Directory · Model comparison
GPT-5.6 Luna vs Grok Build 0.1
Side-by-side API economics and benchmarks. Per-1M input and output rates, context window, and verified metrics.
Tale of the tape
Head-to-head specs pulled from each model profile.
| Metric | GPT-5.6 Luna | Grok Build 0.1 |
|---|---|---|
| Input cost / 1M | $1.00 | $1.00 |
| Output cost / 1M | $6.00 | $2.00 |
| Context window | 1,050,000 tokens | 256,000 tokens |
| MMLU score | — | — |
Cost verdict
Enter monthly input and output volumes to see total cost savings.
GPT-5.6 Luna
- Input: 1M × $1.00 = $1.00
- Output: 1M × $6.00 = $6.00
- Total
- $7.00
Grok Build 0.1
- Input: 1M × $1.00 = $1.00
- Output: 1M × $2.00 = $2.00
- Total
- $3.00
Total cost savings
$4.00
Grok Build 0.1 saves $4.00 per month vs the other model at this volume.
Model routing savings
Uses this page's verified rates. GPT-5.6 Luna is the premium route (higher combined per-1M cost); Grok Build 0.1 handles routine traffic.
All premium
GPT-5.6 Luna
$350.00
100% of input and output on the premium route
Routed stack
80% → Grok Build 0.1
20% → GPT-5.6 Luna
$190.00
- Routine slice
- $120.00
- Premium slice
- $70.00
Monthly savings
$160.00
45.7% lower
Rates pulled from this page's model database entries (gpt-5-6-luna, grok-build-0-1) — same per-1M input/output figures as Tale of the tape. Production routing needs quality gates and monitoring.
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