Subscription vs. API: 7 AI Models Tested on 768 Prompts

quantslant@ai:~$ cat news_1 › A reader on X asked me a direct question: I compare models using API prices, but how much can you get done with a subscription?

quantslant@ai:~$ cat news_2 › I ran the numbers using my own logs.

quantslant@ai:~$ cat news_3 › I took 768 prompts from my October 24, 2026 test - Claude Opus 5.5, GPT-6 Astra, Gemini 4 Argon, Kimi K3.1 Pro, Qwen3.8 Max, GLM-5.3 and DeepSeek V4.1 Flash, across 12 task types in 10 languages - calculated the median cost per task using official pricing, then compared it with plan prices checked on the same day.

quantslant@ai:~$ cat news_4 › The short answer (as of October 24, 2026) For $20 in API usage, you get about 1,050 typical short tasks with Claude Opus 5.5 or about 1,175 with GPT-6 Astra.

Subscription vs. API: 7 AI Models Tested on 768 Prompts

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