Leaked Gemini 4 Pro specs: 2M context at ~1/5 rival pricing would reset frontier economics

Wanderspor · reddit · 2026-09-27

A Reddit post aggregates circulating leaks and Arena.ai stealth tests (under the gemini-3.8-flash placeholder) for Google's rumored Gemini 4 Pro (unverified). Claimed benchmark leads: DeepSWE v1.1 88.7%, Terminal-bench 2.1 95.3%, GDPval-AA v2 2064 Elo (only model over 2000), OSWorld-2.0 86.8% — pointing at long-horizon agentic work. The rumored pricing is the wilder part: $2.25 input / $11.25 output with 2M context, roughly 1/5 of GPT-6 Astra ($12/$60, 1M) and Claude Fable 5.1 ($10/$50). The author attributes the jumps to strategy-level improvement (à la Google's Dream-RSI paper) plus compute scaling rather than true RSI, and advises holding off on long-term API commitments until official model cards drop.

Related event: Suspected Gemini 4 Pro Spotted in Anonymous Arena Testing(8 posts)→

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