AI got a lot cheaper in September 2026:
→ GPT-6.1 Sol matched GPT-6 Astra on DeepSWE at one-fifth the token price, 26 days later
→ GPT-6 Sol and Luna: 50% cheaper than GPT-5.6
→ Terminal-Bench Science: $5.47 per task (GPT-6.1 Sol) vs $23.80 (Astra)
→ Cached input: 95% off on GPT-6.1 Sol and Gemini 4 Argon
→ Claude Opus 5.5 costs 40% less to run than Opus 5
The real metric now: cost per finished task, not price per token. Slide 8: 3 ways to cut your bill.
I'm Pranjul Rathour, GenAI engineer from Kanpur. Want me to judge your hackathon or speak at your college? pranjulrathour.scult.in/invite
AI #LLM #GenAI #AIcosts #OpenAI #Claude #Gemini #Developers
Pranjul Rathour · GenAI engineer, 3x hackathon winner, campus mentor. Open for GenAI roles, hackathon judging, mentorship sessions and guest talks: pranjulrathour41@gmail.com · Invite me to your campus
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