Sualeh Asif(@sualehasif996)

Grok 4.5 feels very good to use!

Sualeh Asif (@sualehasif996) — Tue, 21 Jul 2026 23:22:12 GMT

Grok 4.5 feels very good to use!

Dan Shipper 📧@danshipper

Grok 4.5 is @kieranklaassen's 2nd most used model

holy shit, i need to update my priors

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Good model :)

Sualeh Asif (@sualehasif996) — Wed, 08 Jul 2026 20:12:29 GMT

Good model :)

Artificial Analysis@ArtificialAnlys

SpaceXAI just released Grok 4.5, and it ranks #4 on GDPval-AA v2 with an Elo of 1543 - behind only the latest Claude releases from Anthropic on real-world agentic knowledge work tasks

Grok 4.5 achieved this score at a cost of $0.49 per GDPval task to sit clearly on the Pareto frontier for performance versus cost. This cost is lower than GLM-5.2 and Kimi K2.6, and nearly 90% cheaper than the models ahead of it on our leaderboard.

We’re finalizing the remaining Artificial Analysis Intelligence Index evaluations and will share final results soon.

Thanks to @SpaceXAI and @elonmusk for their collaboration testing this model ahead of release, and congratulations on the launch!

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This is the first model that I personally prefer over Opus when I am iterating with a single agent. ...

Sualeh Asif (@sualehasif996) — Wed, 08 Jul 2026 19:58:14 GMT

This is the first model that I personally prefer over Opus when I am iterating with a single agent. Fast Grok 4.5 feels very very good!  

The model always finds its way around seemingly annoying roadblocks, is very direct and easy to communicate with, and is just really really intelligent.

Really excited about our future work with @SpaceXAI

Cursor@cursor_ai

We've partnered with SpaceXAI to train Grok 4.5.

It’s our most powerful model yet and the first we've built for more than software engineering.

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This is the first model that I personally prefer over Opus when I am iterating with a single agent. ...

Sualeh Asif (@sualehasif996) — Wed, 08 Jul 2026 18:14:16 GMT

This is the first model that I personally prefer over Opus when I am iterating with a single agent. Fast Grok 4.5 feels very very good!

The model always finds its way around seemingly annoying roadblocks, is very direct and easy to communicate with, and is just really really intelligent.

Really excited about our future work with @SpaceXAI.

Cursor@cursor_ai

We've partnered with SpaceXAI to train Grok 4.5.

It’s our most powerful model yet and the first we've built for more than software engineering.

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Programmatic access to the frontier intelligence of Composer 2.5 with the cursor sdk!

Sualeh Asif (@sualehasif996) — Fri, 22 May 2026 20:14:02 GMT

Programmatic access to the frontier intelligence of Composer 2.5 with the cursor sdk!

Cursor@cursor_ai

With the Cursor SDK, you can build your own agents with Composer 2.5. It's now available in Python and TypeScript.

This long weekend, Composer usage is 90% off in the SDK. We're excited to see what you build!

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Big model coming soon ... !

Sualeh Asif (@sualehasif996) — Mon, 18 May 2026 17:29:08 GMT

Big model coming soon ... !

Cursor@cursor_ai

Together with SpaceXAI, we’re training a significantly larger model from scratch, using 10x more total compute.

With Colossus 2’s million H100-equivalents and our combined data and training techniques, we expect this to be a major leap in model capability.

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We've gotten really really good at RL. Composer 2.5 is fighting well-above its weight class. Very e...

Sualeh Asif (@sualehasif996) — Mon, 18 May 2026 17:28:17 GMT

We've gotten really really good at RL. Composer 2.5 is fighting well-above its weight class.

Very excited for the next release as we scale model sizes and FLOPs with @SpaceXAI!

Cursor@cursor_ai

Introducing Composer 2.5, our most powerful model yet.

It's more intelligent, better at sustained work on long-running tasks, and more reliable at following complex instructions.

For the next week, we’re doubling the included usage of the model.

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Watch it on YouTube: https://t.co/Bqiclgjh1u

Sualeh Asif (@sualehasif996) — Thu, 14 May 2026 18:27:53 GMT

Watch it on YouTube: youtube.com/watch?v=bWyOyy…

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A conversation with @sirupsen on scaling Shopify, building turbopuffer, and the future of databases....

Sualeh Asif (@sualehasif996) — Thu, 14 May 2026 18:27:52 GMT

A conversation with @sirupsen on scaling Shopify, building turbopuffer, and the future of databases.

00 - Scaling Shopify through flash sales and outages
13 - How top infrastructure teams collaborated in the 2010s
35 - Engineering principles from Logrus and on-call
38 - The story behind Simon’s famous-ish blog, Napkin Math
05 - Why new database companies keep winning
21 - How Simon became a fan of databases
45 - AI coding, and where agents still fail
10 - Hiring P99 engineers in the AI era
45 - What’s next for databases

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Composer 3 and beyond will be trained with 10-100x more flops! Incredibly excited to partner with @S...

Sualeh Asif (@sualehasif996) — Tue, 21 Apr 2026 22:41:39 GMT

Composer 3 and beyond will be trained with 10-100x more flops! Incredibly excited to partner with @SpaceX to train frontier models on the biggest compute clusters in the world.

