Head to head
GPT-5.6 LunavsGLM 5.2
For tasks, about a month.
Verdict · measured basis
GPT-5.6 Luna costs $2.65 per solved task against
GLM 5.2 at $15.49 — ▼ 5.8x cheaper.
Over 200 tasks that is $2.6k a month.
On output token price alone GPT-5.6 Luna looks 3.1x cheaper. The ranking holds, but the margin changes.
Verified pricing, pass rate and cost per solved task for GPT-5.6 Luna and GLM 5.2| Figure | GPT-5.6 Luna | GLM 5.2 |
|---|
| Input $/Mtok | $0.2 | $1.19 |
|---|
| Output $/Mtok | $1.2 | $3.74 |
|---|
| Cached input $/Mtok | $0.02 | $0.221 |
|---|
| Pass rate | 57% | 43% |
|---|
| Cost per solved task | $2.65measured | $15.49measured |
|---|
| Cost per month | $530 | $3.1k |
|---|
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