xAI
SpaceXAI's frontier model for coding, agentic tasks, knowledge work, and configurable reasoning.
OpenRouter
Price record: 2026-10-08. Source: openrouter.
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47.1
Quality Score
1279
Arena ELO
1.5T
Parameters
500K
Context
This measures the amount of verifiable public evidence we have, not how capable the model is. A missing field means it has not been verified yet, not that its value is zero.
18 of 22 public signals
Use this section to answer one simple question first: how much outside evidence do we have that this model performs well? Structured benchmark scores appear first, then official provider evidence, then live arena signal.
This model has normalized benchmark rows, so scores here are directly comparable across benchmark sources.
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Jul 2026
Released
4/5 signals
4/4 signals
5/5 signals
1/4 signals
4/4 signals
Parameters
1.5T
Training compute
Not reported
Dataset scale
Not reported
Base model
Not reported
Source-reported access: API access · Likely confidence
Gaps we are still tracking
These are recent benchmark or leaderboard claims from official provider sources. They are useful for freshness and context, but they are not treated the same as normalized independent benchmark rows.
Introducing Grok 4.5
xAI reports that Grok 4.5 scored 83.3% on Terminal-Bench 2.1 and resolved 64.7% of SWE-Bench Pro tasks.
View source1279
ELO Score
1272 - 1286
95% Confidence
+/-7 points
11.0K
Battles
Oct 8, 2026
Last Updated