Kimi K2 Thinking vs Mistral Medium 3.5
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 Kimi K2 Thinking and Mistral Medium 3.5.
Kimi K2 Thinking
Kimi K2 Thinking is Moonshot AI’s most advanced open reasoning model to date, extending the K2 series into agentic, long-horizon reasoning. Built on the trillion-parameter Mixture-of-Experts (MoE) architecture introduced in...
Mistral Medium 3.5
Mistral Medium 3.5 is a dense 128B instruction-following model from Mistral AI. It supports text and image inputs with text output, and is designed for agentic workflows, coding, and complex...
Technical Specifications
| Specification | Kimi K2 Thinking | Mistral Medium 3.5 |
|---|---|---|
| Provider | Moonshot AI | Mistral |
| Context Window | 262,144 tokens | 262,144 tokens |
| Agent Suitability | N/A | N/A |
| Time to First Token (TTFT) | N/A | N/A |
| Deployment Model | managed api | self hostable |
| Production Stability | stable | stable |
| API Available | Yes | Yes |
| Released Date | 2025-11-06 | 2026-04-30 |
API Pricing Comparison
Input Price per Million Tokens
Kimi K2 Thinking
$0.60
Mistral Medium 3.5
$1.50
Output Price per Million Tokens
Kimi K2 Thinking
$2.50
Mistral Medium 3.5
$7.50
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.
Kimi K2 Thinking Quirks & Gotchas
No developer gotchas reported.
Mistral Medium 3.5 Quirks & Gotchas
No developer gotchas reported.