Grok 4.5

Chronologie

1. 2026-07-08 · Disponibilité API · lien de référence
2. 2026-07-16 · Mise à jour du produit · lien de référence
3. 2026-07-22 · Mise à jour du produit · lien de référence
4. 2026-07-28 · Mise à jour du produit · lien de référence
5. 2026-07-17 · Disponibilité API (EU) · lien de référence

1. 2026-11-13T17:33:04.604Z · Liens de référence · xAI · official articles
   Extrait

   Grok 4.5 is available today in Grok Build, in Cursor on all plans, and from the SpaceXSI console

2. 2026-11-13T17:33:04.604Z · Liens de référence · xAI · official articles
   Extrait

   Grok 4.5, our most intelligent model yet, is now on grok.com, X, iOS, and Android

3. 2026-11-13T17:22:38.399Z · Liens de référence · xAI · official articles
   Extrait

   Grok 4.5, our smartest coding model, is now available in GitHub Copilot

4. 2026-11-13T17:16:57.056Z · Utilisation confirmée · xAI · official articles · Introducing Grok 4.6
5. 2026-11-05T17:47:58.156Z · Entrée du catalogue · GitHub · xai-org/grok-build · code
   Extrait

   ": "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 }

6. 2026-10-07T19:38:07.564Z · Liens de référence · xAI · release notes
   Extrait

   Grok 4.5 is now available in the API console for EU users

7. 2026-08-12T17:29:54.148Z · Publications d'Alex · Alex Getman
   Extrait

   ⚡️ 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.

8. 2026-07-15T21:37:21.344Z · Publications d'Alex · Alex Getman
   Extrait

   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.

9. 2026-07-10T16:34:15.332Z · Publications d'Alex · Alex Getman
   Extrait

   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

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Grok 4.5: Disponibilité API

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Grok 4.5: Disponibilité API

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