Grok 4.3 在 Amazon Bedrock 正式可用
Grok on Amazon Bedrock Jun 17, 2026 # Grok on Amazon Bedrock Grok models are now available via Amazon Bedrock. Read More
6 月 17 日，xAI 宣布 Grok 4.3 在 Amazon Bedrock 上全面可用。该模型在前沿模型中达成最低幻觉率，支持 100 万 token 上下文窗口，并提供可配置推理努力（none/low/medium/high）。在 Artificial Analysis Omniscience 基准排名第一，在 Tau2 Telecom 基准评估客服智能体真实工具调用性能排名第一，在 Vals AI Case Law 和 Corporate Finance 基准的复杂文档理解任务排名第一。定价为输入每百万 token 1.25 美元、输出每百万 token 2.50 美元，每美元智能度是其他前沿模型的 2–10 倍。
Grok 4.3 登陆 Bedrock，把极低幻觉率和可配置推理带给了 AWS 用户，价格也摆在了 Pareto 前沿，不过本质上是一次渠道扩展而非模型突破，企业开发者可以尝鲜。
Grok on Amazon Bedrock Leading Performance in Enterprise Capabilities & Pricing Build with Grok 4.3 on Amazon Bedrock
Today, we’re excited to announce that Grok 4.3 is now generally available on Amazon Bedrock.
Grok 4.3 achieves the lowest hallucination rate among frontier models, offers 1-million-token context window, and supports configurable reasoning efforts (none, low, medium, high). Now, Amazon Bedrock users can leverage the model through Bedrock’s secure and reliable inference engine.
Leading Performance in Enterprise
Grok 4.3 is one of the strongest models available today for building enterprise-ready AI agents:
- #1 on Artificial Analysis Omniscience benchmark*, achieving the lowest hallucination rate among frontier models.
- #1 on Artificial Analysis Tau2 Telecom benchmark*, which evaluates real-world tool-calling performance in customer support agent scenarios.
- #1 on Vals AI Case Law and Corporate Finance benchmarks, which measure Grok's capabilities in complex document understanding tasks.
* In comparison to major frontier labs
Capabilities & Pricing
Grok 4.3 sits on the Pareto frontier for intelligence versus cost, delivering 2-10x more intelligence per dollar than other frontier models.
- Input: $1.25 per 1 million tokens
- Output: $2.50 per 1 million tokens
It features a 1 million context window that handles extremely long documents and codebases with ease. Developers can also configure reasoning: Use none for maximum speed on simple requests, or low / medium / high to scale reasoning effort to the difficulty of the problem.
Build with Grok 4.3 on Amazon Bedrock
Grok 4.3 is now available to all developers in supported AWS Regions.
curl https://bedrock-mantle.us-west-2.api.aws/openai/v1/responses \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $BEDROCK_API_KEY" \
-d '{
"model": "grok-4.3",
"input": "What is the meaning of life?",
"reasoning": {
"effort": "low"
},
"include": ["reasoning.encrypted_content"]
}'
To get started, please visit the Grok on Amazon Bedrock documentation. We're excited to see what you build!
来源：xAI：News（网页） · x.ai