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GPT-6.1 Terravs.GLM-5.3

Which one is better?

Level in the overall index: the gap is too small for a clear winner. GPT-6.1 Terra is cheaper for input, GLM-5.3 for output.

IntelligenceOverall index, 0 to 100 · higher is better
67

GPT-6.1 Terra

Rank 12 to 27

51

GLM-5.3

Rank 23 to 29

SpeedTokens per second · higher is better
91

GPT-6.1 Terra

fairly slow

76

GLM-5.3

fairly slow

PriceDollars per 1M tokens · lower is better
$2

GPT-6.1 Terra

fairly expensive

$2.15

GLM-5.3

fairly expensive

GPT-6.1 Terra

Subscription

Subscriptions in Germany: n/a

Via API

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

GLM-5.3

Subscription

At Z.ai from ≈ €19.08 a month (GLM Coding Plan Lite, with limited credits). Through other providers from ≈ €1.06 a month (Command Code Go, with limited credits). 37 plans in Germany.

Via API

$1.40 input, $4.40 output per 1M tokens according to the provider; the price index has listed it at $1.20 and $4 since Oct 19, 2026.

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: 3GLM-5.3 ahead: 1level: 2too little data: 4of 10 areas

GPT-6.1 TerraGLM-5.30 to 100, higher is better
Areas in the overall index
CodingGPT-6.1 Terra aheadGPT-6.1 Terra: 84GLM-5.3: 62
ReasoningGPT-6.1 Terra aheadGPT-6.1 Terra: 88GLM-5.3: 35
Mathematicsonly GLM-5.3 has a scoreGPT-6.1 Terra: not enough dataGLM-5.3: 38
KnowledgeGPT-6.1 Terra aheadGPT-6.1 Terra: 80GLM-5.3: 24
AgentslevelGPT-6.1 Terra: 57GLM-5.3: 51
Generalonly GLM-5.3 has a scoreGPT-6.1 Terra: not enough dataGLM-5.3: 60
Multimodalonly GPT-6.1 Terra has a scoreGPT-6.1 Terra: 70GLM-5.3: not enough data
Specialist fields
FinancelevelGPT-6.1 Terra: 45GLM-5.3: 67
LegalGLM-5.3 aheadGPT-6.1 Terra: 8GLM-5.3: 69
Healthonly GLM-5.3 has a scoreGPT-6.1 Terra: not enough dataGLM-5.3: 49
Show 2 more areas that do not count toward the overall index
GPT-6.1 TerraGLM-5.30 to 100, higher is better
Cybersecurityonly GLM-5.3 has a scoreGPT-6.1 Terra: not enough dataGLM-5.3: 66
Productivityonly GLM-5.3 has a scoreGPT-6.1 Terra: not enough dataGLM-5.3: 71

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

GLM-5.3

GLM-5.3: Pelican on a bicycle
A community classic for free-form SVG drawing.

Reasoning (requested): high

Current attempt
Run date
Oct 2, 2026
API provider
openrouter
Requested API model
z-ai/glm-5.3
API model reported in response
z-ai/glm-5.3
Reasoning setting
high
Pinned endpoint
Z.AI | z-ai/glm-5.3-20260816
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
20.4 s

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

Earlier attempts (2)
  • Oct 1, 2026API request failedReasoning 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 TerraGLM-5.3
Intelligence
Overall index0 to 100, higher is better6751
RankRank 12 to 27 of 95Rank 23 to 29 of 95
Price per 1M tokens
Inputwhat you send$1above 272,000 tokens: $2$1.40
Outputwhat the model writes$5above 272,000 tokens: $7.50$4.40
Speed
Tokens per second9176
Technical
Context windowhow much text the model reads at once1.05 M tokens≈ 1,580 A4 pages1 M tokens≈ 1,500 A4 pages
Knowledge cutoffJun 1, 2026n/a
ReleasedOct 26, 2026Aug 18, 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: GLM-5.3

