DeepSeek: DeepSeek V4 Flash 0731 vs Mistral: Mistral Medium 3.1: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing DeepSeek: DeepSeek V4 Flash 0731 (deepseek/deepseek-v4-flash-0731) vs Mistral: Mistral Medium 3.1 (mistralai/mistral-medium-3.1). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
DeepSeek: DeepSeek V4 Flash 0731 (deepseek/deepseek-v4-flash-0731) — Automatic Disk KV Cache ($0.008/1M) & Off-Peak Promo
DeepSeek-V4 Pro (1.6T MoE) automatically caches repeated 64-token prompt prefixes on NVMe storage at $0.07/1M input tokens (50% off $0.14 base) with zero code changes required, plus off-peak UTC scheduling discounts.
Mistral: Mistral Medium 3.1 (mistralai/mistral-medium-3.1) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Mistral: Mistral Medium 3.1: Activate ephemeral prefix caching to slash input costs by 50% (down to $0.2/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing DeepSeek: DeepSeek V4 Flash 0731 (API ID: deepseek/deepseek-v4-flash-0731) vs Mistral: Mistral Medium 3.1 (API ID: mistralai/mistral-medium-3.1), DeepSeek: DeepSeek V4 Flash 0731 offers lower standard input pricing at $0.016/1M tokens ($0.64/1M output), while DeepSeek: DeepSeek V4 Flash 0731 leads in cached prefix economics at $0.008/1M tokens (50% discount). DeepSeek: DeepSeek V4 Flash 0731 achieves a 0ms faster P90 time-to-first-token latency (280ms vs 280ms).
Auto-discovered via live global telemetry registry.
Auto-discovered via live global telemetry registry.
| Specification / FinOps Dimension | DeepSeek: DeepSeek V4 Flash 0731 | Mistral: Mistral Medium 3.1 | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | deepseek/deepseek-v4-flash-0731 | mistralai/mistral-medium-3.1 | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.016 / $0.64 | $0.4 / $2 | DeepSeek: DeepSeek V4 Flash 0731 |
| Cache Read Price (per 1M) | $0.008/1M (50% Off) | $0.2/1M (50% Off) | DeepSeek: DeepSeek V4 Flash 0731 |
| Context Window / Max Output | 1024K In / 922K Out | 128K In / 102K Out | DeepSeek: DeepSeek V4 Flash 0731 |
| P90 First-Token / Edge Latency | 280ms | 280ms | DeepSeek: DeepSeek V4 Flash 0731 (-0ms) |
DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total. This re-post-trained revision is suited for coding, reasoni
Mistral Medium 3.1 is an updated version of Mistral Medium 3, which is a high-performance enterprise-grade language model designed to deliver frontier-level capabilities at signifi
Real-Time Stack Cost & Hidden-Fee Simulator (MAU / Token / Egress / GMV)
Calibrated with Reddit r/FinOps & r/devops telemetry: Includes Context Caching, Bandwidth Egress, and MoR Tax
🛰️Switch from DeepSeek: DeepSeek V4 Flash 0731 to Mistral: Mistral Medium 3.1
Mistral Medium 3.1 is an updated version of Mistral Medium 3, which is a high-performance enterprise-grade language model designed to deliver frontier-level capabilities at signifi Verified P90 latency of 280ms.