Claude Opus 5.5 vs GLM 5.3 Flash
aka Opus 5.5 vs GLM 5.3 Flash
Posts
1
Same prompt, separate runs
9Not a controlled comparison: prompts, tools and time differ.
About this matchup
Claude Opus 5.5 vs GLM 5.3 Flash in real side-by-side tests: 1 post from X where both got the same prompt. Judge coding ability from the actual outputs.
Opus 5.5 vs GLM 5.3 Flash: which is better for coding?
Which is better for coding, Opus 5.5 or GLM 5.3 Flash?
None of the 1 post here names one of the two as the better result, so judge the outputs above for the work you care about.
What have Opus 5.5 and GLM 5.3 Flash been tested on?
The most-viewed of the 1 post: paper receipt and fabric under pressure, four models (@sakatayasha). Categories: Simulations.
How many side-by-side tests compare Opus 5.5 and GLM 5.3 Flash?
1 post from X, posted Oct 21, 2026, by @sakatayasha. Every one is listed above with its video and a link to its post on X.
Summary
Claude Opus 5.5 and GLM 5.3 Flash appear together in 1 post on X: paper receipt and fabric under pressure, four models (@sakatayasha). It is part of larger lineups with other models. None of these posts report cost or time per model.
What each post reports
| Post | Model | Time | Cost | Tokens | Post |
|---|---|---|---|---|---|
| Paper receipt and fabric under pressure, four models@sakatayasha | Claude Opus 5.5 | — | — | — | X post |
| Paper receipt and fabric under pressure, four models@sakatayasha | GLM 5.3 Flash | — | — | — | X post |
Only numbers stated in each post. “—” means the post doesn’t say.
Quick facts
| Model | Vendor | Released | Input $/1M tokens | Output $/1M tokens | Context (tokens) | Official links |
|---|---|---|---|---|---|---|
| Claude Opus 5.5 | Anthropic | 2026-09-22 | $4 | $20 | 1,000,000 | Model docs |
| GLM 5.3 Flash | Zhipu AI (Z.ai) |
From the vendors’ official pages, checked 2026-10-19. Standard API list prices; each value links its source and a blank cell could not be verified. The archive’s own numbers above are what each post states.
Models
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