Claude Sonnet 5vs.GPT-6.1 Terra
Which one is better?
GPT-6.1 Terra is clearly ahead in the overall index and is cheaper too: Claude Sonnet 5 costs twice as much per token.
29
Claude Sonnet 5
Rank 35 to 43
67
GPT-6.1 Terra
Rank 12 to 27
86
Claude Sonnet 5
fairly slow
91
GPT-6.1 Terra
fairly slow
$4
Claude Sonnet 5
fairly expensive
$2
GPT-6.1 Terra
fairly expensive
Claude Sonnet 5
- Subscription
At Anthropic from €21.42 a month (Claude Pro). Through other providers from ≈ €6.36 a month (ElevenLabs Starter, with limited credits). 57 plans in Germany.
- Via API
$2 input, $10 output per 1M tokens according to the provider; the price index has listed it at $2.20 and $11 since Oct 15, 2026.
- Note
- There is a successor: Claude Sonnet 5.5 (rank 2 to 6, same price).
GPT-6.1 Terra
- Subscription
Subscriptions in Germany: n/a
- Via API
$1 input, $5 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.
Sonnet 5 ahead: 0GPT-6.1 Terra ahead: 4level: 3too little data: 3of 10 areas
AreaSonnet 5GPT-6.1 Terra0 to 100, higher is betterResult
Areas in the overall index
CodingGPT-6.1 Terra aheadSonnet 5: 34GPT-6.1 Terra: 84
ReasoningGPT-6.1 Terra aheadSonnet 5: 27GPT-6.1 Terra: 88
Mathematicsonly Sonnet 5 has a scoreSonnet 5: 32GPT-6.1 Terra: not enough data
KnowledgeGPT-6.1 Terra aheadSonnet 5: 15GPT-6.1 Terra: 80
AgentslevelSonnet 5: 36GPT-6.1 Terra: 57
Generalonly Sonnet 5 has a scoreSonnet 5: 20GPT-6.1 Terra: not enough data
MultimodalGPT-6.1 Terra aheadSonnet 5: 23GPT-6.1 Terra: 70
Specialist fields
FinancelevelSonnet 5: 55GPT-6.1 Terra: 45
LegallevelSonnet 5: 42GPT-6.1 Terra: 8
Healthonly Sonnet 5 has a scoreSonnet 5: 24GPT-6.1 Terra: not enough data
Show 2 more areas that do not count toward the overall index
AreaSonnet 5GPT-6.1 Terra0 to 100, higher is betterResult
Cybersecurityonly Sonnet 5 has a scoreSonnet 5: 28GPT-6.1 Terra: not enough data
Productivityonly Sonnet 5 has a scoreSonnet 5: 48GPT-6.1 Terra: not enough data
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.
Claude Sonnet 5
Reasoning (requested): high
Current attempt
- Run date
- Sep 7, 2026
- API provider
- openrouter
- Requested API model
- anthropic/claude-sonnet-5
- API model reported in response
- anthropic/claude-sonnet-5
- Reasoning setting
- high
- Pinned endpoint
- Anthropic | anthropic/claude-sonnet-5-20260630
- 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
- 47.9 s
Visually reviewed. This individual test does not establish overall model quality.
GPT-6.1 Terra
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)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.
| Metric | Claude Sonnet 5 | GPT-6.1 Terra |
|---|---|---|
| Intelligence | ||
| Overall index0 to 100, higher is better | 29 | 67 |
| Rank | Rank 35 to 43 of 95 | Rank 12 to 27 of 95 |
| Price per 1M tokens | ||
| Inputwhat you send | $2 | $1above 272,000 tokens: $2 |
| Outputwhat the model writes | $10 | $5above 272,000 tokens: $7.50 |
| Speed | ||
| Tokens per second | 86 | 91 |
| Technical | ||
| Context windowhow much text the model reads at once | 1 M tokens≈ 1,500 A4 pages | 1.05 M tokens≈ 1,580 A4 pages |
| Knowledge cutoff | January 2026 | Jun 1, 2026 |
| Released | Jun 30, 2026 | Oct 26, 2026 |
| Availability | Active | Active |
| Open weights | no | no |
- 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: Claude Sonnet 5B: GPT-6.1 Terra
CritPt v2Overall · higher is betterClaude Sonnet 5: 4.6%GPT-6.1 Terra: 15.1%Artificial AnalysisAs of 10/29/2026
GDPval-AAOverall · higher is betterClaude Sonnet 5: 1,076.24 eloGPT-6.1 Terra: 1,204.16 eloArtificial AnalysisAs of 10/29/2026
Legal Research BenchOverall · All-pass · higher is betterTest setup not documented as identicalClaude Sonnet 5: 41.8%GPT-6.1 Terra: 26%Vals AIAs of 10/26/2026
MMMU-ProOverall · higher is betterClaude Sonnet 5: 77.3%GPT-6.1 Terra: 84.7%Artificial AnalysisAs of 10/29/2026
