Vedika Fast vs Grok 3
Compare Vedika Fast and Grok 3: pricing, performance, context window, latency, and best use cases. Side-by-side comparison on XALEN.
Updated 2026-05-21 · By Abhishek Raj · Our methodology
| Feature | Vedika Fast | Grok 3 |
|---|---|---|
| Category | Domain Specialist | Frontier |
| Parameters | 8B | ~800B |
| Context Window | 32K | 128K |
| Input Price | $0.04/1M tokens | $0.10/1M tokens |
| Output Price | $0.06/1M tokens | $0.25/1M tokens |
| Latency | ~120ms | ~500ms |
Choose Vedika Fast when:
- ✓ Voice astrology bots
- ✓ Real-time chatbots
- ✓ Temple kiosks
Sub-200ms latency, Voice-optimized, Real-time chat
Choose Grok 3 when:
- ✓ Transit predictions
- ✓ Creative interpretations
- ✓ Research
Strong reasoning, Real-time knowledge, Creative output
Verdict: Vedika Fast vs Grok 3
For cost efficiency, Vedika Fast wins at $0.04/1M input tokens. For speed, Vedika Fast is faster at ~120ms. Vedika Fast excels at Voice astrology bots while Grok 3 is better for Transit predictions. Both are available on XALEN through a single API — try them in the Playground to see which fits your workload.
Detailed Analysis
Pricing Comparison
Vedika Fast costs $0.04/1M input tokens and $0.06/1M output tokens. Grok 3 costs $0.10 input and $0.25 output. Vedika Fast is 2.5x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.
Performance & Context
Vedika Fast has a 32K context window with ~120ms latency. Grok 3 offers 128K context at ~500ms. Grok 3 has the larger context window.
Best For
Vedika Fast (Domain Specialist) is optimized for: Voice astrology bots, Real-time chatbots, Temple kiosks. Grok 3 (Frontier) works best for: Transit predictions, Creative interpretations, Research.
Try Both on XALEN
Both models are available through XALEN's OpenAI-compatible API. Switch between them by changing the model parameter:
from xalen import XALEN
client = XALEN(api_key="xln_test_YOUR_KEY")
# Use Vedika Fast
response_a = client.chat.completions.create(
model="vedika-fast",
messages=[{"role": "user", "content": "Your question here"}]
)
# Use Grok 3
response_b = client.chat.completions.create(
model="grok-3",
messages=[{"role": "user", "content": "Your question here"}]
)Frequently Asked Questions
Which is better, Vedika Fast or Grok 3?
Vedika Fast (Domain Specialist, 8B) offers Sub-200ms latency. Grok 3 (Frontier, ~800B) offers Strong reasoning. Choose Vedika Fast for Voice astrology bots or Grok 3 for Transit predictions.
How much does Vedika Fast cost vs Grok 3?
Vedika Fast: $0.04/1M input, $0.06/1M output. Grok 3: $0.10/1M input, $0.25/1M output. Both available on XALEN with batch processing at 50% discount.
Can I use both models on XALEN?
Yes. XALEN provides 200+ models through a single OpenAI-compatible API. Switch between Vedika Fast and Grok 3 by changing the model parameter. No code changes needed.
Related Comparisons
Last updated: 2026-05-21. Pricing and specifications may change. Check pricing page for latest rates.