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AnthropicOpenAILLM matchup

Claude Opus 4.8vs.GPT-6 Luna

Which one is better?

Claude Opus 4.8 and GPT-6 Luna perform about equally well, but Claude Opus 4.8 costs 50 times as much.

level
IntelligenceOverall index, 100 points = average
99.0

Claude Opus 4.8

Rank 30

96.3

GPT-6 Luna

Rank 35

GPT-6 Luna faster
SpeedTokens per second
82

Claude Opus 4.8

101

GPT-6 Luna

GPT-6 Luna cheaper
Price$ per 1M tokens
$10

Claude Opus 4.8

$0.20

GPT-6 Luna

GPT-6 Luna more popular
Popularity0 to 100
36

Claude Opus 4.8

Rank 380 of 785

60

GPT-6 Luna

Rank 30 of 785

Above 272,000 tokens of context, GPT-6 Luna costs more: $0.20 input and $0.75 output per 1M tokens.

Choose Claude Opus 4.8 for

SearchProductivityKnowledgeLegalHealthMultimodalAgentsCodingFinance (not certain)

Choose GPT-6 Luna for

Reasoning (not certain)

Where is the difference?

Strengths at a glance

Opus 4.8GPT-6 LunaMedian of all ranked models

9010011080CodingOpus 4.8ReasoningslightlyGPT-6 LunaKnowledgeOpus 4.8AgentsOpus 4.8MultimodalOpus 4.8Financeslightly Opus4.8LegalOpus 4.8HealthOpus 4.8
CodingOpus 4.8 ahead
Opus 4.8100.7Rank 24
GPT-6 Luna97.5Rank 35
Median of ranked models84.1

95 % range: Opus 4.8 97.3 to 104.2, GPT-6 Luna 94.5 to 100.5.

AreaOpus 4.8GPT-6 Luna

The same values and verdicts as the bars below. In the close-up the net starts at 80 points, just below the weaker model's lowest value; the reference group average is 100. Not in the net because a model has no own value there or the data are too thin: Mathematics, General.

Opus 4.8 is ahead in 6 of 10 areas, GPT-6 Luna in none.

Opus 4.8 ahead: 6Opus 4.8 slightly ahead: 1too little data: 2GPT-6 Luna slightly ahead: 1

Areas in the overall index
KnowledgeOpus 4.8 +11100.0 to 89.2
MultimodalOpus 4.8 +798.9 to 92.0
AgentsOpus 4.8 +3102.9 to 99.5
CodingOpus 4.8 +3100.7 to 97.5
Reasoningleaning GPT-6 Lunanot certain · 2 and 4 tests
Generaltoo little data90.9 to 94.4
Mathematicsonly GPT-6 Luna has a score
Specialist fields
LegalOpus 4.8 +999.9 to 90.7
HealthOpus 4.8 +9104.0 to 95.2
Financeleaning Opus 4.8not certain · 6 and 5 tests

Bar length shows the gap in index points (full width 15 points, one standard deviation of the reference group). Solid means clearly ahead, hatched not certain yet, a thin grey bar level.

Show 4 more areas that do not count toward the overall index
SearchOpus 4.8 +1497.7 to 83.3
ProductivityOpus 4.8 +14104.1 to 90.5
Cybersecurityonly GPT-6 Luna has a score
Educationonly GPT-6 Luna has a score

Bar length shows the gap in index points (full width 15 points, one standard deviation of the reference group). Solid means clearly ahead, hatched not certain yet, a thin grey bar level.

Which model for which task?

Everyday tasks, translated from the area values above. Each row names the values it rests on.

Writing and debugging codeOpus 4.8Coding 100.7 to 97.5
Maths and data analysisleaning GPT-6 LunaMathematics without a score for Opus 4.8, Reasoning 89.8 to 97.8
Facts and researchOpus 4.8Knowledge 100.0 to 89.2, Search 97.7 to 83.3
Agents and workflowsOpus 4.8Agents 102.9 to 99.5
Fast chat repliesGPT-6 Luna82 to 101 tokens per second
Security analysisopenCybersecurity without a score for Opus 4.8
Many requests on a small budgetGPT-6 Luna$10 to $0.20 per 1M tokens
Finance, legal and medical textsOpus 4.8Finance 103.2 to 98.3, Legal 99.9 to 90.7, Health 104.0 to 95.2
Images, screenshots and PDFsOpus 4.8Multimodal 98.9 to 92.0

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

Prompt

Generate an SVG of a pelican riding a bicycle

Task origin: Simon Willison

Claude Opus 4.8

Claude Opus 4.8: Pelican on a bicycle
A community classic for free-form SVG drawing.

