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GPT-6.1 Terravs.Grok 4.6

Which one is better?

Level in the overall index: the gap is too small for a clear winner. GPT-6.1 Terra is cheaper: Grok 4.6 costs 2 times (input) and 1.2 times (output) as much per token.

IntelligenceOverall index, 0 to 100 · higher is better
67

GPT-6.1 Terra

Rank 12 to 27

55

Grok 4.6

Rank 20 to 27

SpeedTokens per second · higher is better
91

GPT-6.1 Terra

fairly slow

87

Grok 4.6

fairly slow

PriceDollars per 1M tokens · lower is better
$2

GPT-6.1 Terra

fairly expensive

$3

Grok 4.6

fairly expensive

GPT-6.1 Terra

Subscription

Subscriptions in Germany: n/a

Via API

$1 input, $5 output per 1M tokens.

Grok 4.6

Subscription

At xAI from €8 a month (The X Subscription Plus). Through other providers from €6.83 a month (Poe Basic, with limited points). 31 plans in Germany.

Via API

$2 input, $6 output per 1M tokens, unchanged since Aug 16, 2026.

Note
There is a successor: Grok 4.7 (rank 18 to 25, same price).

Overall index with data through Oct 29, 2026 · Prices from Oct 29, 2026 · Speed: measured by Artificial Analysis · Subscriptions as of Oct 24, 2026 · Subscription prices incl. VAT

Where is the difference?

Values from 0 to 100 per task area. We only name a winner when the gap is large enough and there are enough tests.

GPT-6.1 Terra ahead: 4Grok 4.6 ahead: 1level: 2too little data: 3of 10 areas

GPT-6.1 TerraGrok 4.60 to 100, higher is better
Areas in the overall index
CodingGPT-6.1 Terra aheadGPT-6.1 Terra: 84Grok 4.6: 55
ReasoningGPT-6.1 Terra aheadGPT-6.1 Terra: 88Grok 4.6: 51
Mathematicsonly Grok 4.6 has a scoreGPT-6.1 Terra: not enough dataGrok 4.6: 54
KnowledgeGPT-6.1 Terra aheadGPT-6.1 Terra: 80Grok 4.6: 45
AgentslevelGPT-6.1 Terra: 57Grok 4.6: 57
Generalonly Grok 4.6 has a scoreGPT-6.1 Terra: not enough dataGrok 4.6: 69
MultimodalGPT-6.1 Terra aheadGPT-6.1 Terra: 70Grok 4.6: 47
Specialist fields
FinancelevelGPT-6.1 Terra: 45Grok 4.6: 50
LegalGrok 4.6 aheadGPT-6.1 Terra: 8Grok 4.6: 63
Healthonly Grok 4.6 has a scoreGPT-6.1 Terra: not enough dataGrok 4.6: 48
Show 2 more areas that do not count toward the overall index
GPT-6.1 TerraGrok 4.60 to 100, higher is better
Cybersecurityonly Grok 4.6 has a scoreGPT-6.1 Terra: not enough dataGrok 4.6: 60
Productivityonly Grok 4.6 has a scoreGPT-6.1 Terra: not enough dataGrok 4.6: 65

See for yourself: same task, one attempt

The same prompt for both models. We show the latest attempt without fixes; it does not count toward the overall index.

Pelican on a bicycle

A community classic for free-form SVG drawing.

GPT-6.1 Terra

Not tested yet

Grok 4.6

Grok 4.6: Pelican on a bicycle
A community classic for free-form SVG drawing.

Reasoning (requested): high

Current attempt
Run date
Oct 1, 2026
API provider
openrouter
Requested API model
x-ai/grok-4.6
API model reported in response
x-ai/grok-4.6
Reasoning setting
high
Pinned endpoint
xAI | x-ai/grok-4.6-20260810
Temperature
Provider default
Token limit including reasoning
8,192 tokens
Test protocol
community-visual-tests-v1
Technical checks
Passed, not a quality rating
Response time
113.6 s

Visually reviewed. This individual test does not establish overall model quality.

Earlier attempts (1)
  • Sep 7, 2026API request failedReasoning setting: high
Prompt and test conditions

Generate an SVG of a pelican riding a bicycle

Token limit including reasoning: 8,192 tokens

Task origin (Simon Willison)
SVG short test

There is no shared test round for this selection. Results from different rounds are not mixed.

