Mistral Small 3 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 Mistral Small 3 and Step 3.5 Flash.
Mistral Small 3
Mistral Small 3 is a 24B-parameter language model optimized for low-latency performance across common AI tasks. Released under the Apache 2.0 license, it features both pre-trained and instruction-tuned versions designed...
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 | Mistral Small 3 | Step 3.5 Flash |
|---|---|---|
| Provider | Mistral | StepFun |
| Context Window | 32,768 tokens | 262,144 tokens |
| Agent Suitability | 84/100 | N/A |
| Time to First Token (TTFT) | 120 ms | N/A |
| Deployment Model | managed api | managed api |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2025-01-30 | 2026-01-29 |
API Pricing Comparison
Input Price per Million Tokens
Mistral Small 3
$0.07
Step 3.5 Flash
$0.10
Output Price per Million Tokens
Mistral Small 3
$0.20
Step 3.5 Flash
$0.30
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Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
Mistral Small 3 Quirks & Gotchas
- ▸Fastest TTFT at lowest cost — ideal for high-volume classification
- ▸Not designed for complex reasoning — route multi-step tasks to Mistral Large 3
Step 3.5 Flash Quirks & Gotchas
No developer gotchas reported.