Anthropic Claude Sonnet Latest vs Step 3.5 Flash
How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Anthropic Claude Sonnet Latest and Step 3.5 Flash.
Anthropic Claude Sonnet Latest
This model always redirects to the latest model in the Anthropic Claude Sonnet family.
Step 3.5 Flash
Step 3.5 Flash is StepFun's most capable open-source foundation model. Built on a sparse Mixture of Experts (MoE) architecture, it selectively activates only 11B of its 196B parameters per token....
Technical Specifications
| Specification | Anthropic Claude Sonnet Latest | Step 3.5 Flash |
|---|---|---|
| Provider | Anthropic | StepFun |
| Context Window | 1,000,000 tokens | 262,144 tokens |
| Agent Suitability | N/A | N/A |
| Time to First Token (TTFT) | N/A | N/A |
| Deployment Model | managed api | managed api |
| Production Stability | beta | stable |
| API Available | Yes | Yes |
| Released Date | 2026-04-27 | 2026-01-29 |
API Pricing Comparison
Input Price per Million Tokens
Anthropic Claude Sonnet Latest
$2.00
Step 3.5 Flash
$0.10
Output Price per Million Tokens
Anthropic Claude Sonnet Latest
$10.00
Step 3.5 Flash
$0.30
Want to test both models live?
Run side-by-side prompt prompts in our dynamic Sandbox. Check execution speeds, latency metrics, and compute actual costs in real-time.
Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
Anthropic Claude Sonnet Latest Quirks & Gotchas
No developer gotchas reported.
Step 3.5 Flash Quirks & Gotchas
No developer gotchas reported.