Oct 1, 2026 · 18 s · $0.04

Test details
Run date
Oct 1, 2026
API provider
openrouter
Requested API model
anthropic/claude-opus-4.8
Reasoning setting
high
Token limit including reasoning
8,192 tokens
Output tokens
1,659 tokens
Cost of the attempt
$0.0416
Response time
18 s
API model reported in response
anthropic/claude-opus-4.8
Pinned endpoint
Anthropic | anthropic/claude-4.8-opus-20260528
Temperature
Provider default
Test protocol
community-visual-tests-v1
Technical checks
Passed, not a quality rating

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

GPT-6 Luna

GPT-6 Luna: Pelican on a bicycle
A community classic for free-form SVG drawing.

Oct 1, 2026 · 47 s · $0.0022

Test details
Run date
Oct 1, 2026
API provider
openrouter
Requested API model
openai/gpt-6-luna
Reasoning setting
high
Token limit including reasoning
8,192 tokens
Output tokens
4,493 tokens
Cost of the attempt
$0.0022
Response time
46.7 s
API model reported in response
openai/gpt-6-luna
Pinned endpoint
OpenAI | openai/gpt-6-luna-20260922
Temperature
Provider default
Test protocol
community-visual-tests-v1
Technical checks
Passed, not a quality rating

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

SVG short test

SVG short test

One SVG task with the same fixed settings for every model, without hidden thinking.

Prompt

Return only one standalone SVG of a pelican riding a bicycle. Use viewBox="0 0 800 600", simple shapes, two clearly visible wheels and a recognizable pelican with a long beak. At most 30 SVG elements and 1800 characters. No Markdown, explanations, comments, scripts, animation, CSS or external resources.

Claude Opus 4.8

Unavailable in this round

GPT-6 Luna

Unavailable in this round

Claude Opus 4.8 and GPT-6 Luna in the overall index

Every model with a place in the overall index, both models of this matchup highlighted. You can add or hide other models.

Overall index (Gradually Meta-Score v4)

20 of 92 models

4 models in this view are measured at a lower reasoning effort than max in the overall index. Dashed column: lower reasoning effort than the top.

Claude Opus 5.5max126.1
Gemini 4 Carbonhigh125.8
Claude Fable 5.1max123.8
Claude Sonnet 5.5max122.8
Gemini 4 Argonhigh122.3
GPT-6 Astramax121.3
GPT-6.1 Solmax119.2
Muse Wonder Fullmax118.3
Claude Opus 5max117.2
Muse Wondermax113.4
Kimi K3.1 Promax112.9
Claude Fable 5max112.5
GPT-6 Solmax110.5
GPT-5.6 Solmax108.7
Muse Spark 1.3max107.4
Gemini 3.7 Flashhigh107.1
DeepSeek V4.1 Flash 1017max106.6
Gemini 3.8 Flashhigh106.5
Claude Opus 4.8max99.0
GPT-6 Lunamax96.3

Popularity compared

How often the models are searched for, used and mentioned, on a scale from 0 to 100.

GPT-6 Luna is more popular than Claude Opus 4.8: 60 to 36 out of 100.

Over time

Weekly values from October 18, 2026 to November 7, 2026

Claude Opus 4.8GPT-6 Luna

All data side by side

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

MetricClaude Opus 4.8GPT-6 Luna
Intelligence
Overall indexpoints, 100 = reference group average, higher is better99.096.3
RankRank 30 of 92Rank 35 of 92
Price per 1M tokens
Inputwhat you send$5$0.10above 272,000 tokens: $0.20
Outputwhat the model writes$25$0.50above 272,000 tokens: $0.75
Cost per task (own tests)average of 3 original-protocol tasks both models passed (SVG short test not included)$0.055$0.003
Speed
Tokens per second82101
Popularity
Popularitysearch, usage and mentions, 0 to 10036Rank 380 of 78560Rank 30 of 785
Technical
Context windowhow much text the model reads at once1 M tokens≈ 1,500 A4 pages1.05 M tokens≈ 1,580 A4 pages
Knowledge cutoffJanuary 2026May 18, 2026
ReleasedMay 2026Sep 22, 2026
AvailabilityLegacyActive
Open weightsnono

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

Is there a better choice?

