MoonshotAI: Kimi K3.1 Pro vs Moonshot Kimi K2.5 (Latest 2026 Flagship): Live Promos, Pricing, Hidden Fees & Latency
MoonshotAI: Kimi K3.1 Pro (moonshotai/kimi-k3.1-pro) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for MoonshotAI: Kimi K3.1 Pro: Activate ephemeral prefix caching to slash input costs by 90% (down to 0.2/1M) or route via asynchronous Batch API for 50% off standard token rates.
Moonshot Kimi K2.5 (Latest 2026 Flagship) (moonshotai/kimi-k2.5) 2026 Q4 Developer Promotion & Volume Credits
Official 2026 Q4 promotion for Moonshot Kimi K2.5 (Latest 2026 Flagship): Activate ephemeral prefix caching to slash input costs by 90% (down to 0.055/1M) or route via asynchronous Batch API for 50% off standard token rates.
In Etuki October 2026 FinOps telemetry comparing MoonshotAI: Kimi K3.1 Pro (API ID: moonshotai/kimi-k3.1-pro) vs Moonshot Kimi K2.5 (Latest 2026 Flagship) (API ID: moonshotai/kimi-k2.5), Moonshot Kimi K2.5 (Latest 2026 Flagship) offers lower standard input pricing at $0.55/1M tokens ($2.2/1M output), while Moonshot Kimi K2.5 (Latest 2026 Flagship) leads in cached prefix economics at $0.055/1M tokens (90% discount). MoonshotAI: Kimi K3.1 Pro achieves a 0ms faster P90 time-to-first-token latency (195ms vs 195ms).
Gateway-synced rate ($2/$10 per 1M, flat 1049K window). Verify upstream provider cache TTL and regional routing before high-volume batch runs.
Enable Prompt Context Caching & Batch API to reduce repeated system prompt input token burn by 50%-97.5%.
| Specification / FinOps Dimension | MoonshotAI: Kimi K3.1 Pro | Moonshot Kimi K2.5 (Latest 2026 Flagship) | Verified Advantage |
|---|---|---|---|
| Official Vendor API ID | moonshotai/kimi-k3.1-pro | moonshotai/kimi-k2.5 | Pinned Snapshot IDs |
| Standard Input / Output (per 1M) | $2 / $10 | $0.55 / $2.2 | Moonshot Kimi K2.5 (Latest 2026 Flagship) |
| Cache Read Price (per 1M) | $0.2/1M (90% Off) | $0.055/1M (90% Off) | Moonshot Kimi K2.5 (Latest 2026 Flagship) |
| Context Window / Max Output | 1049K In / 64K Out | 256K In / 128K Out | Moonshot Kimi K2.5 (Latest 2026 Flagship) |
| P90 First-Token / Edge Latency | 195ms | 195ms | MoonshotAI: Kimi K3.1 Pro (-0ms) |
MoonshotAI: Kimi K3.1 Pro (moonshotai/kimi-k3.1-pro): OpenRouter gateway-synced model at $2/1M input, $10/1M output, $0.2/1M cached input (1049K context window).
Moonshot AI latest flagship 1T MoE coding & agentic reasoning model ($0.55/$2.20 per 1M, $0.055 cache read [90% off], 256K 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 MoonshotAI: Kimi K3.1 Pro to Moonshot Kimi K2.5 (Latest 2026 Flagship)
Moonshot AI latest flagship 1T MoE coding & agentic reasoning model ($0.55/$2.20 per 1M, $0.055 cache read [90% off], 256K context window). Verified P90 latency of 195ms.