Skip to main content

GPT-6.1 Terravs.Kimi K2.6

Which one is better?

GPT-6.1 Terra is clearly ahead in the overall index, but costs 1.1 times (input) and 1.3 times (output) as much per token.

IntelligenceOverall index, 0 to 100 · higher is better
67

GPT-6.1 Terra

Rank 12 to 27

15

Kimi K2.6

Rank 46 to 52

SpeedTokens per second · higher is better
91

GPT-6.1 Terra

fairly slow

58

Kimi K2.6

slow

PriceDollars per 1M tokens · lower is better
$2

GPT-6.1 Terra

fairly expensive

$1.71

Kimi K2.6

fairly expensive

GPT-6.1 Terra

Subscription

Subscriptions in Germany: n/a

Via API

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

Kimi K2.6

Subscription

At Moonshot AI from ≈ €20.14 a month (Kimi Plus, with limited credits). Through other providers from ≈ €1.06 a month (Command Code Go, with limited credits). 21 plans in Germany.

Via API

$0.95 input, $4 output per 1M tokens according to the provider; the price index has listed it at $0.75 and $3.50 since Sep 18, 2026.

Note
There is a successor: Kimi K3 (rank 18 to 24, $3 input, $15 output).

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: 5Kimi K2.6 ahead: 0level: 2too little data: 2of 9 areas

GPT-6.1 TerraKimi K2.60 to 100, higher is better
Areas in the overall index
CodingGPT-6.1 Terra aheadGPT-6.1 Terra: 84Kimi K2.6: 12
ReasoningGPT-6.1 Terra aheadGPT-6.1 Terra: 88Kimi K2.6: 16
KnowledgeGPT-6.1 Terra aheadGPT-6.1 Terra: 80Kimi K2.6: 17
AgentsGPT-6.1 Terra aheadGPT-6.1 Terra: 57Kimi K2.6: 14
Generalonly Kimi K2.6 has a scoreGPT-6.1 Terra: not enough dataKimi K2.6: 19
MultimodalGPT-6.1 Terra aheadGPT-6.1 Terra: 70Kimi K2.6: 28
Specialist fields
FinancelevelGPT-6.1 Terra: 45Kimi K2.6: 18
LegallevelGPT-6.1 Terra: 8Kimi K2.6: 10
Healthonly Kimi K2.6 has a scoreGPT-6.1 Terra: not enough dataKimi K2.6: 9
Show 1 more areas that do not count toward the overall index
GPT-6.1 TerraKimi K2.60 to 100, higher is better
Productivityonly Kimi K2.6 has a scoreGPT-6.1 Terra: not enough dataKimi K2.6: 8

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

Kimi K2.6

Output withheld for safety

Reasoning (requested): high

Current attempt
Run date
Oct 5, 2026
API provider
openrouter
Requested API model
moonshotai/kimi-k2.6
API model reported in response
moonshotai/kimi-k2.6
Reasoning setting
high
Pinned endpoint
Moonshot AI | moonshotai/kimi-k2.6-20260420
Temperature
Provider default
Token limit including reasoning
8,192 tokens
Test protocol
community-visual-tests-v1
Technical checks
Failed
Response time
124 s

Not yet visually reviewed. A successful recording does not confirm correct physics or full compliance with the prompt.

Earlier attempts (3)
  • Oct 2, 2026Output withheld for safetyReasoning setting: high
  • Oct 1, 2026Output withheld for safetyReasoning setting: high
  • 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 TerraKimi K2.6
Intelligence
Overall index0 to 100, higher is better6715
RankRank 12 to 27 of 95Rank 46 to 52 of 95
Price per 1M tokens
Inputwhat you send$1above 272,000 tokens: $2$0.95
Outputwhat the model writes$5above 272,000 tokens: $7.50$4
Speed
Tokens per second9158
Technical
Context windowhow much text the model reads at once1.05 M tokens≈ 1,580 A4 pages262,144 tokens≈ 390 A4 pages
Knowledge cutoffJun 1, 2026n/a
ReleasedOct 26, 2026Apr 20, 2026
AvailabilityActiveActive
Open weightsnoyes
  • 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: Kimi K2.6

