Home › Compare › AionLabs: Aion 3.5 vs Z.ai: GLM 5.3 Prime
AionLabs: Aion 3.5 vs Z.ai: GLM 5.3 Prime: API Pricing Compared
Comparing AionLabs: Aion 3.5 and Z.ai: GLM 5.3 Prime: on combined input+output list price, AionLabs: Aion 3.5 is cheaper at $9 vs $11.6 per 1M tokens — a difference of $2.6 (22%). AionLabs: Aion 3.5 costs $3 in / $6 out with a 262,144-token context; Z.ai: GLM 5.3 Prime costs $2.8 in / $8.8 out with a 1,000,000-token context.
| AionLabs: Aion 3.5 | Z.ai: GLM 5.3 Prime | |
|---|---|---|
| Input /1M | $3 | $2.8 |
| Output /1M | $6 | $8.8 |
| Cached input /1M | $0.75 | $0.56 |
| Context window | 262,144 | 1,000,000 |
| Max output tokens | 32,768 | 131,072 |
| Cost @ 10M in + 2M out / mo | $42 | $45.6 |
Estimate your own workload in the cost calculator, or open the full pages for AionLabs: Aion 3.5 and Z.ai: GLM 5.3 Prime.
Frequently asked questions
Which is cheaper, AionLabs: Aion 3.5 or Z.ai: GLM 5.3 Prime?
AionLabs: Aion 3.5 is cheaper on combined list price: $9 vs $11.6 per 1M tokens (input + output). At 10M input + 2M output tokens per month, AionLabs: Aion 3.5 costs $42 and Z.ai: GLM 5.3 Prime costs $45.6.
Which has the larger context window, AionLabs: Aion 3.5 or Z.ai: GLM 5.3 Prime?
AionLabs: Aion 3.5 has a context window of 262,144 tokens; Z.ai: GLM 5.3 Prime has 1,000,000 tokens. The larger one is Z.ai: GLM 5.3 Prime.
Price snapshot October 21, 2026, refreshed daily.