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AnthropicOpenAILLM matchup

Claude Opus 5.5vs.GPT-5.6 Luna

Which one is better?

Claude Opus 5.5 performs better than GPT-5.6 Luna, but costs 20 times (input) and 16.7 times (output) as much.

Opus 5.5 ahead
IntelligenceOverall index, 100 points = average
126.1

Claude Opus 5.5

Rank 1

93.9

GPT-5.6 Luna

Rank 38

about as fast
SpeedTokens per second
106

Claude Opus 5.5

94

GPT-5.6 Luna

GPT-5.6 Luna cheaper
Price$ per 1M tokens
$8

Claude Opus 5.5

$0.45

GPT-5.6 Luna

Opus 5.5 more popular
Popularity0 to 100
68

Claude Opus 5.5

Rank 8 of 785

45

GPT-5.6 Luna

Rank 176 of 785

Above 272,000 tokens of context, GPT-5.6 Luna costs more: $0.40 input and $1.80 output per 1M tokens.

Choose Claude Opus 5.5 for

KnowledgeMathematicsGeneralCodingProductivityMultimodalHealthLegalReasoningFinanceAgents

Choose GPT-5.6 Luna for

No clear advantage

Where is the difference?

Strengths at a glance

Opus 5.5GPT-5.6 LunaMedian of all ranked models

9511513575CodingOpus 5.5ReasoningOpus 5.5MathematicsOpus 5.5KnowledgeOpus 5.5AgentsOpus 5.5GeneralOpus 5.5MultimodalOpus 5.5FinanceOpus 5.5LegalOpus 5.5HealthOpus 5.5
CodingOpus 5.5 ahead
Opus 5.5129.9Rank 1
GPT-5.6 Luna96.0Rank 41
Median of ranked models84.1

95 % range: Opus 5.5 121.2 to 138.7, GPT-5.6 Luna 86.4 to 105.6.

AreaOpus 5.5GPT-5.6 Luna

The same values and verdicts as the bars below. In the close-up the net starts at 75 points, just below the weaker model's lowest value; the reference group average is 100.

Opus 5.5 is ahead in 10 of 10 areas, GPT-5.6 Luna in none.

Opus 5.5 ahead: 10

Areas in the overall index
KnowledgeOpus 5.5 +47131.4 to 83.9
MathematicsOpus 5.5 +37131.8 to 94.9
GeneralOpus 5.5 +34125.1 to 90.9
CodingOpus 5.5 +34129.9 to 96.0
MultimodalOpus 5.5 +31123.1 to 92.2
ReasoningOpus 5.5 +24122.5 to 98.1
AgentsOpus 5.5 +20117.2 to 97.6
Specialist fields
HealthOpus 5.5 +30122.1 to 92.4
LegalOpus 5.5 +26121.5 to 95.2
FinanceOpus 5.5 +23121.4 to 98.2

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
ProductivityOpus 5.5 +32125.0 to 92.5
Cybersecuritytoo little data120.5 to 98.0
Searchonly Opus 5.5 has a score
Educationonly Opus 5.5 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.

Claude Opus 5.5 vs. GPT-5.6 Luna at the same effort

Both models measured at the same reasoning efforts. This shows whether a lead comes from the model or only from more compute.

maxOpus 5.5 ahead
Opus 5.5 126.1 vs. GPT-5.6 Luna 93.9 · Gap 33.3 · Test series 12
Overall index (max vs. max)Opus 5.5 ahead
Opus 5.5 126.1 vs. GPT-5.6 Luna 93.9

Gap and verdict compare only the Artificial Analysis test series in which both models are measured at that effort. Tied below 3 points, ahead only beyond two standard errors. The single values rest on all test series of each model, so their difference can deviate from the gap.

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 5.5Coding 129.9 to 96.0
Maths and data analysisOpus 5.5Mathematics 131.8 to 94.9, Reasoning 122.5 to 98.1
Facts and researchOpus 5.5Knowledge 131.4 to 83.9, Search without a score for GPT-5.6 Luna
Agents and workflowsOpus 5.5Agents 117.2 to 97.6
Fast chat repliesabout the same106 to 94 tokens per second
Security analysisopenCybersecurity 120.5 to 98.0 (too little data)
Many requests on a small budgetGPT-5.6 Luna$8 to $0.45 per 1M tokens
Finance, legal and medical textsOpus 5.5Finance 121.4 to 98.2, Legal 121.5 to 95.2, Health 122.1 to 92.4
Images, screenshots and PDFsOpus 5.5Multimodal 123.1 to 92.2

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 5.5

Claude Opus 5.5: Pelican on a bicycle
A community classic for free-form SVG drawing.

Oct 1, 2026 · 33 s · $0.07

Test details
Run date
Oct 1, 2026
API provider
openrouter
Requested API model
anthropic/claude-opus-5.5
Reasoning setting
high
Token limit including reasoning
8,192 tokens
Output tokens
3,536 tokens
Cost of the attempt
$0.0708
Response time
33.2 s
API model reported in response
anthropic/claude-opus-5.5
Pinned endpoint
Anthropic | anthropic/claude-opus-5.5-20260921
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-5.6 Luna

GPT-5.6 Luna: Pelican on a bicycle
A community classic for free-form SVG drawing.

