OpenGPTEvidence-based model decisionsCURATED MODEL COMPARISON
Gemini 3.5 Flash vs Grok 4.5
Compare two current cross-provider candidates before validating latency, cost, and quality on your workload. Compare exact official model IDs using published signals, provider links, and clearly separated family-level guidance.
Updated:Published data side by side
Each value keeps its original source and scale. Missing data is not treated as zero, and OpenGPT does not create a composite winner.
| Ranking angle | Gemini 3.5 Flash | Grok 4.5 |
|---|---|---|
| User preference | Rank 17Published value: 1476Source: LMArena ↗ | Rank 33Published value: 1468Source: LMArena ↗ |
| Intelligence index | No linked comparable data | Rank 7Published value: 54Source: Artificial Analysis ↗ |
| Objective tasks | No linked comparable data | Rank 9Published value: 76.3Source: LiveBench ↗ |
| Cost per successful task | Rank 9Published value: $0.249Source: LiveBench ↗ | Rank 1Published value: $0.128Source: LiveBench ↗ |
| Open-weight models | No linked comparable data | No linked comparable data |
This page organizes published third-party data. OpenGPT did not rerun the underlying evaluations.
What to validate
These strengths and limits describe the wider model family from official positioning, not measured results for this exact version.
Gemini 3.5 Flash
gemini-3.5-flashFamily strengths
Native multimodal options across several input types. Integrates with Google's managed AI and developer ecosystem.
Family limitations
Closed weights for flagship hosted models. Features, context, and availability differ across versions and endpoints.
Grok 4.5
grok-4.5Family strengths
Managed models include tool and real-time information paths. Provides general, reasoning, coding, and multimodal variants.
Family limitations
Closed weights and provider-controlled data/tool access. Observed quality depends on the exact model and enabled tools.
Continue with your decision
Use the interactive matrix to add more models, then validate the final two on your own prompts and constraints.