SpaceX@SpaceX

SpaceXAI and @cursor_ai are now working closely together to create the world’s best coding and knowledge work AI.

The combination of Cursor’s leading product and distribution to expert software engineers with SpaceX’s million H100 equivalent Colossus training supercomputer will allow us to build the world’s most useful models.

Cursor has also given SpaceX the right to acquire Cursor later this year for $60 billion or pay $10 billion for our work together.

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Model, runtime, and interface. We are a new type of company that builds great product and make good ...

Sualeh Asif (@sualehasif996) — Thu, 02 Apr 2026 21:27:12 GMT

Model, runtime, and interface. We are a new type of company that builds great product and make good models!

Cursor@cursor_ai

We’re introducing Cursor 3. It is simpler, more powerful, and built for a world where all code is written by agents, while keeping the depth of a development environment.

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Composer 2 is our first model where the intelligence is truly at the frontier-level. As we scale our...

Sualeh Asif (@sualehasif996) — Thu, 19 Mar 2026 17:28:17 GMT

Composer 2 is our first model where the intelligence is truly at the frontier-level. As we scale our compute and pretraining + RL stack, you should continue to expect genuinely great Composer models!

Cursor@cursor_ai

Composer 2 is now available in Cursor.

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most excited about all the perf work we did to make LSP perf be excellent in 2.0!

Sualeh Asif (@sualehasif996) — Tue, 04 Nov 2025 19:34:55 GMT

most excited about all the perf work we did to make LSP perf be excellent in 2.0!

Cursor@cursor_ai

We've shipped several quality-of-life improvements to Cursor!

Details below...

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Fireworks has been a great partner for all things inference! Excited to continue partnering with the...

Sualeh Asif (@sualehasif996) — Sun, 02 Nov 2025 23:40:53 GMT

Fireworks has been a great partner for all things inference! Excited to continue partnering with them!

Lin Qiao@lqiao

I'm very excited to share that @FireworksAI_HQ  has raised $250M in Series C funding co-led by @lightspeedvp  and @IndexVentures , and participation from @sequoia  Capital and @EvanticCapital, bringing up valuation to $4 billion. In total, we raised $327M from prior rounds led by @benchmark  and @sequoia, with participation of strategic investors including @nvidia , @AMD , @databricks, @MongoDB , and many angel investors. 

When we founded Fireworks in 2022, the vision was simple, but the problem was complex: give builders the speed, cost, and control they need to win. Our mission is to reach Artificial Autonomous Intelligence – automated product and model co-development to reach maximum quality, speed and cost-efficiency using generative AI. This round propels our execution to expand our current product of tuning and inference platform towards Artificial Autonomous Intelligence. 

↗️ We have onboarded hundreds of thousands of developers to customize the latest models to create unique applications and impactful user experiences. 10x from Series B. 
↗️ 10K+ organizations are running on Fireworks. Companies including Notion, Shopify, Uber, GenSpark, Vercel have built and scaled on Fireworks. 
↗️ We process more than 10 trillion tokens daily. More than 20x from Series B. 

We will use the new funding in the following investment: 
📖 Deepen our research in post-training and inference alignment to maximize quality, speed and cost efficiency of computation, including R&D in system research and algorithmic research. 
🛠️ Expand our product towards a comprehensive tool-chain for the new user experience creation lifecycle, centered around product and model co-design and automation, from model evaluation, reinforcement learning to ultra fast inference engine. 
🌎 Grow our computation footprints 3x higher in the next one year, and continue R&D to minimize computational cost and maximize system utilization. 

This round is not just evidence that our bet three years ago is driving a big impact, it's concrete proof of the trust and commitment we've built with our customers, partners, and our community. 

Join our mission to build Artificial Autonomous Intelligenfireworks.ai/careersrCo

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0.50 is a really big release! The new tab model is an OOM better at jumps and the cursor agent can r...

Sualeh Asif (@sualehasif996) — Wed, 21 May 2025 23:02:55 GMT

0.50 is a really big release! The new tab model is an OOM better at jumps and the cursor agent can run in the background. You can interact with your agents immediately in a remote copy of Cursor!

Cursor@cursor_ai

New Tab model, 1M+ context windows, and a preview of our background agent

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* warm initializations = someone on your team already has an index

Sualeh Asif (@sualehasif996) — Wed, 30 Apr 2025 22:45:15 GMT

* warm initializations = someone on your team already has an index

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Codebase indexing has gotten significantly better on @cursor_ai: size: 1M+ files / 1B+ lines of code...

Sualeh Asif (@sualehasif996) — Wed, 30 Apr 2025 22:45:14 GMT

Codebase indexing has gotten significantly better on @cursor_ai:
size: 1M+ files / 1B+ lines of code
warm indexes: initialization 12-20x faster with ~ instant search
speed: cold initialization 5x faster.

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s/o to @turbopuffer for truly serverless vector search. We have also been using aurora limitless for...

Sualeh Asif (@sualehasif996) — Wed, 30 Apr 2025 22:45:14 GMT

s/o to @turbopuffer for truly serverless vector search. We have also been using aurora limitless for metadata and its now handling over 1M txn/s.
aws.amazon.com/about-aws/what…

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