All data side by side

The better value is bold. For the overall index only when the gap is clear.

MetricGPT-6.1 TerraGrok 4.6
Intelligence
Overall index0 to 100, higher is better6755
RankRank 12 to 27 of 95Rank 20 to 27 of 95
Price per 1M tokens
Inputwhat you send$1above 272,000 tokens: $2$2above 200,000 tokens: $4
Outputwhat the model writes$5above 272,000 tokens: $7.50$6above 200,000 tokens: $12
Speed
Tokens per second9187
Technical
Context windowhow much text the model reads at once1.05 M tokens≈ 1,580 A4 pages500,000 tokens≈ 750 A4 pages
Knowledge cutoffJun 1, 2026Feb 1, 2026
ReleasedOct 26, 2026Aug 12, 2026
AvailabilityActiveActive
Open weightsnono
  • GPT-6.1 Terra, 12-hour cache write: The table's cache-write rate covers 30-minute retention. With 12-hour retention it is $2.50 per 1M tokens through 272,000 input tokens, $5 above. Source
  • GPT-6.1 Terra, Long-context billing: Above 272,000 input tokens, the higher rates apply to the entire request. Input and cache rates double, while output costs 1.5 times the standard rate. Source
  • GPT-6.1 Terra, Batch and Flex pricing: 50% off standard pricing Source
  • GPT-6.1 Terra, Fast pricing: Fast mode costs twice the standard price Source
  • GPT-6.1 Terra, Regional processing: 10% surcharge over standard processing Source

Prices without caching or batch discounts · Page count as a rule of thumb from Artificial Analysis

Shared benchmarks

Single results from the same benchmark version, task and metric. A value is bold only with the same test setup and a clear gap.