Tax Agent BenchOverall · higher is betterTest setup not documented as identicalClaude Sonnet 5: 29.4%GPT-6.1 Terra: 15.2%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Overall · higher is betterTest setup not documented as identicalClaude Sonnet 5: 10.6%GPT-6.1 Terra: 49.5%Vals AIAs of 10/26/2026
Vibe Code Bench v1.1Overall · higher is betterTest setup not documented as identicalClaude Sonnet 5: 81.3%GPT-6.1 Terra: 84%Vals AIAs of 10/26/2026
CritPt v2Overall · higher is betterClaude Sonnet 5: 16.9%GPT-6.1 Terra: 28.0%Artificial AnalysisAs of 10/29/2026
GDPval-AAOverall · higher is betterClaude Sonnet 5: 1,471.16 eloGPT-6.1 Terra: 1,476.05 eloArtificial AnalysisAs of 10/29/2026
Legal Research BenchAdministrative / Regulatory · All-pass · higher is betterTest setup not documented as identicalClaude Sonnet 5: 54.5%GPT-6.1 Terra: 45.5%Vals AIAs of 10/26/2026
Show 42 more benchmarks
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalClaude Sonnet 5: 10%GPT-6.1 Terra: 5.9%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Hardware · higher is betterTest setup not documented as identicalClaude Sonnet 5: 0%GPT-6.1 Terra: 26.7%Vals AIAs of 10/26/2026
CritPt v2Overall · higher is betterClaude Sonnet 5: 15.4%GPT-6.1 Terra: 26.6%Artificial AnalysisAs of 10/29/2026
GDPval-AAOverall · higher is betterClaude Sonnet 5: 1,366.65 eloGPT-6.1 Terra: 1,415.29 eloArtificial AnalysisAs of 10/29/2026
Legal Research BenchAdministrative / Regulatory · Weighted partial credit · higher is betterTest setup not documented as identicalClaude Sonnet 5: 87.8%GPT-6.1 Terra: 84.8%Vals AIAs of 10/26/2026
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalClaude Sonnet 5: 57.4%GPT-6.1 Terra: 42.5%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Media · higher is betterTest setup not documented as identicalClaude Sonnet 5: 8.3%GPT-6.1 Terra: 58.3%Vals AIAs of 10/26/2026
CritPt v2Overall · higher is betterClaude Sonnet 5: 15.1%GPT-6.1 Terra: 25.7%Artificial AnalysisAs of 10/29/2026
GDPval-AAOverall · higher is betterClaude Sonnet 5: 1,262.93 eloGPT-6.1 Terra: 1,353.15 eloArtificial AnalysisAs of 10/29/2026
Legal Research BenchBusiness & Commercial · All-pass · higher is betterTest setup not documented as identicalClaude Sonnet 5: 32.6%GPT-6.1 Terra: 16.3%Vals AIAs of 10/26/2026
Tax Agent BenchCurrent & Temporal Analysis · higher is betterTest setup not documented as identicalClaude Sonnet 5: 30%GPT-6.1 Terra: 22.1%Vals AIAs of 10/26/2026
Terminal-Bench 4.0ML · higher is betterTest setup not documented as identicalClaude Sonnet 5: 18.2%GPT-6.1 Terra: 42.4%Vals AIAs of 10/26/2026
CritPt v2Overall · higher is betterClaude Sonnet 5: 8.6%GPT-6.1 Terra: 21.4%Artificial AnalysisAs of 10/29/2026
GDPval-AAOverall · higher is betterClaude Sonnet 5: 1,167.05 eloGPT-6.1 Terra: 1,325.12 eloArtificial AnalysisAs of 10/29/2026
Legal Research BenchBusiness & Commercial · Weighted partial credit · higher is betterTest setup not documented as identicalClaude Sonnet 5: 86.8%GPT-6.1 Terra: 75.9%Vals AIAs of 10/26/2026
Tax Agent BenchCurrent & Temporal Analysis · higher is betterTest setup not documented as identicalClaude Sonnet 5: 60%GPT-6.1 Terra: 53.1%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Operations · higher is betterTest setup not documented as identicalClaude Sonnet 5: 11.1%GPT-6.1 Terra: 40.7%Vals AIAs of 10/26/2026
Legal Research BenchCivil Litigation · All-pass · higher is betterTest setup not documented as identicalClaude Sonnet 5: 44.4%GPT-6.1 Terra: 14.8%Vals AIAs of 10/26/2026
Tax Agent BenchFact-Pattern Analysis · higher is betterTest setup not documented as identicalClaude Sonnet 5: 27.1%GPT-6.1 Terra: 16.1%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Science · higher is betterTest setup not documented as identicalClaude Sonnet 5: 11.9%GPT-6.1 Terra: 54.8%Vals AIAs of 10/26/2026
