Claude Opus 4.8 vs GLM-5.3
Rank, tier, score and price side by side, from our weekly rankings. Scores are editorial opinion based on public sources.
A
Claude Opus 4.8
B
GLM-5.3
- ProviderAnthropicZ.ai
- Rank#21#14Higher rank
- TierASHigher tier
- Score84.786.3Higher score
- Price$5 / $25 per 1M tokens (in/out)Open weights (GLM-5.3 License); API $1.40 input / $4.40 output per 1M tokens via Z.aiLower price tier
- TaglineAn earlier Anthropic Opus release (May 2026), strong across coding, reasoning and long-context knowledge work; since followed by Opus 5 and 5.5.Z.ai's open-weight flagship with a 1M-token context window for long-horizon work.
| Attribute | Claude Opus 4.8 | GLM-5.3 |
|---|---|---|
| Provider | Anthropic | Z.ai |
| Rank | #21 | #14Higher rank |
| Tier | A | SHigher tier |
| Score | 84.7 | 86.3Higher score |
| Price | $5 / $25 per 1M tokens (in/out) | Open weights (GLM-5.3 License); API $1.40 input / $4.40 output per 1M tokens via Z.aiLower price tier |
| Tagline | An earlier Anthropic Opus release (May 2026), strong across coding, reasoning and long-context knowledge work; since followed by Opus 5 and 5.5. | Z.ai's open-weight flagship with a 1M-token context window for long-horizon work. |