A: GPT-6.1 TerraB: Grok 4.6

CritPt v2Overall · higher is betterGPT-6.1 Terra: 21.4%Grok 4.6: 17.7%Artificial AnalysisAs of 10/29/2026
GDPval-AAOverall · higher is betterGPT-6.1 Terra: 1,325.12 eloGrok 4.6: 1,620.85 eloArtificial AnalysisAs of 10/29/2026
Legal Research BenchOverall · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 26%Grok 4.6: 48.1%Vals AIAs of 10/26/2026
Tax Agent BenchOverall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 15.2%Grok 4.6: 33.1%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Overall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 49.5%Grok 4.6: 17.2%Vals AIAs of 10/26/2026
Vibe Code Bench v1.1Overall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 84%Grok 4.6: 76.2%Vals AIAs of 10/26/2026
CritPt v2Overall · higher is betterGPT-6.1 Terra: 15.1%Grok 4.6: 5.7%Artificial AnalysisAs of 10/29/2026
GDPval-AAOverall · higher is betterGPT-6.1 Terra: 1,204.16 eloGrok 4.6: 1,418.73 eloArtificial AnalysisAs of 10/29/2026
Legal Research BenchAdministrative / Regulatory · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 45.5%Grok 4.6: 62.1%Vals AIAs of 10/26/2026
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 5.9%Grok 4.6: 16.7%Vals AIAs of 10/26/2026
Show 39 more benchmarks
Terminal-Bench 4.0Hardware · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 26.7%Grok 4.6: 6.7%Vals AIAs of 10/26/2026
CritPt v2Overall · higher is betterGPT-6.1 Terra: 26.6%Grok 4.6: 19.7%Artificial AnalysisAs of 10/29/2026
GDPval-AAOverall · higher is betterGPT-6.1 Terra: 1,415.29 eloGrok 4.6: 1,654.73 eloArtificial AnalysisAs of 10/29/2026
Legal Research BenchAdministrative / Regulatory · Weighted partial credit · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 84.8%Grok 4.6: 91.4%Vals AIAs of 10/26/2026
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 42.5%Grok 4.6: 68.1%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Media · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 58.3%Grok 4.6: 0%Vals AIAs of 10/26/2026
CritPt v2Overall · higher is betterGPT-6.1 Terra: 25.7%Grok 4.6: 17.1%Artificial AnalysisAs of 10/29/2026
GDPval-AAOverall · higher is betterGPT-6.1 Terra: 1,353.15 eloGrok 4.6: 1,626.55 eloArtificial AnalysisAs of 10/29/2026
Legal Research BenchBusiness & Commercial · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 16.3%Grok 4.6: 48.8%Vals AIAs of 10/26/2026
Tax Agent BenchCurrent & Temporal Analysis · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 22.1%Grok 4.6: 43.3%Vals AIAs of 10/26/2026
Terminal-Bench 4.0ML · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 42.4%Grok 4.6: 15.2%Vals AIAs of 10/26/2026
Legal Research BenchBusiness & Commercial · Weighted partial credit · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 75.9%Grok 4.6: 89.8%Vals AIAs of 10/26/2026
Tax Agent BenchCurrent & Temporal Analysis · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 53.1%Grok 4.6: 73.4%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Operations · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 40.7%Grok 4.6: 22.2%Vals AIAs of 10/26/2026
Legal Research BenchCivil Litigation · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 14.8%Grok 4.6: 37%Vals AIAs of 10/26/2026
Tax Agent BenchFact-Pattern Analysis · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 16.1%Grok 4.6: 27.8%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Science · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 54.8%Grok 4.6: 9.5%Vals AIAs of 10/26/2026
Legal Research BenchCivil Litigation · Weighted partial credit · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 80.6%Grok 4.6: 91.1%Vals AIAs of 10/26/2026
Tax Agent BenchFact-Pattern Analysis · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 47.2%Grok 4.6: 66%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Security · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 80%Grok 4.6: 26.7%Vals AIAs of 10/26/2026
Legal Research BenchConstitutional / Civil Rights · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 23.7%Grok 4.6: 36.8%Vals AIAs of 10/26/2026
Tax Agent BenchForms & Filings · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 12.6%Grok 4.6: 23.3%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Software · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 50%Grok 4.6: 25.9%Vals AIAs of 10/26/2026
Legal Research BenchConstitutional / Civil Rights · Weighted partial credit · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 78%Grok 4.6: 88.2%Vals AIAs of 10/26/2026
Tax Agent BenchForms & Filings · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 51.7%Grok 4.6: 72.1%Vals AIAs of 10/26/2026
Legal Research BenchCriminal · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 17.5%Grok 4.6: 42.1%Vals AIAs of 10/26/2026
Tax Agent BenchNumbers & Calculations · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 19.1%Grok 4.6: 46.7%Vals AIAs of 10/26/2026
Legal Research BenchCriminal · Weighted partial credit · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 76.2%Grok 4.6: 87.2%Vals AIAs of 10/26/2026
Tax Agent BenchNumbers & Calculations · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 63.9%Grok 4.6: 79.8%Vals AIAs of 10/26/2026
Legal Research BenchFamily · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 4.5%Grok 4.6: 22.7%Vals AIAs of 10/26/2026
Tax Agent BenchRule & Source Lookup · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 14.9%Grok 4.6: 43.3%Vals AIAs of 10/26/2026
Legal Research BenchFamily · Weighted partial credit · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 64.8%Grok 4.6: 80.4%Vals AIAs of 10/26/2026
Tax Agent BenchRule & Source Lookup · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 40.9%Grok 4.6: 67.5%Vals AIAs of 10/26/2026
Legal Research BenchHealth · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 56.7%Grok 4.6: 73.3%Vals AIAs of 10/26/2026
Tax Agent BenchWeighted Pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 49.7%Grok 4.6: 70.8%Vals AIAs of 10/26/2026
Legal Research BenchHealth · Weighted partial credit · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 92.8%Grok 4.6: 96.7%Vals AIAs of 10/26/2026
Legal Research BenchImmigration · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 9.1%Grok 4.6: 54.5%Vals AIAs of 10/26/2026
Legal Research BenchImmigration · Weighted partial credit · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 69.8%Grok 4.6: 85.4%Vals AIAs of 10/26/2026
Legal Research BenchOverall · Weighted partial credit · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 78.7%Grok 4.6: 88.3%Vals AIAs of 10/26/2026

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