Successor of Opus 4.8Claude Opus 5

Overall index 117.2, rank 9$5 input and $25 output per 1M tokens

GPT-6 Luna vs. Claude Opus 5
As cheap as GPT-6 LunaClaude Haiku 5.5

Overall index 103.4, rank 20$0.10 input and $0.50 output per 1M tokens

Opus 4.8 vs. Claude Haiku 5.5
Best model in the overall indexClaude Opus 5.5

Overall index 126.1, rank 1$4 input and $20 output per 1M tokens

Opus 4.8 vs. Claude Opus 5.5

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 Opus 4.8B: GPT-6 Luna

AA-AnalystAgentOverall · higher is betterClaude Opus 4.8: 45.0%GPT-6 Luna: 43.8%Artificial AnalysisAs of 11/07/2026
Code MigrationOverall · higher is betterTest setup not documented as identicalClaude Opus 4.8: 47.3%GPT-6 Luna: 42.6%Vals AIAs of 10/29/2026
EMBOverall · higher is betterTest setup not documented as identicalClaude Opus 4.8: 69.4%GPT-6 Luna: 68.5%Vals AIAs of 10/20/2026
Finance Agent (v2)Overall · higher is betterTest setup not documented as identicalClaude Opus 4.8: 53.9%GPT-6 Luna: 49.9%Vals AIAs of 10/29/2026
GDPval-AAOverall · higher is betterClaude Opus 4.8: 1,461.8 eloGPT-6 Luna: 1,444.5 eloArtificial AnalysisAs of 11/07/2026
Legal Research BenchOverall · All-pass · higher is betterTest setup not documented as identicalClaude Opus 4.8: 43.8%GPT-6 Luna: 30.3%Vals AIAs of 11/05/2026
LMArena Code Arena WebDevOverall · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1,556GPT-6 Luna: 1,579LMArenaAs of 10/28/2026
LMArena SearchOverall · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1,204GPT-6 Luna: 1,160LMArenaAs of 10/13/2026
LMArena Text, Style ControlOverall · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1,482GPT-6 Luna: 1,441LMArenaAs of 10/28/2026
LMArena Vision, Style ControlOverall · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1,286GPT-6 Luna: 1,240LMArenaAs of 10/19/2026
Show 54 more benchmarks
MedCodeOverall · higher is betterTest setup not documented as identicalClaude Opus 4.8: 53.2%GPT-6 Luna: 44.7%Vals AIAs of 10/29/2026
MedScribeOverall · higher is betterTest setup not documented as identicalClaude Opus 4.8: 85.8%GPT-6 Luna: 83.7%Vals AIAs of 10/29/2026
ProgramBenchOverall · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1.0%GPT-6 Luna: 0.5%Vals AIAs of 11/05/2026
Public Benefits Bench v1.1Overall · higher is betterTest setup not documented as identicalClaude Opus 4.8: 68.1%GPT-6 Luna: 57.6%Vals AIAs of 10/12/2026
Tax Agent BenchOverall · higher is betterTest setup not documented as identicalClaude Opus 4.8: 30.0%GPT-6 Luna: 19.9%Vals AIAs of 11/05/2026
Terminal-Bench 4.0Overall · higher is betterTest setup not documented as identicalClaude Opus 4.8: 23.2%GPT-6 Luna: 13.6%Vals AIAs of 11/05/2026
Terminal-Bench-ScienceOverall · higher is betterTest setup not documented as identicalClaude Opus 4.8: 4.3%GPT-6 Luna: 4.3%Vals AIAs of 11/05/2026
Vibe Code Bench v1.1Overall · higher is betterTest setup not documented as identicalClaude Opus 4.8: 82.7%GPT-6 Luna: 81.6%Vals AIAs of 11/05/2026
Code MigrationCLI · higher is betterTest setup not documented as identicalClaude Opus 4.8: 40.1%GPT-6 Luna: 37.2%Vals AIAs of 10/29/2026
EMBComps · higher is betterTest setup not documented as identicalClaude Opus 4.8: 72.8%GPT-6 Luna: 70.5%Vals AIAs of 10/20/2026
