Head to head
GPT-5.6 LunavsMuse Spark 1.2
For tasks, about a month.
Verdict · measured basis
GPT-5.6 Luna costs $2.65 per solved task against
Muse Spark 1.2 at $3.34 — ▼ 1.3x cheaper.
Over 200 tasks that is $138 a month.
On output token price alone GPT-5.6 Luna looks 3.5x cheaper. The ranking holds, but the margin changes.
Verified pricing, pass rate and cost per solved task for GPT-5.6 Luna and Muse Spark 1.2| Figure | GPT-5.6 Luna | Muse Spark 1.2 |
|---|
| Input $/Mtok | $0.2 | $1.25 |
|---|
| Output $/Mtok | $1.2 | $4.25 |
|---|
| Cached input $/Mtok | $0.02 | $0.15 |
|---|
| Pass rate | 57% | 62% |
|---|
| Cost per solved task | $2.65measured | $3.34measured |
|---|
| Cost per month | $530 | $668 |
|---|
Cost per month against tasks per month · drag the marker
Solid measured · dashed modeled · dotted stale. The gap is the verdict.
Source: Artificial Analysis (artificialanalysis.ai) · verified 2026-08-21 · prices from each provider's pricing page; measured rows ignore the tier · Methodology · All models at these settings