Legal Research BenchCivil Litigation · Weighted partial credit · higher is betterTest setup not documented as identicalClaude Sonnet 5: 88.7%GPT-6.1 Terra: 80.6%Vals AIAs of 10/26/2026
Tax Agent BenchFact-Pattern Analysis · higher is betterTest setup not documented as identicalClaude Sonnet 5: 59.9%GPT-6.1 Terra: 47.2%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Security · higher is betterTest setup not documented as identicalClaude Sonnet 5: 0%GPT-6.1 Terra: 80%Vals AIAs of 10/26/2026
Legal Research BenchConstitutional / Civil Rights · All-pass · higher is betterTest setup not documented as identicalClaude Sonnet 5: 44.7%GPT-6.1 Terra: 23.7%Vals AIAs of 10/26/2026
Tax Agent BenchForms & Filings · higher is betterTest setup not documented as identicalClaude Sonnet 5: 19.9%GPT-6.1 Terra: 12.6%Vals AIAs of 10/26/2026
Terminal-Bench 4.0Software · higher is betterTest setup not documented as identicalClaude Sonnet 5: 11.1%GPT-6.1 Terra: 50%Vals AIAs of 10/26/2026
Legal Research BenchConstitutional / Civil Rights · Weighted partial credit · higher is betterTest setup not documented as identicalClaude Sonnet 5: 87%GPT-6.1 Terra: 78%Vals AIAs of 10/26/2026
Tax Agent BenchForms & Filings · higher is betterTest setup not documented as identicalClaude Sonnet 5: 65.2%GPT-6.1 Terra: 51.7%Vals AIAs of 10/26/2026
Legal Research BenchCriminal · All-pass · higher is betterTest setup not documented as identicalClaude Sonnet 5: 40.4%GPT-6.1 Terra: 17.5%Vals AIAs of 10/26/2026
Tax Agent BenchNumbers & Calculations · higher is betterTest setup not documented as identicalClaude Sonnet 5: 47%GPT-6.1 Terra: 19.1%Vals AIAs of 10/26/2026
Legal Research BenchCriminal · Weighted partial credit · higher is betterTest setup not documented as identicalClaude Sonnet 5: 84.1%GPT-6.1 Terra: 76.2%Vals AIAs of 10/26/2026
Tax Agent BenchNumbers & Calculations · higher is betterTest setup not documented as identicalClaude Sonnet 5: 70.6%GPT-6.1 Terra: 63.9%Vals AIAs of 10/26/2026
Legal Research BenchFamily · All-pass · higher is betterTest setup not documented as identicalClaude Sonnet 5: 18.2%GPT-6.1 Terra: 4.5%Vals AIAs of 10/26/2026
Tax Agent BenchRule & Source Lookup · higher is betterTest setup not documented as identicalClaude Sonnet 5: 43.1%GPT-6.1 Terra: 14.9%Vals AIAs of 10/26/2026
Legal Research BenchFamily · Weighted partial credit · higher is betterTest setup not documented as identicalClaude Sonnet 5: 72.2%GPT-6.1 Terra: 64.8%Vals AIAs of 10/26/2026
Tax Agent BenchRule & Source Lookup · higher is betterTest setup not documented as identicalClaude Sonnet 5: 61.5%GPT-6.1 Terra: 40.9%Vals AIAs of 10/26/2026
Legal Research BenchHealth · All-pass · higher is betterTest setup not documented as identicalClaude Sonnet 5: 63.3%GPT-6.1 Terra: 56.7%Vals AIAs of 10/26/2026
Tax Agent BenchWeighted Pass · higher is betterTest setup not documented as identicalClaude Sonnet 5: 62.3%GPT-6.1 Terra: 49.7%Vals AIAs of 10/26/2026
Legal Research BenchHealth · Weighted partial credit · higher is betterTest setup not documented as identicalClaude Sonnet 5: 92.1%GPT-6.1 Terra: 92.8%Vals AIAs of 10/26/2026
Legal Research BenchImmigration · All-pass · higher is betterTest setup not documented as identicalClaude Sonnet 5: 36.4%GPT-6.1 Terra: 9.1%Vals AIAs of 10/26/2026
Legal Research BenchImmigration · Weighted partial credit · higher is betterTest setup not documented as identicalClaude Sonnet 5: 79.2%GPT-6.1 Terra: 69.8%Vals AIAs of 10/26/2026
Legal Research BenchOverall · Weighted partial credit · higher is betterTest setup not documented as identicalClaude Sonnet 5: 84.6%GPT-6.1 Terra: 78.7%Vals AIAs of 10/26/2026
Compare another matchup
More matchups
Related LLM comparisons
Compare Claude Sonnet 5 and GPT-6.1 Terra with other leading models.