DeepSeek: DeepSeek V3.1 Terminus vs Mistral: Mistral Large 3 2512: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing DeepSeek: DeepSeek V3.1 Terminus (deepseek/deepseek-v3.1-terminus) vs Mistral: Mistral Large 3 2512 (mistralai/mistral-large-2512). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
DeepSeek: DeepSeek V3.1 Terminus (deepseek/deepseek-v3.1-terminus) — Automatic Disk KV Cache ($0.135/1M) & 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 Large 3 2512 (mistralai/mistral-large-2512) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Mistral: Mistral Large 3 2512: Activate ephemeral prefix caching to slash input costs by 50% (down to $0.25/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing DeepSeek: DeepSeek V3.1 Terminus (API ID: deepseek/deepseek-v3.1-terminus) vs Mistral: Mistral Large 3 2512 (API ID: mistralai/mistral-large-2512), DeepSeek: DeepSeek V3.1 Terminus offers lower standard input pricing at $0.27/1M tokens ($1/1M output), while DeepSeek: DeepSeek V3.1 Terminus leads in cached prefix economics at $0.135/1M tokens (50% discount). DeepSeek: DeepSeek V3.1 Terminus 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 V3.1 Terminus | Mistral: Mistral Large 3 2512 | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | deepseek/deepseek-v3.1-terminus | mistralai/mistral-large-2512 | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.27 / $1 | $0.5 / $1.5 | DeepSeek: DeepSeek V3.1 Terminus |
| Cache Read Price (per 1M) | $0.135/1M (50% Off) | $0.25/1M (50% Off) | DeepSeek: DeepSeek V3.1 Terminus |
| Context Window / Max Output | 160K In / 144K Out | 256K In / 205K Out | Mistral: Mistral Large 3 2512 |
| P90 First-Token / Edge Latency | 280ms | 280ms | DeepSeek: DeepSeek V3.1 Terminus (-0ms) |
DeepSeek-V3.1 Terminus is an update to [DeepSeek V3.1](/deepseek/deepseek-chat-v3.1) that maintains the model's original capabilities while addressing issues reported by users, inc
Mistral Large 3 2512 is Mistral’s most capable model to date, featuring a sparse mixture-of-experts architecture with 41B active parameters (675B total), and released under the Apa
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 V3.1 Terminus to Mistral: Mistral Large 3 2512
Mistral Large 3 2512 is Mistral’s most capable model to date, featuring a sparse mixture-of-experts architecture with 41B active parameters (675B total), and released under the Apa Verified P90 latency of 280ms.