Writer Palmyra X 004 vs Mistral AI Mathstral 7B V0.1: Live Promos, Pricing, Hidden Fees & Latency
Verified 2026 FinOps benchmark comparing Writer Palmyra X 004 (writer/palmyra-x-004) vs Mistral AI Mathstral 7B V0.1 (mistralai/mathstral-7b-v0.1). Simulate cache read multipliers, context cliffs, MAU bills, and P90 latency.
Writer Palmyra X 004 (writer/palmyra-x-004) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Writer Palmyra X 004: Activate ephemeral prefix caching to slash input costs by 90% (down to 0.15/1M) or route via asynchronous Batch API for 50% off standard token rates.
Mistral AI Mathstral 7B V0.1 (mistralai/mathstral-7b-v0.1) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Mistral AI Mathstral 7B V0.1: Activate ephemeral prefix caching to slash input costs by 90% (down to 0.004/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing Writer Palmyra X 004 (API ID: writer/palmyra-x-004) vs Mistral AI Mathstral 7B V0.1 (API ID: mistralai/mathstral-7b-v0.1), Mistral AI Mathstral 7B V0.1 offers lower standard input pricing at $0.04/1M tokens ($0.08/1M output), while Mistral AI Mathstral 7B V0.1 leads in cached prefix economics at $0.004/1M tokens (90% discount). Writer Palmyra X 004 achieves a 0ms faster P90 time-to-first-token latency (195ms vs 195ms).
Gateway-synced rate ($1.5/$4.5 per 1M, flat 128K window). Verify upstream provider cache TTL and regional routing before high-volume batch runs.
Gateway-synced rate ($0.04/$0.08 per 1M, flat 32K window). Verify upstream provider cache TTL and regional routing before high-volume batch runs.
| Specification / FinOps Dimension | Writer Palmyra X 004 | Mistral AI Mathstral 7B V0.1 | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | writer/palmyra-x-004 | mistralai/mathstral-7b-v0.1 | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $1.5 / $4.5 | $0.04 / $0.08 | Mistral AI Mathstral 7B V0.1 |
| Cache Read Price (per 1M) | $0.15/1M (90% Off) | $0.004/1M (90% Off) | Mistral AI Mathstral 7B V0.1 |
| Context Window / Max Output | 128K In / 64K Out | 32K In / 64K Out | Writer Palmyra X 004 |
| P90 First-Token / Edge Latency | 195ms | 195ms | Writer Palmyra X 004 (-0ms) |
Writer Palmyra X 004 (writer/palmyra-x-004): OpenRouter gateway-synced model at $1.5/1M input, $4.5/1M output, $0.15/1M cached input (128K context window).
Mistral AI Mathstral 7B V0.1 (mistralai/mathstral-7b-v0.1): OpenRouter gateway-synced model at $0.04/1M input, $0.08/1M output, $0.004/1M 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 Writer Palmyra X 004 to Mistral AI Mathstral 7B V0.1
Mistral AI Mathstral 7B V0.1 (mistralai/mathstral-7b-v0.1): OpenRouter gateway-synced model at $0.04/1M input, $0.08/1M output, $0.004/1M cached input (32K context window). Verified P90 latency of 195ms.