AA-BriefcaseOverall · higher is betterGPT-6.1 Terra: 1,401.68 eloGLM-5.3: 1,503.99 eloArtificial AnalysisAs of 10/29/2026
AA-OmniscienceOverall · higher is betterGPT-6.1 Terra: 29.567 pointsGLM-5.3: 6.033 pointsArtificial AnalysisAs of 10/29/2026
AA-Omniscience AccuracyOverall · higher is betterGPT-6.1 Terra: 47.6%GLM-5.3: 32.3%Artificial AnalysisAs of 10/29/2026
AA-Omniscience Hallucination RateOverall · lower is betterGPT-6.1 Terra: 34.5%GLM-5.3: 38.9%Artificial AnalysisAs of 10/29/2026
Artificial Analysis Intelligence IndexOverall · higher is betterGPT-6.1 Terra: 50.977 pointsGLM-5.3: 31.653 pointsArtificial AnalysisAs of 10/29/2026
AutomationBench-AAOverall · higher is betterGPT-6.1 Terra: 60.2%GLM-5.3: 62.2%Artificial AnalysisAs of 10/29/2026
CritPt v2Overall · higher is betterGPT-6.1 Terra: 28.0%GLM-5.3: 19.1%Artificial AnalysisAs of 10/29/2026
CritPt v2 (Hard Subset)Overall · higher is betterGPT-6.1 Terra: 64.5%GLM-5.3: 33.5%Artificial AnalysisAs of 10/29/2026
EMB v1.1Overall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 73.3%GLM-5.3: 69.1%Vals AIAs of 10/26/2026
Finance Agent v2.1Overall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 56%GLM-5.3: 65%Vals AIAs of 10/26/2026
Show 54 more benchmarks
FrontierCodeOverall · higher is betterGPT-6.1 Terra: 42.3%GLM-5.3: 21.6%Artificial AnalysisAs of 10/29/2026
FrontierCode 1.1 MainOverall · higher is betterGPT-6.1 Terra: 36.0%GLM-5.3: 40.1%Artificial AnalysisAs of 10/29/2026
GDP.pdfOverall · higher is betterGPT-6.1 Terra: 28.6%GLM-5.3: 11.2%Artificial AnalysisAs of 10/29/2026
GDPval-AAOverall · higher is betterGPT-6.1 Terra: 1,476.05 eloGLM-5.3: 1,657.93 eloArtificial AnalysisAs of 10/29/2026
HLAB-Vals-1.1Overall · Task fully resolved · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 1.7%GLM-5.3: 14.6%Vals AIAs of 10/26/2026
HLE-DiamondOverall · higher is betterGPT-6.1 Terra: 47.3%GLM-5.3: 17.9%Artificial AnalysisAs of 10/29/2026
Legal Research BenchOverall · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 26%GLM-5.3: 49%Vals AIAs of 10/26/2026
Tax Agent BenchOverall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 15.2%GLM-5.3: 39.7%Vals AIAs of 10/26/2026
Terminal-BenchOverall · higher is betterGPT-6.1 Terra: 55.6%GLM-5.3: 41.9%Artificial AnalysisAs of 10/29/2026
Terminal-Bench 4.0Overall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 49.5%GLM-5.3: 38.9%Vals AIAs of 10/26/2026
Terminal-Bench-ScienceOverall · higher is betterGPT-6.1 Terra: 57.6%GLM-5.3: 9.5%Artificial AnalysisAs of 10/29/2026
Vals Finance IndexOverall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 52.9%GLM-5.3: 60.5%Vals AIAs of 10/26/2026
Vals IndexOverall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 60.5%GLM-5.3: 59.7%Vals AIAs of 10/27/2026
Vals Legal IndexOverall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 58.6%GLM-5.3: 74.6%Vals AIAs of 10/26/2026
Vibe Code Bench v1.1Overall · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 84%GLM-5.3: 78.1%Vals AIAs of 10/26/2026
AA-BriefcaseOverall · higher is betterGPT-6.1 Terra: 1,029.93 eloGLM-5.3: 1,184.39 eloArtificial AnalysisAs of 10/29/2026
AA-OmniscienceOverall · higher is betterGPT-6.1 Terra: 22.933 pointsGLM-5.3: -11.167 pointsArtificial AnalysisAs of 10/29/2026
AA-Omniscience AccuracyOverall · higher is betterGPT-6.1 Terra: 45.6%GLM-5.3: 31.9%Artificial AnalysisAs of 10/29/2026
AA-Omniscience Hallucination RateOverall · lower is betterGPT-6.1 Terra: 41.6%GLM-5.3: 63.2%Artificial AnalysisAs of 10/29/2026
Artificial Analysis Intelligence IndexOverall · higher is betterGPT-6.1 Terra: 29.217 pointsGLM-5.3: 23.058 pointsArtificial AnalysisAs of 10/29/2026
AutomationBench-AAOverall · higher is betterGPT-6.1 Terra: 56.2%GLM-5.3: 52.0%Artificial AnalysisAs of 10/29/2026
