QuickSilver Pro vs Fireworks AI
Fireworks AI runs its own GPU fleet and sets premium prices for DeepSeek. QuickSilver Pro serves the latest DeepSeek V4 wave — V4 Flash at $0.06 / $0.18 for low-cost chat and V4 Pro at $0.70 / $2.10 for premium reasoning — well below Fireworks' rates. Same OpenAI-compatible surface, two-line migration.
At a glance
| Feature | QuickSilver Pro | fireworks |
|---|---|---|
| Catalog focus | Curated frontier + open models; 38 accept image input | Many open models + vision + fine-tuning |
| DeepSeek V4 Pro output | $2.10 / 1M | $3.48 / 1M |
| Official V4 Flash 0731 | $0.06 / $0.18 | $0.14 / $0.28 |
| Fine-tuning / deployments | No | Yes |
| FireFunction V2 (tool calling model) | No | Yes |
| Audio models | No | Yes |
| Image generation | Nano Banana Pro (Gemini 3 Pro Image), Nano Banana 2.1, FLUX.2 Pro, FLUX.1 Schnell, SDXL Turbo, FLUX.2 Klein, Qwen Image 3.0, Seedream 5.0 Pro, Seedream 4, Bria FIBO 1.5, GPT Image 2, GPT Image 2.5 Flare and GPT Image 2.5 Sunburst | Yes |
| OpenAI-compatible chat | Yes | Yes |
| Minimum top-up | $5 | Varies |
Pricing (per million tokens, USD)
Competitor list prices, last checked 2026-08-12.
| Model | QSP input | QSP output | fireworks input | fireworks output | vs. list |
|---|---|---|---|---|---|
| DeepSeek V4 Flash 0731 | $0.06 | $0.18 | $0.14 | $0.28 | compare token rates |
| DeepSeek V4 Pro | $0.70 | $2.10 | $1.74 | $3.48 | ~40% output |
| Qwen3.6-35B-A3B | $0.05 | $0.70 | Comparable | Comparable | — |
Migration - two lines
import os
from openai import OpenAI
client = OpenAI(
base_url="https://api.quicksilverpro.io/v1",
api_key=os.environ["QSP_KEY"],
)
r = client.chat.completions.create(
model="deepseek-v4-pro",
messages=[{"role": "user", "content": "Hi"}],
)FAQ
On the same V4 Pro model, QuickSilver Pro is $0.70 / $2.10 per 1M tokens versus Fireworks' current $1.74/$3.48 rate — about 60% lower on input and 40% lower on output. The official V4 Flash 0731 build is $0.06 / $0.18 versus Fireworks' $0.14/$0.28, about 57% lower on input and 36% lower on output.
Two lines: change base_url to api.quicksilverpro.io/v1 and swap the API key. Model ID mappings: accounts/fireworks/models/deepseek-v4-pro -> deepseek-v4-pro.
Within 10% on p50 for the V4 wave and Qwen. Live per-model latency is at quicksilverpro.io/status.
No. FireFunction V2 is Fireworks' proprietary fine-tuned model; it is not in the QuickSilver Pro catalog. For tool calling, DeepSeek V4 Flash and Qwen3.6-35B-A3B both support the OpenAI tools / function calling API.
Start with your own key
Change two lines. Compare current per-token prices before your first call.
Get API Key