Head to head
GPT-5.6 SolvsGLM-5.3
For tasks, about a month.
Verdict · measured basis
GPT-5.6 Sol costs $0.0095 per solved task against
GLM-5.3 at $0.10 — ▼ 10x cheaper.
Over 200 tasks that is $18 a month.
On output token price alone GLM-5.3 looks 6.8x cheaper. The ranking reverses once you divide by pass rate — the cheaper tokens do not win the task.
Verified pricing, pass rate and cost per solved task for GPT-5.6 Sol and GLM-5.3| Figure | GPT-5.6 Sol | GLM-5.3 |
|---|
| Input $/Mtok | $5 | $1.4 |
|---|
| Output $/Mtok | $30 | $4.4 |
|---|
| Cached input $/Mtok | $0.5 | $0.26 |
|---|
| Pass rate | 100% | 33% |
|---|
| Cost per solved task | $0.0095measured | $0.10measured |
|---|
| Cost per month | $2 | $20 |
|---|
Cost per month against tasks per month · drag the marker
Solid measured · dashed modeled · dotted stale. The gap is the verdict.
Solvency Bench (solvency.dev) — first-party measurement · verified 2026-08-21 · prices from each provider's pricing page; measured rows ignore the tier · Methodology · All models at these settings