GPT-6 Astra in Practice: Tests, Use Cases, and Feedback

The post claims DeepSeek V4.1 Flash reaches about 98% of Astra's UI-generation quality at $0.023 vs $1.61 per design and 5.3 vs 11.1 minutes, though Astra still leads broader benchmarks.

A model rediscovered 87.5% of benchmark CVEs at pass@3, tying DeepSeek V4 Pro for second behind GPT-6 Astra's 90.6%.

On the author's CVE-rediscovery benchmark, DeepSeek V4.1 Flash hits 87.5% pass@3, behind only GPT-6 Astra at 90.6%, matches Opus 5 on single-run recall, and costs $2.40 per CVE found — 56x cheaper than Astra.

Given the same four-stage brief, DeepSeek built a two-legged three.js cat for $0.16 versus $1.28 for Opus, $1.37 for Gemini and $3.77 for GPT-6 Astra, with Gemini fastest at 19m52s and Opus's cat the most lifelike.

A security-analysis agent on gpt-6-astra occasionally hit OpenAI's cybersecurity risk controls; switching sensitive steps to deepseek-flash stopped the triggers without hurting quality.

The author breaks down a $235 monthly AI subscription stack, with a $100 GPT Pro plan used only for GPT-6 Astra paired with DeepSeek Flash for local agents.

Same koi-pond prompt: Astra finished in 20 minutes for $7, DeepSeek in 1h40m for $0.90; Astra had finer detail, DeepSeek a richer environment but weaker koi.

On the same task, GPT-6 Astra took 40m 18s and cost $14.37, while DeepSeek V4.1 Flash took 2h 07m and cost $0.40, with output the author calls impressive for the price.

The index puts Claude Opus 5.5 first at 57.6, GPT-6 Astra at 52.7, and newcomer DeepSeek V4.1 Flash at 45.1, ranking 12th overall and 2nd among open-weight models.

The author cites an OpenAI staffer saying Chinese models close the gap partly via distillation, and argues DeepSeek matches Astra while being faster and cheaper, demanding evidence.

A satirical post claims a paternity test shows DeepSeek is 84% GPT-6 Astra, and compares DeepSWE coding scores: DeepSeek 77, Astra 74.1, Opus 5.5 74.2.

An OpenAI strategy lead said distillation explains how Chinese models keep pace, estimating it at 50%, read as implying DeepSeek distilled Astra.