Kimi K3, Moonshot AI’s most capable model, is not listed in the Amazon Bedrock model catalog as of August 19, 2026. AWS currently offers two earlier Moonshot AI models — Kimi K2.5 and Kimi K2 Thinking — but K3 has no announced availability date on the platform.
Is Kimi K3 available on Amazon Bedrock?
Kimi K3 is not available on Amazon Bedrock as of August 19, 2026. The Bedrock model catalog lists exactly two Moonshot AI models: moonshotai.kimi-k2.5 (launched on Bedrock on January 27, 2026) and moonshot.kimi-k2-thinking (launched November 6, 2025). Neither the standard model listing nor the regional availability pages reference K3 in any form — no preview, no waitlist, no “coming soon” banner.
Amazon Bedrock’s third-party model onboarding follows a pattern: AWS requires production stability validation and compliance review before listing a model on its managed platform. DeepSeek R1 took approximately four months from its public release to Bedrock availability; Kimi K2.5 took roughly three months. There is no public statement from AWS or Moonshot AI on K3’s Bedrock timeline.
What Kimi models does Amazon Bedrock currently offer?
Amazon Bedrock currently offers two Moonshot AI models, both with 256K-token context windows:
| Spec | Kimi K2.5 (moonshotai.kimi-k2.5) | Kimi K2 Thinking (moonshot.kimi-k2-thinking) |
|---|---|---|
| Launch date on Bedrock | January 27, 2026 | November 6, 2025 |
| Context window | 256K tokens | 256K tokens |
| Max output tokens | 16K | 16K |
| Input modalities | Text + Image (3 MB max) | Text only |
| Chain-of-thought reasoning | Not built-in | Native reasoning mode |
| Supported APIs | Invoke, Converse, Chat Completions | Invoke, Converse, Chat Completions |
| Service tiers | Standard, Priority, Flex | Standard, Priority, Flex |
| Endpoints | bedrock-runtime, bedrock-mantle | bedrock-runtime, bedrock-mantle |
| Regions available | 11 (US, EU, APAC, SA) | 11 (US, EU, APAC, SA) |
Both models support response streaming, Guardrails, Flows, Agents, structured outputs, model evaluation, and prompt management through the bedrock-runtime endpoint. Neither supports Geo or Global cross-region inference — only in-region routing.
Which AWS regions support Kimi K2.5 and K2 Thinking?
Both Kimi models are available in the following 11 AWS regions as in-region inference:
| Region | Code |
|---|---|
| N. Virginia | us-east-1 |
| Ohio | us-east-2 |
| Oregon | us-west-2 |
| Stockholm | eu-north-1 |
| London | eu-west-2 |
| Tokyo | ap-northeast-1 |
| Mumbai | ap-south-1 |
| Sydney | ap-southeast-2 |
| Jakarta | ap-southeast-3 |
| Melbourne | ap-southeast-4 |
| São Paulo | sa-east-1 |
Kimi K2.5 is available in all 11 regions. Kimi K2 Thinking is available in the same 11 regions. Neither model supports Geo Cross-Region or Global Cross-Region inference routing.
How do you call Kimi K2.5 or K2 Thinking on Amazon Bedrock right now?
Three API paths exist for calling Kimi models on Amazon Bedrock today:
Via the Converse API (recommended for new applications):
import boto3
client = boto3.client('bedrock-runtime', region_name='us-east-1')
response = client.converse(
modelId='moonshotai.kimi-k2.5',
messages=[{
'role': 'user',
'content': [{'text': 'Explain vector quantization in 200 words.'}]
}]
)
print(response)Via the Chat Completions API (OpenAI-compatible):
from openai import OpenAI
client = OpenAI(
api_key="<your-bedrock-api-key>",
base_url="https://bedrock-mantle.us-east-1.api.aws/v1"
)
response = client.chat.completions.create(
model="moonshotai.kimi-k2.5",
messages=[{"role": "user", "content": "Explain vector quantization."}]
)For reasoning tasks, swap the model ID to moonshot.kimi-k2-thinking (note: the prefix is moonshot, not moonshotai, on the bedrock-runtime endpoint for this model).
Why is Kimi K3 not on Amazon Bedrock yet?
Amazon Bedrock has no public statement explaining K3’s absence. Based on the platform’s observed onboarding pattern, three factors contribute to delays for new third-party models:
- Production stability validation. AWS runs extended load testing and failure-mode analysis before adding a model to its managed catalog. Models with less than 8–12 weeks of production traffic on their native API tend to wait.
- Compliance and licensing review. Every Bedrock model requires an End User License Agreement published on Hugging Face or an equivalent public repository. Kimi K2.5’s license is at
huggingface.co/moonshotai/Kimi-K2.5/blob/main/LICENSE; K3’s equivalent may not be finalized. - Capacity procurement. AWS deploys inference capacity per-region before listing a model. For a model with K3’s parameter count, GPU allocation across 10+ regions requires procurement lead time.
None of these factors have been confirmed for K3 specifically. They are patterns observed across prior Bedrock model launches (DeepSeek, Qwen, Mistral).
How do you access Kimi K3 outside of Amazon Bedrock?
Kimi K3 is available directly through Moonshot AI’s own API at platform.moonshot.ai. Developers who need K3 today can use it there while waiting for Bedrock availability. The trade-off: no Guardrails integration, no Bedrock Agents, no consolidated AWS billing, and no in-region deployment guarantees that Bedrock provides.
What other models did Amazon Bedrock add in 2026?
Amazon Bedrock’s 2026 model additions show an accelerating pace of third-party onboarding:
| Provider | Models added in 2026 |
|---|---|
| Moonshot AI | Kimi K2.5 (Jan 2026) |
| DeepSeek | DeepSeek V3.2, DeepSeek V3.1 |
| xAI | Grok 4.3, Grok 4.6 |
| Z.AI | GLM 4.7, GLM 4.7 Flash, GLM 5 |
| Qwen | Qwen3 32B, Qwen3 235B, Qwen3 Coder 480B, Qwen3 Coder Next, Qwen3 VL 235B |
| MiniMax | MiniMax M2.5 |
| NVIDIA | Nemotron Nano 3 30B, Nemotron 3 Super 120B |
| OpenAI | GPT-5.5, GPT-5.4, GPT-5.6 Sol/Terra/Luna/Cyber |
Moonshot AI’s existing two-model presence on Bedrock and this expansion pattern suggest K3 is a question of when, not if.
Timeline — Kimi models on Amazon Bedrock
| Date | Event |
|---|---|
| November 6, 2025 | Kimi K2 Thinking launched on Amazon Bedrock (moonshot.kimi-k2-thinking) |
| January 27, 2026 | Kimi K2.5 launched on Amazon Bedrock (moonshotai.kimi-k2.5) |
| August 19, 2026 | Kimi K3 confirmed absent from Bedrock catalog — no announced timeline |
Sources
- Amazon Bedrock — Models at a Glance — full model catalog, verified August 19, 2026
- Kimi K2.5 Model Card on Bedrock — model ID, regions, launch date, API support
- Kimi K2 Thinking Model Card on Bedrock — model ID, regions, launch date, reasoning support
- Moonshot AI Platform Documentation — direct API access for Kimi models including K3
- Kimi K2.5 License (Hugging Face) — end-user license agreement
- Amazon Bedrock Pricing — per-token costs for all listed models
This piece is updated when Kimi K3 appears on Amazon Bedrock. Corrections: editorial@hypogray.com.