Mistral: Mistral Medium 3.1 (batch) vs Z.ai: GLM 5.3 Flash (batch): Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Mistral: Mistral Medium 3.1 (batch) (mistralai/mistral-medium-3.1:batch) vs Z.ai: GLM 5.3 Flash (batch) (z-ai/glm-5.3-flash:batch). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
Mistral: Mistral Medium 3.1 (batch) (mistralai/mistral-medium-3.1:batch) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Mistral: Mistral Medium 3.1 (batch): Activate ephemeral prefix caching to slash input costs by 50% (down to $0.1/1M) or route via asynchronous Batch API for 50% off standard token rates.
Z.ai: GLM 5.3 Flash (batch) (z-ai/glm-5.3-flash:batch) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Z.ai: GLM 5.3 Flash (batch): Activate ephemeral prefix caching to slash input costs by 50% (down to $0.03/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing Mistral: Mistral Medium 3.1 (batch) (API ID: mistralai/mistral-medium-3.1:batch) vs Z.ai: GLM 5.3 Flash (batch) (API ID: z-ai/glm-5.3-flash:batch), Z.ai: GLM 5.3 Flash (batch) offers lower standard input pricing at $0.06/1M tokens ($0.2/1M output), while Z.ai: GLM 5.3 Flash (batch) leads in cached prefix economics at $0.03/1M tokens (50% discount). Mistral: Mistral Medium 3.1 (batch) 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 | Mistral: Mistral Medium 3.1 (batch) | Z.ai: GLM 5.3 Flash (batch) | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | mistralai/mistral-medium-3.1:batch | z-ai/glm-5.3-flash:batch | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.2 / $1 | $0.06 / $0.2 | Z.ai: GLM 5.3 Flash (batch) |
| Cache Read Price (per 1M) | $0.1/1M (50% Off) | $0.03/1M (50% Off) | Z.ai: GLM 5.3 Flash (batch) |
| Context Window / Max Output | 128K In / 102K Out | 1024K In / 128K Out | Z.ai: GLM 5.3 Flash (batch) |
| P90 First-Token / Edge Latency | 280ms | 280ms | Mistral: Mistral Medium 3.1 (batch) (-0ms) |
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
GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks. Its hybrid sparse and linear attention architecture maintains
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 Mistral: Mistral Medium 3.1 (batch) to Z.ai: GLM 5.3 Flash (batch)
GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks. Its hybrid sparse and linear attention architecture maintains Verified P90 latency of 280ms.