Will xAI release Grok 5 before 31 March 2027?
deadline 2027-03-31
confidence medium
tier 3 evidence
52%Asturna estimate
Resolution criterion
Yes if xAI makes a model named "Grok 5" available (grok.com, docs.x.ai release notes, or the xAI API) to at least one category of public users. An announcement or a private demo is not sufficient.
Verified starting state
The most recent released model is Grok 4.6, on 12 August 2026. Musk mentioned Grok 4.7 within three weeks. No Grok 5 exists. Grok 5 has been described as imminent since late 2025 and has already slipped at least twice.
What pushes it up
- xAI has demonstrated a rapid release cadence, having shipped Grok 4.6 in August 2026 [0] with Grok 4.7 expected shortly thereafter [Starting State].
- Intense competitive pressure from rivals like Anthropic [2] pressures xAI to deploy its next-generation model as quickly as possible.
- Grok 5 is already being actively discussed as a near-term target by Musk and analysts as of September 2026 [3, 4, 5], supported by the tier 1 starting state confirming its planned existence.
What pushes it down
- Grok 5 has already slipped at least twice since late 2025 [Starting State], indicating a track record of significant delays.
- Grok 5 is being positioned as a major architectural leap or 'AGI target' [4, 5], which typically demands much longer training, safety testing, and alignment cycles than incremental updates.
- Elon Musk's public timelines are notoriously optimistic, meaning 'imminent' statements often translate to much longer real-world delays [Starting State].
What would move this number most
Whether xAI faces unexpected training stability or alignment bottlenecks on its massive Colossus cluster, or if they choose to release further incremental Grok 4.x versions first.
How this number is built
| Deadline | 2027-03-31 |
| Base rate | 50% |
| Best evidence | tier 3 · 5 article(s) used |
| Independent runs | 48 · 55 (spread 7 pts) |
| Confidence | medium |
| Evidence cap | not triggered |
| Last revised | 2026-10-08 09:04 |
| Model | gemini-3.5-flash |
Sources consulted
Probability history
2026-10-08 09:04 52% 9 article(s) on file · gemini-3.5-flash
- What pushes it up. xAI has demonstrated a rapid release cadence, having shipped Grok 4.6 in August 2026 [0] with Grok 4.7 expected shortly thereafter [Starting State].
- What pushes it up. Intense competitive pressure from rivals like Anthropic [2] pressures xAI to deploy its next-generation model as quickly as possible.
- What pushes it up. Grok 5 is already being actively discussed as a near-term target by Musk and analysts as of September 2026 [3, 4, 5], supported by the tier 1 starting state confirming its planned existence.
- What pushes it down. Grok 5 has already slipped at least twice since late 2025 [Starting State], indicating a track record of significant delays.
- What pushes it down. Grok 5 is being positioned as a major architectural leap or 'AGI target' [4, 5], which typically demands much longer training, safety testing, and alignment cycles than incremental updates.
- What pushes it down. Elon Musk's public timelines are notoriously optimistic, meaning 'imminent' statements often translate to much longer real-world delays [Starting State].
- What would move this number most. Whether xAI faces unexpected training stability or alignment bottlenecks on its massive Colossus cluster, or if they choose to release further incremental Grok 4.x versions first.
2026-09-24 09:08 23% 1 article(s) on file · openai/gpt-oss-120b (Groq)
Reasons not recorded for this revision (detailed history has only been kept since recently).