The official AI benchmark of the vibe coding movement @bridgemindai
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Joined March 2026
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Bridgebench retweeted
The next few weeks are going to be crazy.
Fable 5.5. GPT 6.1 Astra. Grok 4.8.
And China has been quiet for a while. That's about to change.
More competition is finally coming for Opus 5.5.
DeepSeek V4.1 Flash just dropped, and it's now the MOST EXPENSIVE small model on the BridgeBench lava lamp test.
DeepSeek V4.1 Flash: $0.04, 4m 3s
Claude Haiku 5.5: $0.03, 4m 34s
GPT 6 Luna: under $0.01, 42.8s
Luna built the best lamp of the three. Cheapest, fastest and best.
Also, DeepSeek's launch chart compares against Opus 5 and GPT 5.6 Sol. Two generations old.
GPT 6 Luna is still the best small model.
🚀 DeepSeek-V4.1-Flash-1017 is here!
Stronger benchmark performance, faster task completion, and shorter outputs than the previous version—a Pareto improvement in performance and cost. Now live on our website, app, and API.
🛠️ Optimized for @DeepSeekHarness, Tencent CodeBuddy, WorkBuddy, and more. Upgrade to DeepSeek Harness v0.2.1-rc.1 or later for the best experience with the new model.
1/4
Bridgebench retweeted
You can build a $10,000/month Roblox game with Opus 5.5. Here's how:
1. Find a trending game on the charts.
2. Spot what it's missing.
3. Have Opus 5.5 build your version.
4. Ship fast and iterate on player data.
You don't need to know Luau anymore. You need to know what players want.
Bridgebench retweeted
Fable 5.5 needs to be affordable.
Fable 5.1 was incredible, but it died in 30 minutes on a $200 Max plan. I haven't touched it since Opus 5.5 came out.
Opus 5.5 is amazing because you can actually use it all day on a subscription.
The smartest model in the world doesn't matter if you can't afford to use it.
This week's NerfBench results are live. No nerfs detected.
Claude Opus 5.5: 105.8%
Claude Sonnet 5.5: 98.9%
GPT 6.1 Sol: 98.0%
GPT 6 Astra: 97.1%
The big story is Opus 5.5. It jumped 10 points in a week, from 95.7% to 105.8%.
Last week it was the only model below its launch score. This week it's the only one above it.
Opus 5.5 is getting stronger.
Bridgebench retweeted
I wish Opus 5.5 had more competition.
If someone actually challenged it, Anthropic would be forced to drop Fable 5.5 sooner.
But right now Opus 5.5 is still king.
So there's not much reason for them to release it.
Bridgebench retweeted
Today we're adding frontend tests to NerfBench.
First test: Claude Opus 5.5 on the lava lamp, launch day vs today.
Sep 22: 9m 35s, 61,953 tokens.
Oct 15: 12m 39s, 78,293 tokens.
Opus 5.5 is using 26% more tokens.
But the result is way better.
Bridgebench retweeted
Speed is the biggest edge on Roblox right now, and Opus 5.5 just handed it to everyone.
Trends on Roblox move in weeks. By the time a small team ships their version of the hot game, players have already moved on.
With Opus 5.5 you can go from idea to a playable build in a weekend. Ship it while the trend is still climbing, then let the player data tell you what to fix.
The creators winning this year aren't the best coders. They're the ones who test the most ideas.
Ship fast, read the data, double down on what sticks.
China is about to drop frontier models to go after Claude Opus 5.5.
Nobody from China has touched Opus 5.5 on BridgeBench yet. That won't last.
DeepSeek, Moonshot, Alibaba, and Zhipu are all overdue for a new flagship.
When they land, every one of them goes straight through BridgeBench.
Get ready.
Bridgebench retweeted
Fable 5.5 is going to be a significant leap.
Muse Wonder and Gemini 4 Argon looked great on benchmarks. Neither one changed the frontier.
Fable 5.5 will.
Bridgebench retweeted
I just cancelled my $200/month Google AI Ultra subscription.
I bought it two weeks ago to get first access to Gemini 4 Argon.
It's been a complete disappointment.
It's a step in the right direction for Google, but it doesn't compete with Opus 5.5 at all.
No reason to keep paying for it.
Gemini 4 Argon is now on BridgeBench.
Google put it up against GPT 6 Astra, Claude Fable 5.1, and Claude Opus 5.5 in their launch benchmarks.
On BridgeBench, it lost to all three. It lands at #8 with a 623.
It's behind Claude Sonnet 5.5, GPT 6 Sol, and even Claude Fable 5 from June.
Google's new flagship is a mid tier model.
Bridgebench retweeted
Gemini 4 Argon is a solid improvement for Google.
But it comes nowhere near Claude Opus 5.5.
Disappointed that Google is still this far behind.
Meta's new Muse Wonder is now on BridgeBench.
It barely beats Claude Haiku 5.5. Anthropic's smallest model.
Muse Wonder: 611
Claude Haiku 5.5: 601
It's only 5 points better than Meta's own Muse Spark 1.3, and 149 points behind Claude Opus 5.5.
Meta is still nowhere near the frontier.
Bridgebench retweeted
Muse Wonder is benchmaxxed.
Meta says it beats the competition on the key benchmarks. On the BridgeBench lava lamp test it built a red cylinder.
No glass. No lava.
I've never seen a model this benchmaxxed in my life.
Latest NerfBench results are in. No nerfs detected.
Claude Opus 5.5: 95.7%
GPT 6 Astra: 102.0%
Claude Sonnet 5.5: 103.1%
GPT 6.1 Sol: 105.5%
All four are within normal variance.
But Opus 5.5 is the one to watch. It's the only model below its launch score.
We'll keep testing.
Claude Haiku 5.5 just dropped.
We put it head to head with GPT 6 Luna on the BridgeBench rocket launch test.
Claude Haiku 5.5: $0.05, 6m 58s
GPT 6 Luna: <$0.01, 1m 5s
Haiku built a clean scene, but Luna did it 6x faster for under a penny.
GPT 6 Luna is still the small model to beat.