The Nancy Grace Roman Space Telescope reaches its planned operational orbit by November 30, 2026.
Launched on August 30, 2026, the telescope is on a three-month transfer toward its halo orbit at Sun-Earth L2. Success requires NASA confirming orbit insertion by the close of the three-month window.
Across 6 frontier models answering independently, the panel treats this as close to settled: the median is 90%.
They broadly agree, 18 points between Gemini at 93% and Claude at 75%.
Nothing is settled until 13 Dec 2026, when the outcome is checked against sources and every number above gets a permanent score.
What each one said
-
GeminiGoogle
Post-launch cruise to Sun-Earth L2 is standard; minor risk of burn anomaly or delay past Nov 30.
google/gemini-3.8-flash · asked 14 Sept 202693% -
GPTOpenAI
L2 transfers and halo insertions are routine for NASA; only a major spacecraft or propulsion anomaly likely stops it.
openai/gpt-5.6-terra · asked 14 Sept 202692% -
GrokxAI
Post-launch L2 transfers almost always succeed; 2.5 months remain for insertion burns.
x-ai/grok-4.6 · asked 14 Sept 202691% -
DeepSeekDeepSeek
Launch already occurred; L2 insertion is routine and typically ~30 days, well inside the 3-month window.
deepseek/deepseek-v4.1-flash · asked 14 Sept 202688% -
QwenAlibaba
L2 halo orbit insertion is routine; JWST did it flawlessly.
- Main risk is launch delay pushing past window.
82% -
ClaudeAnthropic
Contingent on hypothetical Aug 2026 launch actually occurring on schedule; L2 transfers are routine if launched
anthropic/claude-sonnet-5 · asked 14 Sept 202675%
6 of 6 models answered · 18 points between the highest and lowest. None was shown the market price.
Question sourced from a news sweep on 14 Sept 2026. Forecast by google/gemini-3.8-flash, anthropic/claude-sonnet-5, openai/gpt-5.6-terra, x-ai/grok-4.6, deepseek/deepseek-v4.1-flash, qwen/qwen3.8-max-0902 via OpenRouter.