Packaging change·Oct 11 → Jan 5, 2026·Q4 2025·AI & Machine Learning
X Introduces New grok-4.1 Models with Enhanced Image Input Pricing and Tool Calling Features
What changed
Plan removed
grok-3 model removed from main pricing table
Feature added
Image Input pricing capability added to grok-4.1-fast models at $0.20/M tokens
Plan removed
grok-3-mini model removed from main pricing table
Feature change
Tool calling feature enhanced with Agent Tools API supporting both server-side and client-side tool calling
New plan
grok-4-1-fast-reasoning model added: $0.20/M tokens input, $0.50/M tokens output, 2M context
New plan
grok-4-1-fast-non-reasoning model added: $0.20/M tokens input, $0.50/M tokens output, 2M context
Before and after
Oct 11, 2025 vs Jan 5, 2026Pulse.
100%
Change 1 of 6 · plan removed
grok-3 model removed from main pricing table
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Q3 2025 · X Introduces Grok-4 Flagship Model with 256k Context Window and New Enterprise FeaturesX adds real-time voice AI, drops structured outputs from API · Week 8, 2026
More from X
Full history →- Week 35, 2026·improvedX drops grok-4.5, adds Imagine image/video models and free Playground perk
- Week 32, 2026·packagingx.ai: Speech-to-Speech Voice API pricing changed from flat rate to starting-at
- Week 29, 2026·packagingX swaps flagship model — grok-4.5 costs more, sees less, drops coding model
- Q2 2026·improvedxAI: Grok lineup replaced (grok-4.3, grok-build-0.1), smaller context windows
- Week 22, 2026·packagingX launches Grok coding model and image/video/voice API pricing