| Signal | Anthropic Claude Sonnet Latest | Delta | Claude Sonnet 4.5 |
|---|---|---|---|
Capabilities | 100 | -- | |
Pricing | 85 | -- | |
Context window size | 95 | -- | |
Recency | 100 | +8 | |
Output Capacity | 85 | +5 | |
Benchmarks | 0 | -82 | |
| Overall Result | 2 wins | of 6 | 1 wins |
Score History
40
current score
Claude Sonnet 4.5
right now
82.4
current score
~anthropic
Anthropic
| Metric | Anthropic Claude Sonnet Latest | Claude Sonnet 4.5 | Winner |
|---|---|---|---|
| Overall Score | 40 | 82 | Claude Sonnet 4.5 |
| Rank | #196 | #30 | Claude Sonnet 4.5 |
| Quality Rank | #196 | #30 | Claude Sonnet 4.5 |
| Adoption Rank | #196 | #30 | Claude Sonnet 4.5 |
| Parameters | -- | -- | -- |
| Context Window | 1000K | 1000K | -- |
| Pricing | $3.00/$15.00/M | $3.00/$15.00/M | -- |
| Signal Scores | |||
| Capabilities | 100 | 100 | Anthropic Claude Sonnet Latest |
| Pricing | 85 | 85 | Anthropic Claude Sonnet Latest |
| Context window size | 95 | 95 | Anthropic Claude Sonnet Latest |
| Recency | 100 | 92 | Anthropic Claude Sonnet Latest |
| Output Capacity | 85 | 80 | Anthropic Claude Sonnet Latest |
| Benchmarks | -- | 82 | Claude Sonnet 4.5 |
Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.
Scores 40/100 (rank #196), placing it in the top 33% of all 290 models tracked.
Scores 82/100 (rank #30), placing it in the top 90% of all 290 models tracked.
Claude Sonnet 4.5 has a 42-point advantage, which typically translates to noticeably stronger performance on complex reasoning, code generation, and multi-step tasks.
Both models are priced similarly, so the decision comes down to quality and features rather than cost.
Both models have comparable response speeds. For most applications, the latency difference is negligible.
When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.
Code generation & review
Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Suitable for user-facing chat with competitive response times. Anthropic Claude Sonnet Latest also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (1000K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($15.00/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (82/100) correlates with better nuance, coherence, and style in long-form content
Image understanding & OCR
Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly
Claude Sonnet 4.5 clearly outperforms Anthropic Claude Sonnet Latest with a significant 42.400000000000006-point lead. For most general use cases, Claude Sonnet 4.5 is the stronger choice. However, Anthropic Claude Sonnet Latest may still excel in niche scenarios.
Best for Quality
Anthropic Claude Sonnet Latest
Marginally better benchmark scores; both are excellent
Best for Cost
Anthropic Claude Sonnet Latest
0% lower pricing; better value at scale
Best for Reliability
Anthropic Claude Sonnet Latest
Higher uptime and faster response speeds
Best for Prototyping
Anthropic Claude Sonnet Latest
Stronger community support and better developer experience
Best for Production
Anthropic Claude Sonnet Latest
Wider enterprise adoption and proven at scale
by ~anthropic
| Capability | Anthropic Claude Sonnet Latest | Claude Sonnet 4.5 |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Search | ||
| Image Output |
~anthropic
Anthropic
Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.
| Parameter | Anthropic Claude Sonnet Latest | Claude Sonnet 4.5 |
|---|---|---|
| Context Window | 1M | 1M |
| Max Output Tokens | 128,000 | 64,000 |
| Open Source | No | No |
| Created | Apr 27, 2026 | Sep 29, 2025 |