How much does Kimi K3 cost per million tokens?

Kimi K3 costs $0.684 per million input tokens and $10 per million output tokens at list price, and $0.684 per million cached input tokens.

What is the context window of Kimi K3?

Kimi K3 accepts up to 1,048,576 tokens of context and returns up to 943,718 output tokens.

How much do 1,000 chat messages cost with Kimi K3?

About $5.68, assuming 1,000 input + 500 output tokens per message.

Is there a cheaper alternative to Kimi K3?

In the same price range, OpenAI GPT-6 Luna Pro ($0.1 / $0.5), OpenAI GPT-6 Luna ($0.1 / $0.5), SpaceXAI Grok 4.7 ($2 / $6) cost less per token. Quality differs: test on your own prompts.

Where can I buy MoonshotAI API credits for less?

Discount credit books resell OpenRouter usage below face value within their depth, OpenRouter adds a 5.5% card fee, and MoonshotAI sells its own credits at face value. The live table on this page ranks them for $100 of usage.

MoonshotAI · live price

Kimi K3 API pricing

Kimi K3 is a 2.8T parameter open-weight multimodal reasoning model from Moonshot AI. It is suited for complex coding, knowledge work, and long-horizon agentic workflows, and is particularly strong at...

Mid-range ($1–5 per 1M)Tool callingReasoningimage inputvideo input

Input: $0.684; per 1M tokens
Output: $10; per 1M tokens
Cached input: $0.684; per 1M tokens
Context: 1.0M; 944K max output

List price from OpenRouter, which passes MoonshotAI's price through without markup. Refreshed hourly. Released July 16, 2026. Model id moonshotai/kimi-k3.

What Kimi K3 costs in practice

At list price, before any batch or caching discount.

1,000 chat messages

$5.68

1,000 input + 500 output tokens each

1,000 RAG questions

$10.48

8,000 input + 500 output tokens each

100 coding-agent steps

$4.05

30,000 input + 2,000 output tokens each, no caching

Kimi K3 price history

No price change since we started tracking on 2026-10-01. We record prices daily; changes will show here.

Kimi K3 price by host

Relace serves it below list price right now. Route to it to pay less on every token.

Relace$0.68 in · $10 out · 1.0M ctx · 98.7% uptime 24h
Morph$2.40 in · $11.08 out · 1.0M ctx · 95.4% uptime 24h
InferenceNet$1.69 in · $13 out · 1.0M ctx · 99.7% uptime 24h
Makora$2.04 in · $12.75 out · 1.0M ctx · 98.3% uptime 24h
Phala$2.55 in · $12.75 out · 1.0M ctx · 71.2% uptime 24h
Wafer$1.44 in · $14 out · 1.0M ctx · 99.8% uptime 24h
DigitalOcean$2.55 in · $12.95 out · 1.0M ctx · 99.6% uptime 24h
Sail Research$2.80 in · $14 out · 1.0M ctx · 98.6% uptime 24h
DeepInfra$2.85 in · $14.25 out · 1.0M ctx · 98.5% uptime 24h
Decart$3 in · $15 out · 1.0M ctx · 57.8% uptime 24h
AkashML$3 in · $15 out · 1.0M ctx · 99.0% uptime 24h
Chutes$3 in · $15 out · 1.0M ctx · 87.7% uptime 24h
Parasail$3 in · $15 out · 1.0M ctx · 98.6% uptime 24h
Modal$3 in · $15 out · 1.0M ctx · 99.6% uptime 24h
Together$3 in · $15 out · 1.0M ctx · 98.1% uptime 24h
Fireworks$3 in · $15 out · 1.0M ctx · 99.7% uptime 24h
BaseTen$3 in · $15 out · 1.0M ctx · 98.6% uptime 24h
Moonshot AI$3 in · $15 out · 1.0M ctx · 99.4% uptime 24h
Alibaba$3.45 in · $17.25 out · 1.0M ctx · 87.8% uptime 24h

Where to buy MoonshotAI credits for less

Kimi K3 costs the same per token everywhere it's sold through OpenRouter. What changes is the price of the credits. Live quotes for $100 of usage:

#	Where you buy	You payYou pay for $100.00 of usage	vs list price	Price source
1	OrbioCardCheapest right now Credits from a discount book, plus a 5% platform fee and card processing, both included in the quote.	$85.10 incl. $2.60 card processing	-14.9%	live quote
2	smaaartCard Credits from a discount book, plus a 5% platform fee on face value. Card processing and taxes shown at checkout.	$95.00 + card processing and tax at checkout (not in this number)	-5.0%	live quote
3	Direct from the labCard Prepaid credits at face value (OpenAI, Anthropic, Google…). Taxes may apply.	$100.00 no top-up fee	list price	face value
4	OpenRouterCrypto 5% on crypto purchases. No markup on model prices.	$105.00 fees included	+5.0%	published fee
5	OpenRouterCard 5.5% on card purchases, $0.80 minimum. No markup on model prices.	$105.50 fees included	+5.5%	published fee

Disclosure: this site is run by the team behind smaaart, one of the options compared. Tables are ranked by price only, from live quotes and published fees, including when smaaart isn't first. How we compare

Kimi K3 cost calculator

Enter your monthly tokens to price your own usage.

Model$0.684 in / $10.00 out per 1M tokens · list price, liveInput tokens / month (millions)Output tokens / month (millions)

Usage at list price$134.23/ month(quotes below are for $134.00: purchases run from $5.00 to $10,000.00)

Cheaper alternatives to Kimi K3

Other labs' models in the same price range or the one below, cheaper per token.

Model	Input / 1M	Output / 1M	Blended 3:1	Context
OpenAI: GPT-6 Luna Pro	$0.1	$0.5	$0.2	1.1M
OpenAI: GPT-6 Luna	$0.1	$0.5	$0.2	1.1M
SpaceXAI: Grok 4.7	$2	$6	$3	500K
Qwen: Qwen3.8 Omni Flash	$0.15	$0.47	$0.23	1M
Z.ai: GLM 5.3 FlashX	$0.37	$1.25	$0.59	1.0M
DeepSeek: DeepSeek V4.1 Flash	$0.03	$0.5	$0.147	1.0M

Other MoonshotAI models

Model	Input / 1M	Output / 1M	Blended 3:1	Context
Kimi K2.7 Code	$0.671	$3.35	$1.34	262K
Kimi K2.6	$0.434	$1.83	$0.783	262K
Kimi K2.5	$0.45	$2.25	$0.9	262K
Kimi K2 Thinking	$0.6	$2.50	$1.07	262K
Kimi K2 0905	$0.6	$2.50	$1.07	262K
Kimi K2 0711	$0.57	$2.30	$1	131K

All MoonshotAI API prices