Claude Opus 4.6 has significantly dropped in the Hallucination benchmark, falling from #2 to #10 with a 15% decrease in accuracy. This decline raises questions about the model's reliability and performance consistency, which is critical for engineers evaluating AI tools.
CLAUDE OPUS 4.6 IS NERFED.
BridgeBench just proved it.
Last week Claude Opus 4.6 ranked #2 on the Hallucination benchmark with an accuracy of 83.3%.
Today Claude Opus 4.6 was retested and it fell to #10 on the leaderboard with an accuracy of only 68.3%.
A 98% increase in
Benchmark results indicate that Claude Opus 4.5 is outperforming its successor, 4.6, in terms of hallucination rates. This raises questions about the effectiveness of the latest model and could influence future development decisions.
Claude Opus 4.5 is now OUTPERFORMING Claude Opus 4.6 on BridgeBench Hallucination.
Read that again.
The legacy model is beating the current flagship.
We benchmarked Opus 4.5 this morning to confirm what we saw yesterday.
Claude Opus 4.6 fell from #2 to #10 with a 98%
Grok 4.20 has achieved the highest score in the inference category of BridgeBench, outperforming GPT-5.4 and Claude Opus 4.6. This benchmark result may indicate a shift in competitive dynamics among leading AI models, which could be relevant for infrastructure decisions.
Grok 4.20 inference model has taken 1st place in the inference category of BridgeBench.
With this result, Grok 4.20 has surpassed both GPT-5.4 and Claude Opus 4.6 to claim the top spot.
Following its already top-tier performance in hallucination rate and instruction-following
Grok 4.20 has achieved the top position on the BridgeBench Reasoning benchmark, outperforming GPT 5.4 and Claude Opus 4.6. This indicates a significant advancement in reasoning capabilities, which may influence future AI model development.
Grok 4.20 Reasoning just took #1 on the new BridgeBench Reasoning benchmark.
Beating GPT 5.4 and Claude Opus 4.6.
This model keeps climbing every single week.
Hallucination #1.
Now Reasoning #1.
While Anthropic is throwing 500 errors, xAI is quietly building the most
Grok 4.20 has achieved the top ranking on BridgeBench, surpassing other models like GPT-5.4 and Claude Opus 4.6. This benchmark may indicate a shift in competitive performance among AI models, which could influence future development decisions.
Grok 4.20 takes the #1 spot on BridgeBench
Outperforming GPT-5.4, Claude Opus 4.6, and Gemini.
It just keeps climbing