GLM 5.3 Flash vs GPT-6 Astra
aka GLM 5.3 Flash vs Astra
- CheaperGLM 5.3 Flash1/1 postsmedian gap ~2.5×
As stated in each post, not a controlled benchmark.
Posts
1
Same prompt, separate runs
5Not a controlled comparison: prompts, tools and time differ.
About this matchup
GLM 5.3 Flash vs GPT-6 Astra in real side-by-side tests: 1 post from X where both got the same prompt; 1 post reports cost or time. Judge coding ability from the actual outputs.
GLM 5.3 Flash vs GPT-6 Astra: which is better for coding?
Which is better for coding, GLM 5.3 Flash or GPT-6 Astra?
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.
Which is cheaper, GLM 5.3 Flash or GPT-6 Astra?
1 post states a cost for both: GLM 5.3 Flash was cheaper in it (~2.5× cheaper). These are the costs the posts state for each run, not list prices.
What have GLM 5.3 Flash and GPT-6 Astra been tested on?
The most-viewed of the 1 post: erupting 3D volcano, Kimi K3.1 Pro and 3 others (@criscxuan). Categories: 3D & Shaders, Simulations.
Summary
GLM 5.3 Flash and GPT-6 Astra appear together in 1 post on X: erupting 3D volcano, Kimi K3.1 Pro and 3 others (@criscxuan). It is part of larger lineups with other models. In @criscxuan's erupting 3D volcano, Kimi K3.1 Pro and 3 others, GLM 5.3 Flash was cheaper ($2.00 vs $5.07), as reported in the post.
What each post reports
| Post | Model | Time | Cost | Tokens | Post |
|---|---|---|---|---|---|
| Erupting 3D volcano, Kimi K3.1 Pro and 3 others@criscxuan | GPT-6 Astra | — | $5.07 | — | X post |
| Erupting 3D volcano, Kimi K3.1 Pro and 3 others@criscxuan | GLM 5.3 Flash | — | $2.00 | — | 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 |
|---|---|---|---|---|---|---|
| GLM 5.3 Flash | Zhipu AI (Z.ai) | |||||
| GPT-6 Astra | OpenAI | 2026-09-03 | $10 | $50 | 1,050,000 | Model docs |
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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