Grok 4.6 on finance benchmarks
It is the best-ranked SpaceXAI entry on Finance Agent v2 and does better on tax research than its analyst-research rank suggests.
What it is
Grok 4.6 is a SpaceXAI model released August 12, 2026, with a 500k-token context window. Vals AI ran it at high reasoning effort, temperature 0.7. Developer documentation listed by Vals: docs.x.ai.
| Developer | SpaceXAI |
|---|---|
| Release date | Aug 12, 2026 |
| Context window | 500k tokens |
| Weights | Private |
| Public API price | $2.00 input / $6.00 output per million tokens, listed (source) |
What published results say
| Benchmark | Score | Rank | Context |
|---|---|---|---|
| Finance Agent v2 | 53.68% | #30 of 78 | Context: n=450 test questions, 3 runs · Oct 12, 2026 leaderboard · Vals AI · ±0.67 SEM |
| Excel Modeling Benchmark | 62.73% | #30 of 74 | Context: n=51 test tasks · Oct 12, 2026 leaderboard · Vals AI · ±3.08 as published, type not stated |
| Tax Agent Bench | 33.14% | #14 of 69 | Context: n=193 test questions · Oct 12, 2026 leaderboard · Vals AI · ±3.40 as published, type not stated |
- Finance Agent v2 cost and time per task: $1.66, 16m41s.
What the benchmarks test: FAB v2, filing-based analyst research questions; EMB, building Excel financial models (LBO, DCF, M&A, comps); Tax Agent, research-grade US corporate tax questions, all-or-nothing grading. All three use held-out test sets and AI judges.
Limits
- Below the leaders on both analyst research and Excel modeling (30th on each).
- Search-heavy research style on Tax Agent Bench, according to Vals, which does not by itself predict accuracy.
- Benchmarks measure research and modeling answers, not trading results.
Head-to-head
Primary sources
- VerifiedGrok 4.6 model page (Vals AI)Scores, margins, release date, context window and token prices checked October 14, 2026.
- VerifiedFinance Agent v2 leaderboard and methodology (Vals AI)Sample size, grading and update date checked October 14, 2026.
- VerifiedExcel Modeling Benchmark leaderboard and methodology (Vals AI)Sample size, grading and update date checked October 14, 2026.
- VerifiedTax Agent Bench leaderboard and methodology (Vals AI)Sample size, grading and update date checked October 14, 2026.
- LinkedDeveloper documentation (SpaceXAI)Linked by Vals AI. Not re-checked by us.
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