Skip to main content

GPT-6.1 Terravs.Kimi K3.1 Pro

Which one is better?

Kimi K3.1 Pro is clearly ahead in the overall index, but costs twice as much per token.

IntelligenceOverall index, 0 to 100 · higher is better
67

GPT-6.1 Terra

Rank 12 to 27

80

Kimi K3.1 Pro

Rank 10 to 13

SpeedTokens per second · higher is better
91

GPT-6.1 Terra

fairly slow

36

Kimi K3.1 Pro

slow

PriceDollars per 1M tokens · lower is better
$2

GPT-6.1 Terra

fairly expensive

$4

Kimi K3.1 Pro

fairly expensive

GPT-6.1 Terra

Subscription

Subscriptions in Germany: n/a

Via API

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

Kimi K3.1 Pro

Subscription

At Moonshot AI from ≈ €20.14 a month (Kimi Plus, with limited credits). 4 plans in Germany.

Via API

$2 input, $10 output per 1M tokens.

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: 0Kimi K3.1 Pro ahead: 3level: 3too little data: 3of 9 areas

GPT-6.1 TerraKimi K3.1 Pro0 to 100, higher is better
Areas in the overall index
CodinglevelGPT-6.1 Terra: 84Kimi K3.1 Pro: 85
ReasoninglevelGPT-6.1 Terra: 88Kimi K3.1 Pro: 80
Mathematicsonly Kimi K3.1 Pro has a scoreGPT-6.1 Terra: not enough dataKimi K3.1 Pro: 81
KnowledgeKimi K3.1 Pro aheadGPT-6.1 Terra: 80Kimi K3.1 Pro: 85
AgentsKimi K3.1 Pro aheadGPT-6.1 Terra: 57Kimi K3.1 Pro: 80
Generalonly Kimi K3.1 Pro has a scoreGPT-6.1 Terra: not enough dataKimi K3.1 Pro: 74
Multimodaltoo little dataGPT-6.1 Terra: 70Kimi K3.1 Pro: 75
Specialist fields
FinancelevelGPT-6.1 Terra: 45Kimi K3.1 Pro: 62
LegalKimi K3.1 Pro aheadGPT-6.1 Terra: 8Kimi K3.1 Pro: 68

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 K3.1 Pro

Not tested yet

Prompt and test conditions

Generate an SVG of a pelican riding a bicycle

Token limit including reasoning: 8,192 tokens

Task origin (Simon Willison)

All data side by side

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

MetricGPT-6.1 TerraKimi K3.1 Pro
Intelligence
Overall index0 to 100, higher is better6780
RankRank 12 to 27 of 95Rank 10 to 13 of 95
Price per 1M tokens
Inputwhat you send$1above 272,000 tokens: $2$2
Outputwhat the model writes$5above 272,000 tokens: $7.50$10
Speed
Tokens per second9136
Technical
Context windowhow much text the model reads at once1.05 M tokens≈ 1,580 A4 pages1.05 M tokens≈ 1,570 A4 pages
Knowledge cutoffJun 1, 2026n/a
ReleasedOct 26, 2026Oct 23, 2026
AvailabilityActiveActive
Open weightsnon/a
  • 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
  • Kimi K3.1 Pro, API price listed by Artificial Analysis: $2 input, $10 output, and $0.20 cached input per 1 million tokens. Kimi's official API publishes CNY rates separately. Source
  • Kimi K3.1 Pro, Official API pricing: K3.1 Pro: CNY 13 input, CNY 68 output, CNY 13 cache write, and CNY 1.30 cache hit per million tokens. Source
  • Kimi K3.1 Pro, Highspeed API pricing: CNY 26 input, CNY 136 output, CNY 26 cache write, and CNY 1.30 cache hit per million tokens. Source
  • Kimi K3.1 Pro, International API pricing in USD: The international Kimi platform lists $2 input, $10 output, $2 cache write and $0.20 cache hit per million tokens. Highspeed costs $4/$20/$4/$0.20. Checked October 29, 2026. Separately documented CNY tariffs remain separate observations. 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 K3.1 Pro

