BenchLeader

Grok 3

Reasoning effort

Grok 3 is a SpaceXAI proprietary model, released 17 Feb 2025. Its best configuration ranks #340 of 785 on the BenchLeader Index at 51.5 ±3.4, in the upper half. The ± is the point: 295 other configurations score within that range, so they and this one cannot be told apart on quality alone — price and speed are what separate them. It scores highest in multimodal (65) and lowest in composite (43). At $6.00 per million tokens blended it is among the most expensive ranked models. Output speed of 91 tokens per second puts it faster than most, with a first answer in 1.6 s. It has been measured at 2 reasoning-effort settings; this summary describes the best-scoring one, and the tabs above switch between them. Last measured 22 Oct 2026.

Blended price
$6.00/M
$3.00 in · $15.00 out
Output speed
91 tok/s
measured by Artificial Analysis
First answer
1.61 s
first token 1.61 s
Context
1M
Full answer
7.12 s
median, reasoning included
Cost per run
–
Released
17 Feb 2025
How it scores by categoryDashed line = average model (50). One step of 15 = one standard deviation.
  1. Overall index52
  2. Reasoning43
  3. Coding47
  4. Agents & tools44
  5. Maths55
  6. Knowledge51
  7. Instruction following57
  8. Human preference59
  9. Multimodal65
  10. Long context52
  11. Composite43

Versions

SpaceXAI has shipped 11 models under this name. Each is ranked on its own results; a newer version often has fewer results so far, which holds its index nearer the average until more arrive.

ModelReleasedIndexRank
Grok 4.7high21 Sept 202663.9#59
Grok 4.6medium11 Aug 202664.2#56
Grok 4.5high8 Jul 202659.3#134
Grok 4.3medium17 Apr 202658.7#147
Grok 4.2high10 Mar 2026––
Grok 4.20thinking17 Feb 202658.6#148
Grok 4.117 Nov 202557.2#184
Grok 49 Jul 202558.0#161
Grok 3this page17 Feb 202551.5#340
Grok 212 Dec 202441.9#612
Grok 4.20 1–––

Reasoning-effort configurations

The same model behaves differently depending on how much it is allowed to think. Each row is one setting, scored only on the benchmarks that were run at that setting. “Not stated” collects results from publishers that did not say which setting they used; for a reasoning model that is usually its thinking mode, but we do not assume it. Pick a setting here or at the top of the page to see its price, speed and category scores.

EffortIndexRankSpeedFirst answerChat reply costCategories
thinking––91 tok/s1.61 s$0.0057Composite 41
not statedbest51.5#34091 tok/s1.61 s$0.0057Agents & tools 44 · Coding 47 · Composite 43 · Human preference 59 · Instruction following 57 · Knowledge 51 · Long context 52 · Maths 55 · Multimodal 65 · Reasoning 43

How its index has moved

8 Sept 2026 to 18 Oct 2026
455055

The index is recomputed from scratch every day, so a line moves when a new benchmark result lands, when a publisher revises a score, or when the models it is normalised against change. Early movement usually means the score is still settling.

Benchmark results

See all LLM benchmarks. One column per reasoning effort. Rank is among every configuration of every model on that benchmark. Hover a score for the run it came from.

Coding

Agents & tools

Benchmarknot statedSourceTrend
Terminal-Bench Hard11.4%#215Artificial Analysis
τ²-Bench Telecom (AA)not in index48.8%#200Artificial Analysis
BALROGnot in index29.5%#18BALROG
BrowseCompnot in index1.3%#13OpenAI

Instruction following

Human preference

Benchmarknot statedSourceTrend
Arena Text1411#138Arena (LMArena)
Arena Creative Writingnot in index1398#109Arena (LMArena)
Arena Multi-turnnot in index1410#141Arena (LMArena)
Arena Longer Queriesnot in index1428#124Arena (LMArena)
Lech Mazur Creative Writingnot in index76.4%#23Lech Mazur

Multimodal

Benchmarknot statedSourceTrend
MMMU (validation)78.0%#10MMMU

Long context

Benchmarknot statedSourceTrend
Fiction.LiveBench 120k58.3%#19Fiction.live
AA-LCR58.0%#289Artificial Analysis

Composite

Benchmarkthinkingnot statedSourceTrend
Epoch Capabilities Indexnot in indexeffort not stated–138.2#121Epoch AI Benchmarking Hub
AA Intelligence Index v4.3.210.4#37712.1#337Artificial Analysis
HELM Capabilities meannot in indexeffort not stated–72.7%#17HELM Capabilities

Price history

The price above, per 1M tokens, every day it changed.

$0.00$5.50$11.00$16.50$22.00Sept 26Oct 26
input outputnow $3.00 in · $15.00 out

What a task costs

Estimates from list price, output speed and time to first answer for the best configuration. “With caching” assumes three-quarters of the input is served from the prompt cache. Reasoning tokens are not modelled.

WorkloadTokens in / outCostWith cachingTime
Chat reply400 / 300$0.0057–4.9 s
Summarize a 30-page report12,000 / 600$0.045–8.2 s
Code edit6,000 / 1,500$0.041–18.1 s
Agentic coding session60,000 / 4,000$0.240–45.7 s
Structured extraction2,000 / 200$0.0090–3.8 s

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See also

Questions people ask

What are Grok 3's benchmark scores?
As of 24 Oct 2026, Grok 3 scores 51.5 ±3.4 on the BenchLeader Index, strongest in multimodal (65) and weakest in composite (43). That rests on 32 independent benchmark results, and every score on this page links to its publisher.
How does Grok 3 rank?
Grok 3 is #340 of 785 ranked configurations on 24 Oct 2026. 295 other configurations score within its margin, so the exact position matters less than the band. The leader is Claude Opus 5.5 (max effort) at 72.6.
How much does Grok 3 cost per 1M tokens?
As of 24 Oct 2026, Grok 3 costs $3.00 per 1M input tokens and $15.00 per 1M output tokens, $6.00 blended (three input tokens per output token). The list price last changed on 13 Oct 2026.
When was Grok 3 released?
SpaceXAI released Grok 3 on 17 Feb 2025. BenchLeader has results for it at 2 reasoning-effort settings.

Data as of 24 Oct 2026. Compare these configurations.

Cite as: BenchLeader, “Grok 3: benchmarks, pricing, speed and rank”, data as of 24 Oct 2026, https://www.benchleader.com/models/grok-3.