Finance Agent (v2)Adjustments · higher is betterTest setup not documented as identicalClaude Opus 4.8: 48.4%GPT-6 Luna: 49.8%Vals AIAs of 10/29/2026
Legal Research BenchAdministrative / Regulatory · All-pass · higher is betterTest setup not documented as identicalClaude Opus 4.8: 43.9%GPT-6 Luna: 37.9%Vals AIAs of 11/05/2026
LMArena Code Arena WebDevHTML development · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1,543GPT-6 Luna: 1,595LMArenaAs of 10/28/2026
LMArena Text, Style ControlBusiness, management and finance · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1,489GPT-6 Luna: 1,441LMArenaAs of 10/28/2026
LMArena Vision, Style ControlChinese · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1,331GPT-6 Luna: 1,292LMArenaAs of 10/19/2026
ProgramBenchAlmost Resolved · higher is betterTest setup not documented as identicalClaude Opus 4.8: 15.5%GPT-6 Luna: 8.0%Vals AIAs of 11/05/2026
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalClaude Opus 4.8: 13.1%GPT-6 Luna: 6.7%Vals AIAs of 11/05/2026
Terminal-Bench 4.0Hardware · higher is betterTest setup not documented as identicalClaude Opus 4.8: 26.7%GPT-6 Luna: 0.0%Vals AIAs of 11/05/2026
Terminal-Bench-ScienceEarth Sciences · higher is betterTest setup not documented as identicalClaude Opus 4.8: 0%GPT-6 Luna: 0%Vals AIAs of 11/05/2026
Code MigrationCOBOL · higher is betterTest setup not documented as identicalClaude Opus 4.8: 68.6%GPT-6 Luna: 58.6%Vals AIAs of 10/29/2026
EMBDataroom · higher is betterTest setup not documented as identicalClaude Opus 4.8: 85.9%GPT-6 Luna: 75.5%Vals AIAs of 10/20/2026
Finance Agent (v2)All-Pass · higher is betterTest setup not documented as identicalClaude Opus 4.8: 43.5%GPT-6 Luna: 38.4%Vals AIAs of 10/29/2026
Legal Research BenchAdministrative / Regulatory · Weighted partial credit (weighted pass) · higher is betterTest setup not documented as identicalClaude Opus 4.8: 87.4%GPT-6 Luna: 83.2%Vals AIAs of 11/05/2026
LMArena Code Arena WebDevReact development · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1,557GPT-6 Luna: 1,575LMArenaAs of 10/28/2026
LMArena Text, Style ControlChinese · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1,526GPT-6 Luna: 1,483LMArenaAs of 10/28/2026
LMArena Vision, Style ControlCreative writing with images · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1,289GPT-6 Luna: 1,232LMArenaAs of 10/19/2026
ProgramBenchFully Resolved · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1.0%GPT-6 Luna: 0.5%Vals AIAs of 11/05/2026
Tax Agent BenchControversy & Precedence Analysis (weighted pass) · higher is betterTest setup not documented as identicalClaude Opus 4.8: 58.7%GPT-6 Luna: 54.4%Vals AIAs of 11/05/2026
Terminal-Bench 4.0Media · higher is betterTest setup not documented as identicalClaude Opus 4.8: 0.0%GPT-6 Luna: 16.7%Vals AIAs of 11/05/2026
Terminal-Bench-ScienceEngineering Sciences · higher is betterTest setup not documented as identicalClaude Opus 4.8: 0.0%GPT-6 Luna: 11.1%Vals AIAs of 11/05/2026
Code MigrationCode Quality · higher is betterTest setup not documented as identicalClaude Opus 4.8: 4.7 / 5GPT-6 Luna: 3.752 / 5Vals AIAs of 10/29/2026
EMBDCF · higher is betterTest setup not documented as identicalClaude Opus 4.8: 66.3%GPT-6 Luna: 62.8%Vals AIAs of 10/20/2026