CritPt v2Overall · higher is betterGPT-6.1 Terra: 4.9%Kimi K2.6: 1.4%Artificial AnalysisAs of 10/29/2026
Legal Research BenchOverall · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 26%Kimi K2.6: 15.9%Vals AIAs of 10/26/2026
Tax Agent BenchOverall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 15.2%Kimi K2.6: 12.4%Vals AIAs of 10/26/2026
Vibe Code Bench v1.1Overall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 84%Kimi K2.6: 37.9%Vals AIAs of 10/26/2026
Legal Research BenchAdministrative / Regulatory · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 45.5%Kimi K2.6: 18.2%Vals AIAs of 10/26/2026
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 5.9%Kimi K2.6: 3.3%Vals AIAs of 10/26/2026
Legal Research BenchAdministrative / Regulatory · Weighted partial credit · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 84.8%Kimi K2.6: 75.5%Vals AIAs of 10/26/2026
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 42.5%Kimi K2.6: 42.3%Vals AIAs of 10/26/2026
Legal Research BenchBusiness & Commercial · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 16.3%Kimi K2.6: 20.9%Vals AIAs of 10/26/2026
Tax Agent BenchCurrent & Temporal Analysis · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 22.1%Kimi K2.6: 26.5%Vals AIAs of 10/26/2026
Show 24 more benchmarks
Legal Research BenchBusiness & Commercial · Weighted partial credit · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 75.9%Kimi K2.6: 78.4%Vals AIAs of 10/26/2026
Tax Agent BenchCurrent & Temporal Analysis · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 53.1%Kimi K2.6: 51.2%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%Kimi K2.6: 18.5%Vals AIAs of 10/26/2026
Tax Agent BenchFact-Pattern Analysis · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 16.1%Kimi K2.6: 9.3%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%Kimi K2.6: 75.8%Vals AIAs of 10/26/2026
Tax Agent BenchFact-Pattern Analysis · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 47.2%Kimi K2.6: 46.7%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%Kimi K2.6: 21.1%Vals AIAs of 10/26/2026
Tax Agent BenchForms & Filings · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 12.6%Kimi K2.6: 3.3%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%Kimi K2.6: 79.2%Vals AIAs of 10/26/2026
Tax Agent BenchForms & Filings · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 51.7%Kimi K2.6: 37.6%Vals AIAs of 10/26/2026
Legal Research BenchCriminal · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 17.5%Kimi K2.6: 14%Vals AIAs of 10/26/2026
Tax Agent BenchNumbers & Calculations · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 19.1%Kimi K2.6: 23.3%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%Kimi K2.6: 75.1%Vals AIAs of 10/26/2026
Tax Agent BenchNumbers & Calculations · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 63.9%Kimi K2.6: 61.8%Vals AIAs of 10/26/2026
Legal Research BenchFamily · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 4.5%Kimi K2.6: 0%Vals AIAs of 10/26/2026
Tax Agent BenchRule & Source Lookup · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 14.9%Kimi K2.6: 10%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%Kimi K2.6: 61%Vals AIAs of 10/26/2026
Tax Agent BenchRule & Source Lookup · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 40.9%Kimi K2.6: 30.4%Vals AIAs of 10/26/2026
Legal Research BenchHealth · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 56.7%Kimi K2.6: 30%Vals AIAs of 10/26/2026
Tax Agent BenchWeighted Pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 49.7%Kimi K2.6: 45.1%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%Kimi K2.6: 81.7%Vals AIAs of 10/26/2026
Legal Research BenchImmigration · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 9.1%Kimi K2.6: 18.2%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%Kimi K2.6: 75.6%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%Kimi K2.6: 74.7%Vals AIAs of 10/26/2026

Compare another matchup