FrontierThe story, in brief
Grok 4.5 is so cheap compared to Fable 5 and GPT 5.5 that benchmark gaps may not matter much
$2 per million tokens. Grok 4.5 trails GPT-5.5 on benchmarks but costs a fraction—and that may be enough to win.
The KeyNews take
Why it matters
xAI's Grok 4.5 introduces a new competitive axis: benchmark performance is losing relevance when pricing and token efficiency create a dominant cost-per-capability ratio. For builders, this reshapes ROI calculations.
The key facts
5 to knowGrok 4.5 trained on tens of thousands of Nvidia GB300 GPUs
Trails Fable 5 and GPT-5.5 on coding benchmarks
4.2x more token-efficient than Opus 4.8
Priced at $2 per million input tokens
EU availability mid-July 2026
Go to the source
The Decoderthe-decoder.com
Publisher excerpt: xAI releases Grok 4.5, trained on tens of thousands of Nvidia GB300 GPUs. In coding benchmarks, the model trails Fable 5 and GPT-5.5 but needs 4.2 times fewer tokens than Opus 4.8. At $2 per million input tokens, it costs a fraction of the competition. EU availability is expected in mid-July.