QuickSilver Pro vs DeepInfra
DeepInfra is the budget-friendly option among DeepSeek resellers. QuickSilver Pro is still lower: ~20% cheaper on DeepSeek V3 output, ~22% cheaper on DeepSeek R1 output. If you're cost-sensitive enough to already be on DeepInfra, the further savings compound. Same OpenAI-compatible API, two-line migration.
At a glance
| Feature | QuickSilver Pro | deepinfra |
|---|---|---|
| Catalog focus | 3 open-source LLMs | 60+ open models, vision, audio |
| DeepSeek V3 output price | $0.70 / 1M | $0.88 / 1M |
| DeepSeek R1 output price | $1.70 / 1M | $2.19 / 1M |
| Cached input discount | Not yet | Yes (DeepSeek V3/V3.1) |
| Embeddings / audio / image | No | Yes |
| Dedicated deployments | No | Yes |
| OpenAI-compatible chat | Yes | Yes |
| Minimum top-up | $5 | $20 |
Pricing (per million tokens, USD)
Public list prices as of April 2026.
| Model | QSP input | QSP output | deepinfra input | deepinfra output | Savings |
|---|---|---|---|---|---|
| DeepSeek V3 | $0.24 | $0.70 | $0.28 | $0.88 | ~20% |
| DeepSeek R1 | $0.40 | $1.70 | $0.55 | $2.19 | ~22% |
| Qwen3.5-35B-A3B | $0.13 | $1.00 | Comparable | Comparable | — |
Migration — two lines
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-v3",
messages=[{"role": "user", "content": "Hi"}],
)FAQ
How much cheaper is it?
On list pricing: ~14% cheaper input + ~20% cheaper output on DeepSeek V3. ~27% cheaper input + ~22% cheaper output on DeepSeek R1. Cached-input pricing on DeepInfra can change the math; compare effective per-request cost for cache-heavy workloads.
How do I migrate?
Two lines: swap base_url to api.quicksilverpro.io/v1, new API key, drop the deepseek-ai/ or Qwen/ prefix.
Does QuickSilver Pro support prompt caching?
Not yet as a separate rate. DeepInfra's cached-input discount can lower effective input cost for repeat prompts. Benchmark both if cache-hit ratio is material for your workload.
What about embeddings / audio / images?
Not offered. QuickSilver Pro is chat completions only on three LLMs. DeepInfra covers those modalities.