GLM-5.3 (Cloudflare) vs o3 Mini
Both have similar output pricing, while GLM-5.3 (Cloudflare) offers a larger context window. Choose GLM-5.3 (Cloudflare) or o3 Mini based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | GLM-5.3 (Cloudflare) | o3 Mini |
|---|---|---|
| Provider | LLM Gateway | OpenAI |
| Input / 1M tokens | $1.40 | $1.10 |
| Output / 1M tokens | $4.40 | $4.40 |
| Context window | 1M | 200K |
| Parameters | — | — |
| Open weights | Yes | No |
| Released | Aug 2026 | Dec 2024 |
| Aider Polyglot score | — | 60.4 |
| LMArena (Chatbot Arena) Elo score | — | 1337 |
| SWE-bench Verified score | — | 42.4 |
| Epoch Capabilities Index score | — | 140 |
| GPQA Diamond score | — | 77.0 |
| FrontierMath score | — | 12.4 |
FAQ
Is GLM-5.3 (Cloudflare) or o3 Mini cheaper?
GLM-5.3 (Cloudflare) and o3 Mini have comparable output pricing.
Which has the larger context window, GLM-5.3 (Cloudflare) or o3 Mini?
GLM-5.3 (Cloudflare) has the larger context window (1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.