Finance Agent (v2)Comparables · higher is betterTest setup not documented as identicalClaude Opus 4.8: 44.9%GPT-6 Luna: 39.8%Vals AIAs of 10/29/2026
Legal Research BenchBusiness & Commercial · All-pass · higher is betterTest setup not documented as identicalClaude Opus 4.8: 41.9%GPT-6 Luna: 23.3%Vals AIAs of 11/05/2026
LMArena Code Arena WebDevWeb development · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1,556GPT-6 Luna: 1,579LMArenaAs of 10/28/2026
LMArena Text, Style ControlCoding · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1,534GPT-6 Luna: 1,506LMArenaAs of 10/28/2026
LMArena Vision, Style ControlDiagram understanding · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1,319GPT-6 Luna: 1,275LMArenaAs of 10/19/2026
ProgramBenchRaw Pass Rate · higher is betterTest setup not documented as identicalClaude Opus 4.8: 71.9%GPT-6 Luna: 66.2%Vals AIAs of 11/05/2026
Tax Agent BenchCurrent & Temporal Analysis · higher is betterTest setup not documented as identicalClaude Opus 4.8: 46.5%GPT-6 Luna: 16.5%Vals AIAs of 11/05/2026
Terminal-Bench 4.0ML · higher is betterTest setup not documented as identicalClaude Opus 4.8: 27.3%GPT-6 Luna: 9.1%Vals AIAs of 11/05/2026
Terminal-Bench-ScienceLife Sciences · higher is betterTest setup not documented as identicalClaude Opus 4.8: 0.0%GPT-6 Luna: 10.5%Vals AIAs of 11/05/2026
EMBLBO · higher is betterTest setup not documented as identicalClaude Opus 4.8: 54.4%GPT-6 Luna: 59.1%Vals AIAs of 10/20/2026
Finance Agent (v2)Disclosure Analysis · higher is betterTest setup not documented as identicalClaude Opus 4.8: 65.7%GPT-6 Luna: 57.6%Vals AIAs of 10/29/2026
Legal Research BenchBusiness & Commercial · Weighted partial credit (weighted pass) · higher is betterTest setup not documented as identicalClaude Opus 4.8: 86.1%GPT-6 Luna: 79.1%Vals AIAs of 11/05/2026
LMArena Text, Style ControlCreative writing · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1,469GPT-6 Luna: 1,410LMArenaAs of 10/28/2026
LMArena Vision, Style ControlEnglish · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1,280GPT-6 Luna: 1,228LMArenaAs of 10/19/2026
Tax Agent BenchCurrent & Temporal Analysis (weighted pass) · higher is betterTest setup not documented as identicalClaude Opus 4.8: 76.0%GPT-6 Luna: 55.3%Vals AIAs of 11/05/2026
Terminal-Bench 4.0Operations · higher is betterTest setup not documented as identicalClaude Opus 4.8: 11.1%GPT-6 Luna: 3.7%Vals AIAs of 11/05/2026
Terminal-Bench-ScienceMathematical Sciences · higher is betterTest setup not documented as identicalClaude Opus 4.8: 5.9%GPT-6 Luna: 0.0%Vals AIAs of 11/05/2026
EMBM&A · higher is betterTest setup not documented as identicalClaude Opus 4.8: 80.1%GPT-6 Luna: 72.1%Vals AIAs of 10/20/2026
Finance Agent (v2)Earnings Analysis · higher is betterTest setup not documented as identicalClaude Opus 4.8: 72.1%GPT-6 Luna: 74.2%Vals AIAs of 10/29/2026
Legal Research BenchCivil Litigation · All-pass · higher is betterTest setup not documented as identicalClaude Opus 4.8: 51.9%GPT-6 Luna: 25.9%Vals AIAs of 11/05/2026
LMArena Text, Style ControlEnglish · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1,490GPT-6 Luna: 1,449LMArenaAs of 10/28/2026
LMArena Vision, Style ControlHomework · higher is betterTest setup not documented as identicalClaude Opus 4.8: 1,332GPT-6 Luna: 1,281LMArenaAs of 10/19/2026

