Zhipu Glm 4 Air 250414 vs Mistral AI Codestral 2405: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Zhipu Glm 4 Air 250414 (zhipuai/glm-4-air-250414) vs Mistral AI Codestral 2405 (mistralai/codestral-2405). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
Zhipu Glm 4 Air 250414 (zhipuai/glm-4-air-250414) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Zhipu Glm 4 Air 250414: Activate ephemeral prefix caching to slash input costs by 90% (down to 0.01/1M) or route via asynchronous Batch API for 50% off standard token rates.
Mistral AI Codestral 2405 (mistralai/codestral-2405) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Mistral AI Codestral 2405: Activate ephemeral prefix caching to slash input costs by 90% (down to 0.02/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing Zhipu Glm 4 Air 250414 (API ID: zhipuai/glm-4-air-250414) vs Mistral AI Codestral 2405 (API ID: mistralai/codestral-2405), Zhipu Glm 4 Air 250414 offers lower standard input pricing at $0.1/1M tokens ($0.3/1M output), while Zhipu Glm 4 Air 250414 leads in cached prefix economics at $0.01/1M tokens (90% discount). Zhipu Glm 4 Air 250414 achieves a 0ms faster P90 time-to-first-token latency (195ms vs 195ms).
Gateway-synced rate ($0.1/$0.3 per 1M, flat 128K window). Verify upstream provider cache TTL and regional routing before high-volume batch runs.
Gateway-synced rate ($0.2/$0.6 per 1M, flat 32K window). Verify upstream provider cache TTL and regional routing before high-volume batch runs.
| Specification / FinOps Dimension | Zhipu Glm 4 Air 250414 | Mistral AI Codestral 2405 | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | zhipuai/glm-4-air-250414 | mistralai/codestral-2405 | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $0.1 / $0.3 | $0.2 / $0.6 | Zhipu Glm 4 Air 250414 |
| Cache Read Price (per 1M) | $0.01/1M (90% Off) | $0.02/1M (90% Off) | Zhipu Glm 4 Air 250414 |
| Context Window / Max Output | 128K In / 64K Out | 32K In / 64K Out | Zhipu Glm 4 Air 250414 |
| P90 First-Token / Edge Latency | 195ms | 195ms | Zhipu Glm 4 Air 250414 (-0ms) |
Zhipu Glm 4 Air 250414 (zhipuai/glm-4-air-250414): OpenRouter gateway-synced model at $0.1/1M input, $0.3/1M output, $0.01/1M cached input (128K context window).
Mistral AI Codestral 2405 (mistralai/codestral-2405): OpenRouter gateway-synced model at $0.2/1M input, $0.6/1M output, $0.02/1M cached input (32K context window).
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 Zhipu Glm 4 Air 250414 to Mistral AI Codestral 2405
Mistral AI Codestral 2405 (mistralai/codestral-2405): OpenRouter gateway-synced model at $0.2/1M input, $0.6/1M output, $0.02/1M cached input (32K context window). Verified P90 latency of 195ms.