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Grok 4.7 vs Claude Opus 5
Claude Opus 5 scores higher than Grok 4.7 on all 4 public leaderboards that rate both. On the ArtificialWatch Index, which takes the median of each model's percentile across the boards that score it, Grok 4.7 is at 69.7 and Claude Opus 5 at 82.7 (out of 100).
Scores as published by each board; table composed September 24, 2026.
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Leaderboard by leaderboard
| Board | Grok 4.7 | Claude Opus 5 | Higher |
|---|---|---|---|
| LMArena Elo (community votes) | 1,632.3 | 1,692.4 | Claude Opus 5 |
| LiveBench global average (0-100) | 77.4 | 80.1 | Claude Opus 5 |
| Vals AI Vals Index accuracy % · weighted finance + coding tasks | 60.2 | 67.2 | Claude Opus 5 |
| Artificial Analysis intelligence index · measured runs only | 46.4 | 50.8 | Claude Opus 5 |
Raw scores are each board's own scale, so compare within a row, not across rows. Full table: the bench index.
Grok 4.7 at a glance
- Developer
- xAI
- Status
- Live since September 21, 2026
Live — Sep 21 · 500k ctx · $2/$6 per 1M under a 200k prompt, $4/$12 over it, $0.50 cached — unchanged from 4.6 · Artificial Analysis: Intelligence Index 46 (+2), 4th on the Coding Agent Index at 56 with Grok Build, AA-Briefcase 1657 Elo (+111) alongside Opus 5 and Fable 5.1 · burns ~81k output tokens per index task at xhigh, 2.25x Grok 4.6.
Grok 4.7 puts xAI in the top four - and it buys that with three times the tokens
2026-09-21 · xAI shipped Grok 4.7 today. Our radar read the id at 15:49:44 UTC, confirmed it on the next sweep and sent 307 alerts 61 seconds after first sight.
Musk says Grok 4.6 ships next week — on the earnings call where SpaceX stock fell 8%
2026-08-05 · SpaceX held its first public earnings call yesterday. Grok was on the agenda, and the version of it circulating as a bullet list flattens three very different levels of certainty into one. Here they are separated.
Claude Opus 5 at a glance
- Developer
- Anthropic
- Status
- Live since July 24, 2026
Live — detected 16:51 UTC Jul 24, alert fired 61s later · superseded by Opus 5.5 on Sep 22 and moved to Anthropic's legacy list; still served at $5/$25, which is now MORE than its successor.
Claude Opus 5 is live — we detected it at 16:51 UTC and had alerts out 61 seconds later
2026-07-24 · Anthropic's Claude Opus 5 went live on the public API today. Our checkers saw the id appear at 16:51:33 UTC, confirmed it on the next 60-second sweep, and the alert blast went out at 16:52:34 — sixty-one seconds from first sighting to inbox.
Grok 4.7 vs Claude Opus 5: quick answers
Which is better, Grok 4.7 or Claude Opus 5?
It depends on what you measure. Claude Opus 5 scores higher than Grok 4.7 on all 4 public leaderboards that rate both. Claude Opus 5's widest lead is on Vals AI. On the ArtificialWatch Index, which takes the median of each model's percentile across the boards that score it, Grok 4.7 is at 69.7 and Claude Opus 5 at 82.7 (out of 100).
Which is newer, Grok 4.7 or Claude Opus 5?
Grok 4.7. It went live on September 21, 2026, 59 days after Claude Opus 5 (July 24, 2026).
Who makes Grok 4.7 and Claude Opus 5?
Grok 4.7 is from xAI; Claude Opus 5 is from Anthropic.
Where do these numbers come from?
Each score is the leaderboard's own published figure, read by ArtificialWatch (table composed September 24, 2026). Boards measure different things, so raw scores are only comparable within a row.
More comparisons
Watch free: Chrome push the moment a new model answers on a public API, an email about 15 minutes later. Also: the bench index · the wire