CritPt v2Overall · higher is betterGPT-6.1 Terra: 15.1%GLM-5.3: 14.6%Artificial AnalysisAs of 10/29/2026
CritPt v2 (Hard Subset)Overall · higher is betterGPT-6.1 Terra: 48.5%GLM-5.3: 21.0%Artificial AnalysisAs of 10/29/2026
EMB v1.1Comps · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 75.6%GLM-5.3: 67.6%Vals AIAs of 10/26/2026
Finance Agent v2.1Adjustments · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 50.6%GLM-5.3: 67.5%Vals AIAs of 10/26/2026
FrontierCodeOverall · higher is betterGPT-6.1 Terra: 24.5%GLM-5.3: 12.7%Artificial AnalysisAs of 10/29/2026
FrontierCode 1.1 MainOverall · higher is betterGPT-6.1 Terra: 36.3%GLM-5.3: 34.9%Artificial AnalysisAs of 10/29/2026
GDP.pdfOverall · higher is betterGPT-6.1 Terra: 25.6%GLM-5.3: 8.8%Artificial AnalysisAs of 10/29/2026
GDPval-AAOverall · higher is betterGPT-6.1 Terra: 1,204.16 eloGLM-5.3: 1,333.95 eloArtificial AnalysisAs of 10/29/2026
HLAB-Vals-1.1Antitrust Competition · Criteria passed · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 83%GLM-5.3: 93.5%Vals AIAs of 10/26/2026
HLE-DiamondOverall · higher is betterGPT-6.1 Terra: 24.9%GLM-5.3: 17.5%Artificial AnalysisAs of 10/29/2026
Legal Research BenchAdministrative / Regulatory · All-pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 45.5%GLM-5.3: 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%GLM-5.3: 19%Vals AIAs of 10/26/2026
Terminal-BenchOverall · higher is betterGPT-6.1 Terra: 15.2%GLM-5.3: 34.8%Artificial AnalysisAs of 10/29/2026
Terminal-Bench 4.0Hardware · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 26.7%GLM-5.3: 20%Vals AIAs of 10/26/2026
Terminal-Bench-ScienceOverall · higher is betterGPT-6.1 Terra: 7.6%GLM-5.3: 3.8%Artificial AnalysisAs of 10/29/2026
Vals Finance IndexEMB v1.1 · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 73.3%GLM-5.3: 69.1%Vals AIAs of 10/26/2026
Vals IndexCode Migration v1.1 · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 72.2%GLM-5.3: 54.1%Vals AIAs of 10/27/2026
Vals Legal IndexBusiness & Commercial · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 51.6%GLM-5.3: 70%Vals AIAs of 10/26/2026
EMB v1.1Dataroom · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 86.3%GLM-5.3: 81.6%Vals AIAs of 10/26/2026
Finance Agent v2.1All-Pass · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 42.6%GLM-5.3: 51.9%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%GLM-5.3: 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%GLM-5.3: 91.1%Vals AIAs of 10/26/2026
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 42.5%GLM-5.3: 71.1%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Media · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 58.3%GLM-5.3: 50%Vals AIAs of 10/26/2026
Vals Finance IndexFinance Agent v2.1 · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 56%GLM-5.3: 65%Vals AIAs of 10/26/2026
Vals IndexEMB v1.1 · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 73.3%GLM-5.3: 69.1%Vals AIAs of 10/27/2026
Vals Legal IndexCivil Negligence · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 50.5%GLM-5.3: 75%Vals AIAs of 10/26/2026
EMB v1.1DCF · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 64.3%GLM-5.3: 63.7%Vals AIAs of 10/26/2026
Finance Agent v2.1Comparables · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 50.4%GLM-5.3: 58.5%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%GLM-5.3: 95.5%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%GLM-5.3: 46.5%Vals AIAs of 10/26/2026
Tax Agent BenchCurrent & Temporal Analysis · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 22.1%GLM-5.3: 53.2%Vals AIAs of 10/26/2026
Terminal-Bench 4.0ML · higher is betterTest setup not documented as identicalGPT-6.1 Terra: 42.4%GLM-5.3: 54.5%Vals AIAs of 10/26/2026

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