Grok 4.5 is suddenly on the board
xAI post, Cursor post, AA Index
Key points:
- Artificial Analysis currently ranks Grok 4.5 at #4 after Fable GPT-5.5 and Opus.
- API pricing is $2/M input tokens and $6/M output tokens.
- On Artificial Analysis, Grok 4.5 used 60M output tokens across the Intelligence Index, compared to 72M for GPT-5.5.
- Artificial Analysis total eval cost: Grok 4.5 $600.92, GPT-5.5 $2630.04, Opus $3752.55, Fable $5630.52.
- DeepSWE 1.0: Grok 4.5 62.0%, GPT-5.5 64.31%, Fable 66.1%.
- DeepSWE 1.1: Grok 4.5 53%, GPT-5.5 67%, Fable 70%.
- Terminal-Bench 2.1: Grok 4.5 83.3%, GPT-5.5 83.4%, Fable 84.3%.
This is a huge jump, and I didn’t really expect it to happen so fast. Grok went from not really being on the board to actual frontier competition in one release. It’s not only massively cheaper per token, it also seems more token-efficient for a frontier Intelligence Index score.
At the same time, it’s not clean SOTA. DeepSWE 1.1 shows a much bigger gap vs GPT-5.5 and Fable, so I wouldn’t overread the best benchmarks only, but the direction is obvious.
This is the first Grok release I’d actually consider using for coding and agentic work.
Credit:
Here is my X - https://t.co/m0AZo1fxSx
https://t.co/9hnni0CUna
I am in the process of planning a full inventory and redesign of our legacy MS/SQL solution. I plan to use Fable5 for the planning phase at least, and some other tools (perhaps some git repos that seem promising). Also researching Graphify to create an efficent "rag" layer. We are just implementing Claude teams with our team now. Hard to do both, eh? Run the company while transforming to AI.
@dezoxyn@RoundtableSpace Ollama runs the voice application after Fable deploys it. Voice requires a model (in this case local/free) to synthesize the conversation and keep it off the cloud/$.
Don't even read this if you are not a total AI nerd !!!
I am currently watching my old agent "Klara" my former Chief of Staff (fleet of 8), exchange txt messages with new Klara (on my secure virtual pc) and help trouble shoot the migration.
One posts a text in the shared one-drive folder. The others reads it, they share configuration issues, and work together to get New Klara fully functional in a server environment.
This is total geek out 2026. It's not even work for me.
My new team is virtual. Not replace the humans, but to empower us all. They are real agents, real smart, and really helpful.
We live in an interesting time. Just make sure you respect PHI's if you are in healthcare. It's a lot of work, but part of the cost of doing business and protecting your clients, your patients, and yourself.
Giving them funny names is one of the small joys