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Gemini 4 Is in Post-Training. Google Wants to Release It Early and Iterate Fast
Google DeepMind chief Koray Kavukcuoglu says Gemini 4 is in early post training and hopes to release an initial version well before the end of 2026, then improve it rapidly. The key test after launch will be whether Gemini 4 delivers competitive reasoning and coding at a cost users can justify.
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Key takeaways
- Google DeepMind chief Koray Kavukcuoglu says Gemini 4 is in early post training and hopes to release an initial version well before the end of 2026, then improve it rapidly.
- The key test after launch will be whether Gemini 4 delivers competitive reasoning and coding at a cost users can justify.
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openai.comCreate a landscape editorial hero image for this Studio Global article: What did new Google DeepMind chief Koray Kavukcuoglu say about Gemini 4’s post-training progress, planned early release and rapid-iteration. Article summary: Koray Kavukcuoglu said Gemini 4 is in the early stage of post-training and that he hopes to release an initial version “much earlier” than year-end, then improve it rapidly rather than wait for a single finished launch. . Topic tags: general, general web, user generated. Style: premium digital editorial illustration, source-backed research mood, clean composition, high detail, modern web publication hero. Use reference image context only for broad subject, composition, and topical grounding; do not copy the exact image. Avoid: logos, brand marks, copyrighted characters, real person likenesses, fake screenshots, UI text, readable text, watermarks, charts with fak
Google DeepMind’s next flagship model is moving through post-training, but it has not launched. Koray Kavukcuoglu says the team wants to release an early Gemini 4 version as soon as possible and refine it through rapid updates, rather than wait for a single finished release. He hopes that first release will come “much earlier” than the end of 2026.3
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What Kavukcuoglu said—and what remains uncertain
Post-training is the stage in which a base model is refined for performance and reliability. Kavukcuoglu described Gemini 4 as being in its early stages and said the team was excited by the results it had seen. His proposed approach is to ship an early post-training output and iterate quickly.3
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Neither the reported timeline nor the team’s enthusiasm establishes a release date, public availability or how Gemini 4 will compare with rival models. Those questions remain open until Google ships it and its performance can be assessed.3
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Why this release carries more weight than a routine update
Kavukcuoglu took over day-to-day leadership of Google DeepMind after Demis Hassabis stepped back. The handoff comes amid questions about Google’s flagship-model schedule: Gemini 3.5 Pro did not arrive on its expected June timetable. Some reports say it was scrapped, while other accounts describe it as delayed or still in development. Its precise status should not be treated as settled.1
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Google has kept shipping Flash models, including Gemini 3.8 Flash. Those releases show activity across its faster model line, but they do not answer whether Gemini 4 can compete on demanding flagship tasks.6
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The competitive backdrop is also changing. OpenAI’s GPT-6 Sol and Luna and Anthropic’s Claude Opus 5.5 have recently launched, increasing the pressure to deliver both capability and value. Meta’s Muse agent adds a product-level challenge: strong models must translate into useful experiences, not just promising demonstrations.30
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The test for Google and investors
An early release would demonstrate that the new DeepMind leadership can get a flagship version into users’ hands. The more meaningful test would come after launch: whether rapid iterations produce strong reasoning and coding results while keeping the cost of using the model competitive. For now, Gemini 4 is a stated release plan—not an established answer to either question.3
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Google DeepMind chief Koray Kavukcuoglu says Gemini 4 is in early post training and hopes to release an initial version well before the end of 2026, then improve it rapidly.
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Google DeepMind chief Koray Kavukcuoglu says Gemini 4 is in early post training and hopes to release an initial version well before the end of 2026, then improve it rapidly. The key test after launch will be whether Gemini 4 delivers competitive reasoning and coding at a cost users can justify.