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AI Model Comparisons
Objective, architectural comparisons of frontier LLMs with verified specifications, context lengths, and trade-offs.
Interactive Tool
Live Side-by-Side Matrix
Select any two models to compare specs immediately.
A:
vsB:
| Specification | Claude 3.5 Sonnet | Claude Sonnet 4.5 |
|---|---|---|
| License | Proprietary API | Proprietary API |
| Context Window | 200K tokens | 200K tokens |
| Multimodal | Yes (Vision/Audio) | Yes (Vision/Audio) |
| Input Formats | text, image | text, image |
| Release Date | Jun 20, 2024 | Sep 29, 2025 |
| Key Capabilities |
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In-Depth Editorial Comparisons
Detailed benchmarks, qualitative breakdowns, architectural shifts, and direct head-to-head analysis.
Head-to-headRead analysis →
GPT-5 vs Claude Sonnet 4.5
GPT-5 and Claude Sonnet 4.5 target similar frontier assistant workloads but differ on context length, coding posture and agentic tooling.
Head-to-headRead analysis →
GPT-4 vs GPT-5
Generational comparison between GPT-4 (2023) and GPT-5 (2025).
Head-to-headRead analysis →
Llama 3 vs Llama 4
Comparing Meta's two most recent open-weight releases.