Grok-3.5 Early Access Review: xAI's Bold Leap Forward
xAI's Grok-3.5 brings real-time data access and unfiltered analysis. Our early access review covers capabilities, quirks, and controversies.
Real-Time Intelligence
Grok-3.5's killer feature remains its integration with X (formerly Twitter) and real-time web data. Unlike models that rely on training cutoffs, Grok can access and analyze current events, stock movements, and social media trends in real-time.
The model scores 90.1% on MMLU-Pro — a significant jump from Grok-3's 86.4% and now competitive with Claude 4.5 Sonnet. xAI has clearly invested heavily in model capability.
Unfiltered Analysis
Grok-3.5 takes a notably different approach to content policy than Claude or GPT. It's willing to analyze controversial topics, political figures, and sensitive subjects with less filtering. This makes it valuable for journalists, researchers, and analysts who need unvarnished assessments.
However, this same characteristic means it requires more careful deployment in customer-facing applications where brand safety matters.
Technical Capabilities
On coding, Grok-3.5 scores 85.3% on HumanEval+ — solid but below Claude 4.5 Sonnet and GPT-5.2. Its 128K context window handles most use cases. The model supports image inputs but not video or audio.
Pricing at $5/M input tokens and $15/M output tokens places it in the premium tier, though xAI offers free access for X Premium subscribers.
Verdict
Grok-3.5 is the best model for real-time analysis and current events processing. It's also the preferred choice for users who want less filtered AI responses. For general enterprise use, Claude and GPT remain safer bets — but Grok has carved out a meaningful niche.
Compare Grok-3.5 with other models on Vincony.com.