/Tech1h ago

OpenAI postpones GPT-5.6 release to mid-July as Google DeepMind pauses Gemini 3.5 Pro

Story Overview

Social chatter highlights potential slips in flagship timelines for OpenAI’s next major model and a Google DeepMind pause, set against Anthropic’s recent model availability and separate OpenAI work on real-time voice capabilities whose details remain unconfirmed.

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Original post

Chubby♨️@kimmonismus#1360inTech

Such a disappointment. So only Sonnet 5 soon. GPT-5.6 postponed.

leo 🐾@synthwavedd

🚨 SCOOP(s):

- GPT-5.6 has been delayed and will no longer release this week. New target is ~mid-July. - DeepMind are not satisfied with the current state of 3.5 Pro and it will no longer launch this month. - Preparations for the launch of Bidi, OpenAI's new voice model, are underway in ChatGPT and we could see it available as soon as this week. - Claude Sonnet 5 is currently available for select enterprise customers under an Early Access Program and is seen as a stop-gap as progress on getting Mythos/Fable 5 back out have stalled.

A bit of a disappointing end to the month, but July should prove more fruitful!

7:53 AM · Jun 23, 2026 · 65.6K Views

Open Question

Timelines stay unconfirmed amid competitive churn

No official word pins down mid-July targets or specific pause triggers, so any projected windows for these releases rest on internal leaks and community speculation rather than verified schedules.

FYI

Voice experiments move in their own lane

Separate testing of a bidirectional model that handles interruptions and live translation is underway, though rollout timing and integration paths have not been disclosed.

Sentiment

Many users voiced disappointment over OpenAI delaying GPT-5.6 to mid-July, while positive users expressed excitement for Sonnet 5 improvements and open-source models gaining ground.

Pos

75.0%

Neg

25.0%

25 comments with sentiment.

Cluster Engagement

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Posts from X

Most Activity

VIEWS28.5KBOOKMARKS17LIKES172

Zephyr@zephyr_z9

More post-training required for 5.6 Fable mogs it hard (though the difference between model size is hugeee)

leo 🐾@synthwavedd

🚨 SCOOP(s):

A bit of a disappointing end to the month, but July should prove more fruitful!

1h28.5K17217

RETWEETS3REPLIES9

Yuchen Jin@Yuchenj_UW

GPT-5.6 is delayed. Gemini 3.5 Pro is delayed. Mythos/Fable 5 is not coming back anytime soon.

If GLM-5.3 drops this month, OSS LLM will win!

leo 🐾@synthwavedd

🚨 SCOOP(s):

A bit of a disappointing end to the month, but July should prove more fruitful!

15m2.4K333

Andrew Curran@AndrewCurran_

Probably all true. A spectre is haunting the AI race - the spectre of Mythos.

leo 🐾@synthwavedd

🚨 SCOOP(s):

A bit of a disappointing end to the month, but July should prove more fruitful!

16m2.7K816

Willz@willzxone

@kimmonismus The pace has gotten so ridiculous that “only Sonnet 5” sounds disappointing.

Just posted about claude sonnet 4.6 is down currently, this feels like something is coming.

1h5631

yertis@yertis89

@AndrewCurran_ any idea when mythos will be back? days? weeks? months?

12m912

AstralWanderer@AstralWanderer9

@zephyr_z9 also another thing is that labs needs to be careful with releasing too powerful models to not end up like Ant with Mythos, it would be disaster for oai

30m155

Bryce Del Rio@BryceDelRio

@Yuchenj_UW Do you think delay is driven in part by fears of government control/ imposing restraints? Seems lik everything was escalating fast and hitting escape velocity from all providers, and now as you said everything seems delayed.

6m251

Leon Lin@LexnLin

@kimmonismus and deepmind cooked as usual 😭

omg what a boring month 😔

1h2193

Ravid Shwartz Ziv@ziv_ravid

The AGI is delaying...

leo 🐾@synthwavedd

🚨 SCOOP(s):

A bit of a disappointing end to the month, but July should prove more fruitful!

38m30500

Emmanuel@iamnotemmanuel

@willzxone @kimmonismus is claude down or just the Sonnet model?

1h300

Brown Coyote Studios@BrownCoyoteStu

@kimmonismus Pooper Scooper.

Also, the roller coaster of scoops is mostly engagement bait. Disappointment daily from no action out of the labs is real, but probably shouldn't be driven by posts; even from the labs themselves (Looking at you Ant with your 24 hour update promise).

59m184

CrazyAI Tech@CrazyAITech

@Yuchenj_UW Also, if Grok or Composer drops a new version…

12m521

Hussain Hashim | Building Sunday Back@itsthedonhashim

@kimmonismus @kimmonismus honestly felt the same way. was really looking forward to seeing what GPT-5.6 could do. guess we'll have to hang tight a bit longer.

50m481

Nish@nisxant

@kimmonismus i hope its not postponed for security concerns 😭like phable 5

1h152

Wxrrjxr@wxrrjxr

@zephyr_z9 Is fable ever coming back

1h142

Amphora@Am4ora

@kimmonismus Maybe 5.6 is a bit more powerful than people think, and it's advantageous to let the Anthropic drama play out.

31m130

𒁹𒁹 𒑱 𒁹𒁹 Alexander 𒁹𒁹 𒑱 𒁹𒁹@a1xndr_9

@kimmonismus Tbh I can’t wait for sonnet 5

It’s my daily driver and long overdue for an update

Can’t wait!!

1h126

zoe 🏳️‍⚧️ 🥰@Kathy53764820

@kimmonismus Looks like the AI’s taking a nap, so we’ll just enjoy some sonnets until it decides to get out of bed.

1h120

Paweł J Lisowski@PawelJLisowski

@kimmonismus Massive disappointment, guess stuck with opus 4.8 for now… starting to wonder if we ever get anything better than this available to general public. Could be start of government backlash across the board as models get better.

29m119

Eclipse 🌖@ECLresearch

@kimmonismus Timeline just slipped again. If Sonnet 5 ships before GPT-5.6, that’s two release cycles where Anthropic beats OpenAI on cadence.

1h118