GLM-5.3 vs Mercury 2.5 Preview
Specs, per-token pricing, and live benchmark scores — refreshed daily from our benchmark database.
Specs & pricing
| GLM-5.3 | Mercury 2.5 Preview | |
|---|---|---|
| Company | Zhipu AI | Inception |
| Released | Aug 2026 | Aug 2026 |
| Context window | 1.0M | 260K |
| Input /1M tokens | $1.4 | $0.04 |
| Output /1M tokens | $4.4 | $0.15 |
| Open weights | Yes | No |
Benchmarks
| Benchmark | GLM-5.3 | Mercury 2.5 Preview |
|---|---|---|
| GPQA | 91.7% | — |
| Speed (tok/s) | 75 tok/s | — |
Scores come from published leaderboards and official model cards (sources listed on the benchmarks page) and refresh daily. Pricing via vendor pages and OpenRouter.