EMB v1.1Overall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 73.3%Kimi K3.1 Pro: 70%Vals AIAs of 10/26/2026
Finance Agent v2.1Overall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 56%Kimi K3.1 Pro: 61.5%Vals AIAs of 10/26/2026
HLAB-Vals-1.1Overall · Task fully resolved · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 1.7%Kimi K3.1 Pro: 11.7%Vals AIAs of 10/26/2026
Legal Research BenchOverall · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 26%Kimi K3.1 Pro: 37.5%Vals AIAs of 10/26/2026
Tax Agent BenchOverall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 15.2%Kimi K3.1 Pro: 24.9%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Overall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 49.5%Kimi K3.1 Pro: 63.6%Vals AIAs of 10/26/2026
Vals Finance IndexOverall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 52.9%Kimi K3.1 Pro: 56%Vals AIAs of 10/26/2026
Vals IndexOverall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 60.5%Kimi K3.1 Pro: 62.5%Vals AIAs of 10/27/2026
Vals Legal IndexOverall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 58.6%Kimi K3.1 Pro: 67%Vals AIAs of 10/26/2026
Vibe Code Bench v1.1Overall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 84%Kimi K3.1 Pro: 84.9%Vals AIAs of 10/26/2026
Show 54 more benchmarks
EMB v1.1Comps · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 75.6%Kimi K3.1 Pro: 67.4%Vals AIAs of 10/26/2026
Finance Agent v2.1Adjustments · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 50.6%Kimi K3.1 Pro: 57.4%Vals AIAs of 10/26/2026
HLAB-Vals-1.1Antitrust Competition · Criteria passed · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 83%Kimi K3.1 Pro: 90.4%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 K3.1 Pro: 56.1%Vals AIAs of 10/26/2026
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 5.9%Kimi K3.1 Pro: 10%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Hardware · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 26.7%Kimi K3.1 Pro: 40%Vals AIAs of 10/26/2026
Vals Finance IndexEMB v1.1 · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 73.3%Kimi K3.1 Pro: 70%Vals AIAs of 10/26/2026
Vals IndexCode Migration v1.1 · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 72.2%Kimi K3.1 Pro: 59.7%Vals AIAs of 10/27/2026
Vals Legal IndexBusiness & Commercial · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 51.6%Kimi K3.1 Pro: 59.8%Vals AIAs of 10/26/2026
EMB v1.1Dataroom · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 86.3%Kimi K3.1 Pro: 87.6%Vals AIAs of 10/26/2026
Finance Agent v2.1All-Pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 42.6%Kimi K3.1 Pro: 48.4%Vals AIAs of 10/26/2026
HLAB-Vals-1.1Antitrust Competition · Task fully resolved · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 0%Kimi K3.1 Pro: 0%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 K3.1 Pro: 81.9%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 K3.1 Pro: 58%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Media · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 58.3%Kimi K3.1 Pro: 58.3%Vals AIAs of 10/26/2026
Vals Finance IndexFinance Agent v2.1 · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 56%Kimi K3.1 Pro: 61.5%Vals AIAs of 10/26/2026
Vals IndexEMB v1.1 · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 73.3%Kimi K3.1 Pro: 70%Vals AIAs of 10/27/2026
Vals Legal IndexCivil Negligence · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 50.5%Kimi K3.1 Pro: 62.4%Vals AIAs of 10/26/2026
EMB v1.1DCF · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 64.3%Kimi K3.1 Pro: 64.4%Vals AIAs of 10/26/2026
Finance Agent v2.1Comparables · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 50.4%Kimi K3.1 Pro: 63.9%Vals AIAs of 10/26/2026
HLAB-Vals-1.1Arbitration International Dispute Resolution · Criteria passed · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 88.4%Kimi K3.1 Pro: 94.1%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 K3.1 Pro: 27.9%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 K3.1 Pro: 36.7%Vals AIAs of 10/26/2026
