Grok 4.5: API 开放
有证据支持7条参考链接
英文原文

xAI
USD / 百万 token
| 输入长度 | 输入 | 输出 | 缓存输入 |
|---|---|---|---|
| 输入 ≤ 199,999 token | $2.00 | $6.00 | $0.30 |
| 输入 > 199,999 token | $4.00 | $12.00 | $0.60 |
阈值包括所有输入令牌,也包括缓存命中的令牌。
计算使用成本Grok 4.5 is available today in Grok Build, in Cursor on all plans, and from the SpaceXSI console
Grok 4.5, our most intelligent model yet, is now on grok.com, X, iOS, and Android
Grok 4.5, our smartest coding model, is now available in GitHub Copilot
": "Balanced effort with standard implementation and testing" }, { "value": "low", "label": "Low Effort", "description": "Quick, fast implementations" } ] }, { "id": "grok-4.5", "model": "grok-4.5", "model_family": "xai", "name": "Grok 4.5", "context_window": 500000, "api_backend": "responses", "supports_backend_search": false, "system_prompt_label": "Grok 4.5", "supports_reasoning_effort": true, "reasoning_effort": "high", "auto_compact_threshold_percent": 80, "compaction_at_tokens": true, "compactions_remaining": 1, "reasoning_efforts": [ { "value": "high", "label": "High Effort", "description": "Highest implementation quality with extensive reasoning", "default": true }
Grok 4.5 is now available in the API console for EU users
⚡️ Grok 4.6 is out It’s a solid jump over Grok 4.5 in agents, coding and long project work. On Artificial Analysis, it’s already matching GPT 5.6 Sol. API pricing is $2 input and $6 output, versus $5 and $30 for Sol.
Elon Musk open-sourced Grok Build The terminal agent stack is now open source: file reading, context gathering, command execution, plugins, and subagents. The Grok 4.5 weights are not included, the model itself is still closed. Now anyone can see how Grok works with code, fork the agent, and plug in a local model. xAI basically handed the community a build-your-own Claude Code kit.
Grok 4.5: a new competitor to GPT and Claude Posting this a little late, but I prepared something interesting. Grok 4.5 is temporarily available to test for free in Grok Build and Cursor. The model runs at around 80 tokens per second, supports a context window of up to 500,000 tokens, and costs $2 per million input tokens and $6 per million output tokens. According to Musk, Grok 4.5 was trained from scratch on SpaceXAI’s own foundation and is not built on top of Kimi like Composer. In terms of quality, Grok 4.5 comes close to GPT-5.6 Terra, while its pricing is closer to Luna. Among Anthropic models, it sits between Haiku and Sonnet, making it especially attractive in terms of price-to-pe
Grok 4.5 是 xAI 的 AI 模型,于 2026-07-08 发布。 上下文窗口为500,000 token。 每百万 token 的价格为:输入 $2.00 (输入 ≤ 199,999 token); $4.00 (输入 > 199,999 token),输出 $6.00 (输入 ≤ 199,999 token); $12.00 (输入 > 199,999 token)。
上下文窗口为500,000 token。
每百万 token 的价格为:输入 $2.00 (输入 ≤ 199,999 token); $4.00 (输入 > 199,999 token),输出 $6.00 (输入 ≤ 199,999 token); $12.00 (输入 > 199,999 token)。 缓存输入价格为每百万 token $0.30 (输入 ≤ 199,999 token); $0.60 (输入 > 199,999 token)。
2026-07-08。