SpaceXAI releases Grok 4.6 with aggressive pricing, ties GPT-5.6 Sol on benchmarks

[GoalPoacher42]

SpaceXAI, the AI company formerly known as xAI following SpaceX's acquisition of the business in February 2026, has released Grok 4.6, a new flagship model built specifically for long running agents, coding and knowledge work, alongside an aggressive pricing strategy designed to undercut rival frontier models

The model launched August 12th and is immediately available across the xAI API, the company's own Grok Build tool, and the Cursor code editor on all plans, starting pricing sits at 2 dollars per million input tokens and 6 dollars per million output tokens, positioned specifically to be cheaper than comparable frontier offerings from rivals, Grok 4.6 ships with a 500,000 token context window, accepts both text and image input while producing text only output, carries no stated text output limit, and has a February 1st 2026 knowledge cutoff, reasoning effort settings now include a new xhigh tier alongside the existing low, medium and high options

On third party benchmarking from Artificial Analysis, Grok 4.6 scored 61 on the Intelligence Index, a five point improvement over Grok 4.5 High, putting it in a tie with OpenAI's GPT-5.6 Sol Max and ahead of the popular Chinese open weight model Kimi K3 from Moonshot, that places Grok 4.6 as the third best performing model overall on that specific index, behind only Anthropic's Claude Opus 5 and Fable 5, which occupy the top two positions, the model led competing benchmarks specifically on GDPval-AA v2, scoring 1753 compared to 1526 for Grok 4.5, and on AA-Briefcase, though it trailed on coding specific benchmarks that matter most to engineering teams, scoring 65.9 percent on DeepSWE v1.1, an 11.9 point generational improvement but still behind GPT-5.6 Sol Max's 73 percent on that same test

The launch lands alongside real world scrutiny of the broader X and Grok ecosystem, the European Commission has opened a formal investigation under the Digital Services Act examining X's management of systemic risks connected to Grok, including the past dissemination of manipulated sexually explicit material, that investigation concerns the earlier xAI organisation and X's platform management rather than establishing any specific finding that the newly released Grok 4.6 API itself violates EU law, and there is no evidence the new model repeats the specific past incidents associated with earlier Grok deployments, but the ongoing scrutiny is unlikely to help SpaceXAI's efforts to sell Grok as a trusted option for business customers

xAI is pairing the release with a distribution push aimed squarely at developers, offering a first week double usage promotion inside Cursor specifically to encourage its large developer audience to actively test Grok 4.6 against whatever model they currently default to at effectively no marginal cost, that strategy targets exactly the cohort SpaceXAI needs to win over to meaningfully grow its API market share against OpenAI and Anthropic, and comes as the company plans an even larger follow up release, Grok 4.7, expected within a few weeks at a reported 2.1 trillion parameters, compared to unconfirmed reports the current 4.6 release runs at roughly 1.5 trillion parameters

Introducing Grok 4.6x.ai