More comparisons

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  6. 6GPT-6 Astra vs. GPT-6 Luna
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  1. 10Claude Sonnet 5 vs. GPT-6 Luna
  2. 11GPT-6 Luna vs. Gemini 3.5 Flash-Lite
  3. 12Claude Haiku 4.5 vs. GPT-6 Luna
  4. 13Claude Sonnet 4.6 vs. GPT-6 Luna
  5. 14GPT-6 Luna vs. GPT-5.4
  6. 15GPT-6 Luna vs. Gemini 3.1 Pro Preview
  7. 16Claude Opus 5.5 vs. Claude Opus 4.8
  8. 17Claude Sonnet 5.5 vs. GPT-6 Luna
  9. 18GPT-6 Luna vs. DeepSeek V4.1 Flash 1017
  10. 19Claude Opus 4.8 vs. GPT-6.1 Sol
  11. 20GPT-6 Luna vs. GPT-5.6 Sol
  12. 21Claude Opus 4.8 vs. GPT-6 Sol
  13. 22Claude Opus 4.8 vs. GPT-6 Astra
  14. 23GPT-6 Luna vs. Grok 4.7
  15. 24GPT-6 Luna vs. Gemini 3.6 Flash
  16. 25Claude Opus 4.8 vs. Grok 4.7
  17. 26GPT-6 Sol vs. GPT-6 Luna
  18. 27Claude Opus 4.6 vs. GPT-6 Luna
  19. 28Claude Sonnet 4.5 vs. GPT-6 Luna
  20. 29GPT-6 Luna vs. Muse Spark 1.3
  21. 30GPT-6 Luna vs. DeepSeek-V4-Flash
  22. 31Claude Opus 4.8 vs. DeepSeek-V4.1-Flash
  23. 32Claude Opus 5.5 vs. GPT-6 Luna
  24. 33Claude Opus 4.8 vs. GLM-5.3-Flash
  25. 34Claude Haiku 5.5 vs. Claude Opus 4.8
  26. 35GPT-6 Luna vs. Qwen 3.8 27B
  27. 36Claude Opus 4.8 vs. DeepSeek V4.1 Flash 1017
  28. 37GPT-6 Luna vs. Qwen 3.8 Max 0902
  29. 38GPT-6 Luna vs. GLM-5.2
  30. 39Claude Sonnet 5.5 vs. Claude Opus 4.8
  31. 40GPT-6 Luna vs. GPT-5.5
  32. 41GPT-6 Luna vs. Gemini 3.7 Flash
  33. 42Claude Opus 4.8 vs. Qwen 3.8 Max 0902
  34. 43Claude Fable 5.1 vs. GPT-6 Luna
  35. 44GPT-6 Luna vs. GLM-5.3
  36. 45GPT-6 Luna vs. Grok 4.6
  37. 46Claude Opus 4.5 vs. GPT-6 Luna
  38. 47Claude Opus 4.8 vs. Qwen 3.8 27B
  39. 48GPT-6 Luna vs. MiMo-V2.5
  40. 49Claude Opus 4.8 vs. Kimi K3
  41. 50Claude Fable 5 vs. GPT-6 Luna
  42. 51GPT-6 Luna vs. Mistral Large 4
  43. 52GPT-6 Luna vs. Gemini 3.5 Flash
  44. 53GPT-6.1 Terra vs. GPT-6 Luna
  45. 54Claude Opus 4.8 vs. GLM-5.3
  46. 55Claude Fable 5.1 vs. Claude Opus 4.8
  47. 56GPT-6 Luna vs. Mistral Medium 3.5
  48. 57Claude Opus 4.8 vs. Mistral Large 4
  49. 58GPT-6 Luna vs. Grok 4.5
  50. 59Claude Opus 4.7 vs. GPT-6 Luna
  51. 60Claude Opus 4.8 vs. GPT-5.5
  52. 61Claude Opus 4.8 vs. Claude Opus 4.6
  53. 62GPT-6 Luna vs. Gemini 4 Argon
  54. 63Claude Opus 4.8 vs. GPT-6.1 Terra
  55. 64Claude Opus 4.8 vs. Gemini 4 Argon