder Only