Pricing change·Apr 27 → May 4, 2026·Week 19, 2026·AI & Machine Learning
X debuts grok-4.3 at $1.25/$2.50 per 1M tokens, slashes grok-4.20 rates
What changed
Price decrease
grok-4.20-reasoning and grok-4.20-non-reasoning prices cut: text input $2.00→$1.25/1M tokens (-37.5%), output $6.00→$2.50/1M tokens (-58.3%).
New plan
New flagship model grok-4.3 added to main pricing at $1.25/1M input and $2.50/1M output tokens with 1M context window, replacing grok-4.20 as featured model.
Before and after
Apr 27, 2026 vs May 4, 2026Pulse.
100%
Change 1 of 2 · price decreased
grok-4.20-reasoning and grok-4.20-non-reasoning prices cut: text input $2.00→$1.25/1M tokens (-37.5%), output $6.00→$2.50/1M tokens (-58.3%).
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See the before/after screenshots and every marked-up change.
Week 8, 2026 · X adds real-time voice AI, drops structured outputs from APIX updates capabilities: New video generation feature added with audio. · Week 21, 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