MoonshotAI: Kimi K3.1 Pro (cheapest-provider) (Reasoning) is a 1,048,576-token model served on Composite at $0.297 per million tokens in and $10.5 per million tokens out.
Supported — cached input is billed at the provider's cache rate, on credits and plans alike
Thinking
Optional - see "MoonshotAI: Kimi K3.1 Pro (cheapest-provider) (Reasoning) (Reasoning)" in the catalog to turn it on by default
Moderated
No
Cost on a monthly plan
About 10 plan credits per typical call (8k in, 1k out)
Routing endpoints
1
Use MoonshotAI: Kimi K3.1 Pro (cheapest-provider) (Reasoning) in JanitorAI or SillyTavern
Make a Composite API key and type moonshotai/kimi-k3.1-pro:cheapest-provider-reasoning as the model name. JanitorAI takes the full URL https://composite.lucidity.sh/v1/chat/completions; SillyTavern, ChubAI, Agnai and RisuAI take https://composite.lucidity.sh/v1. It runs on credits, a plan, or your own provider key.
This model has not carried enough traffic on Composite yet to publish a success rate, a latency figure or a traffic rank. The numbers appear here once it has.
Pricing
$0.297 per million tokens input · $10.5 per million tokens output
Credits pay the provider’s price plus 25%; cache hits cost less.
On a monthly plan, a typical call (8k tokens in, 1k out) uses about 10 plan credits, at the provider's own price.
Provider
Relace
Roleplay fit
Kimi models are tuned for long-context recall, which helps a roleplay stay consistent with events from many messages earlier.
Context behavior
With a 1,048,576-token context window, it can hold a long-running roleplay or a full lorebook in memory without losing earlier plot details, so it suits multi-session campaigns and character cards with heavy backstory.
Cost for regular use
It is priced low enough for high-volume daily roleplay without the per-message cost adding up quickly.
From the provider
Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model and a post-trained successor to Kimi K3, with a 1M-token context window. It is built for long-horizon coding, 3D...