Video by Mr_Hallow (@mxajeel) · originally posted on XView original post on X
Claude Fable 5.1 vs GPT-6 Astra
Simple GTA game: walk, drive, steal cars
Mr_Hallow@mxajeel5 likes2,417 views
Claude Fable 5.1 (High) and GPT-6 Astra (Extra high) get the same prompt for a simple GTA game: walking, driving, stealing cars. Per the author Astra worked a lot better; run details as stated.
Models
| Model | Effort | Tokens | Notes |
|---|---|---|---|
| Claude Fable 5.1Anthropic | High | 4.6M tokens | ~6 h 15 min; controller + 13 implementer + 19 reviewer agents |
| GPT-6 AstraOpenAI | Extra high | 7.2M tokens | ~55 min of work across two runs; 6.74M cached input tokensWritten as “Astra 6” |
Details
| Kind | Side-by-side (same post, same prompt) |
|---|---|
| Task | Simple GTA game: walk, drive, steal cars |
| Author’s verdict | The Astra build worked a lot better than the Fable one. — @mxajeel’s view (paraphrased) |
| Topic | One-shot GTA clone |
| Category | Games |
| Mode | Agentic |
| Posted | |
| Video length | 73 s |
| Likes / views | 5 / 2,417 · as of Oct 18, 2026 |
| Bookmarks | 6 |
| Sponsored | No |
| Original post | x.com/mxajeel/status/2096626101586129368 |
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