Terminal-Bench 4.0ML · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 42.4%Kimi K3.1 Pro: 81.8%Vals AIAs of 10/26/2026
Vals Finance IndexTax Agent Bench · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 15.2%Kimi K3.1 Pro: 24.9%Vals AIAs of 10/26/2026
Vals IndexFinance Agent v2.1 · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 56%Kimi K3.1 Pro: 61.5%Vals AIAs of 10/27/2026
Vals Legal IndexCriminal · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 51.3%Kimi K3.1 Pro: 60.3%Vals AIAs of 10/26/2026
EMB v1.1LBO · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 64.1%Kimi K3.1 Pro: 55.2%Vals AIAs of 10/26/2026
Finance Agent v2.1Disclosure Analysis · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 64.2%Kimi K3.1 Pro: 70.1%Vals AIAs of 10/26/2026
HLAB-Vals-1.1Arbitration International Dispute Resolution · Task fully resolved · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 0%Kimi K3.1 Pro: 10%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%Kimi K3.1 Pro: 66.3%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 K3.1 Pro: 64.8%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Operations · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 40.7%Kimi K3.1 Pro: 55.6%Vals AIAs of 10/26/2026
Vals IndexHLAB-Vals-1.1 · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 1.7%Kimi K3.1 Pro: 11.7%Vals AIAs of 10/27/2026
Vals Legal IndexFamily · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 4.5%Kimi K3.1 Pro: 13.6%Vals AIAs of 10/26/2026
EMB v1.1M&A · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 80.7%Kimi K3.1 Pro: 78.1%Vals AIAs of 10/26/2026
Finance Agent v2.1Earnings Analysis · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 83%Kimi K3.1 Pro: 78%Vals AIAs of 10/26/2026
HLAB-Vals-1.1Banking Finance · Criteria passed · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 90.1%Kimi K3.1 Pro: 94.4%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 K3.1 Pro: 29.6%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 K3.1 Pro: 27.9%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Science · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 54.8%Kimi K3.1 Pro: 73.8%Vals AIAs of 10/26/2026
Vals IndexLegal Research · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 26%Kimi K3.1 Pro: 37.5%Vals AIAs of 10/27/2026
Vals Legal IndexHLAB Criteria Pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 87.2%Kimi K3.1 Pro: 92.5%Vals AIAs of 10/26/2026
EMB v1.1Misc · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 67.5%Kimi K3.1 Pro: 68.1%Vals AIAs of 10/26/2026
Finance Agent v2.1Financial Modeling · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 35.1%Kimi K3.1 Pro: 46%Vals AIAs of 10/26/2026
HLAB-Vals-1.1Banking Finance · Task fully resolved · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 0%Kimi K3.1 Pro: 0%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 K3.1 Pro: 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 K3.1 Pro: 68.8%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Security · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 80%Kimi K3.1 Pro: 73.3%Vals AIAs of 10/26/2026
Vals IndexTax Agent · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 15.2%Kimi K3.1 Pro: 24.9%Vals AIAs of 10/27/2026
Vals Legal IndexLabor & Employment · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 82.4%Kimi K3.1 Pro: 90.3%Vals AIAs of 10/26/2026
EMB v1.1Operating · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 74.8%Kimi K3.1 Pro: 69.3%Vals AIAs of 10/26/2026
Finance Agent v2.1General Qualitative Analysis · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 63.8%Kimi K3.1 Pro: 70.8%Vals AIAs of 10/26/2026
HLAB-Vals-1.1Bankruptcy Restructuring · Criteria passed · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 83.4%Kimi K3.1 Pro: 91.9%Vals AIAs of 10/26/2026

Compare another matchup