Sep 7, 2026 · 50 s · $0.0038

Test details
Run date
Sep 7, 2026
API provider
openrouter
Requested API model
openai/gpt-5.6-luna
Reasoning setting
high
Token limit including reasoning
8,192 tokens
Output tokens
3,164 tokens
Cost of the attempt
$0.0038
Response time
49.9 s
API model reported in response
openai/gpt-5.6-luna
Pinned endpoint
OpenAI | openai/gpt-5.6-luna-20260709
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 5.5

Unavailable in this round

GPT-5.6 Luna

Unavailable in this round

Claude Opus 5.5 and GPT-5.6 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
GPT-6.1 Terramax105.3
GPT-5.6 Lunamax93.9

Popularity compared

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

Claude Opus 5.5 is more popular than GPT-5.6 Luna: 68 to 45 out of 100.

Over time

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

Claude Opus 5.5GPT-5.6 Luna

All data side by side

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

MetricClaude Opus 5.5GPT-5.6 Luna
Intelligence
Overall indexpoints, 100 = reference group average, higher is better126.193.9
RankRank 1 of 92Rank 38 of 92
Price per 1M tokens
Inputwhat you send$4$0.20above 272,000 tokens: $0.40
Outputwhat the model writes$20$1.20above 272,000 tokens: $1.80
Cost per task (own tests)average of 3 original-protocol tasks both models passed (SVG short test not included)$0.11$0.008
Speed
Tokens per second10694
Popularity
Popularitysearch, usage and mentions, 0 to 10068Rank 8 of 78545Rank 176 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 cutoffJune 2026Feb 16, 2026
ReleasedSep 22, 2026Jul 9, 2026
AvailabilityActiveActive
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 GPT-5.6 LunaGPT-6 Luna

Overall index 96.3, rank 35$0.10 input and $0.50 output per 1M tokens

Opus 5.5 vs. GPT-6 Luna
Cheaper than GPT-5.6 LunaDeepSeek V4.1 Flash 1017

Overall index 106.6, rank 17$0.15 input and $0.60 output per 1M tokens

Opus 5.5 vs. DeepSeek V4.1 Flash 1017

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 5.5B: GPT-5.6 Luna

BioMysteryBenchOverall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 79.3%GPT-5.6 Luna: 61.5%Vals AIAs of 11/05/2026
Code MigrationOverall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 66.6%GPT-5.6 Luna: 44.6%Vals AIAs of 10/29/2026
CyberBench v1.1Overall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 55.4%GPT-5.6 Luna: 73.6%Vals AIAs of 11/05/2026
EMBOverall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 75.9%GPT-5.6 Luna: 67.1%Vals AIAs of 10/20/2026
Finance Agent (v2)Overall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 58.6%GPT-5.6 Luna: 55.0%Vals AIAs of 10/29/2026
IOIOverall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 95.1%GPT-5.6 Luna: 61.8%Vals AIAs of 10/29/2026
Legal Research BenchOverall · All-pass · higher is betterTest setup not documented as identicalClaude Opus 5.5: 50.5%GPT-5.6 Luna: 36.5%Vals AIAs of 11/05/2026
LMArena Text, Style ControlOverall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,509GPT-5.6 Luna: 1,453LMArenaAs of 10/28/2026
LMArena Vision, Style ControlOverall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,293GPT-5.6 Luna: 1,257LMArenaAs of 10/19/2026
MedCodeOverall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 49.8%GPT-5.6 Luna: 42.4%Vals AIAs of 10/29/2026
Show 54 more benchmarks
MedScribeOverall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 91.4%GPT-5.6 Luna: 84.4%Vals AIAs of 10/29/2026
MysteryMechanismOverall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 49.6%GPT-5.6 Luna: 14.4%Vals AIAs of 10/29/2026
ProgramBenchOverall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 18.5%GPT-5.6 Luna: 0.0%Vals AIAs of 11/05/2026
ProofBench v1.1Overall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 100%GPT-5.6 Luna: 60%Vals AIAs of 10/29/2026
Public Benefits Bench v1.1Overall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 70.6%GPT-5.6 Luna: 61.2%Vals AIAs of 10/12/2026
SRE BenchOverall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 33.6%GPT-5.6 Luna: 1.5%Vals AIAs of 11/05/2026
Tax Agent BenchOverall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 45.6%GPT-5.6 Luna: 24.8%Vals AIAs of 11/05/2026
Terminal-Bench 4.0Overall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 65.2%GPT-5.6 Luna: 11.6%Vals AIAs of 11/05/2026
Terminal-Bench-ScienceOverall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 47.1%GPT-5.6 Luna: 0.0%Vals AIAs of 11/05/2026
Vals Science IndexOverall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 58.7%GPT-5.6 Luna: 25.3%Vals AIAs of 10/25/2026
Vibe Code Bench 1-100Overall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 30.4%GPT-5.6 Luna: 22.6%Vals AIAs of 10/29/2026
Vibe Code Bench v1.1Overall · higher is betterTest setup not documented as identicalClaude Opus 5.5: 90.3%GPT-5.6 Luna: 77.1%Vals AIAs of 11/05/2026
BioMysteryBenchHard · higher is betterTest setup not documented as identicalClaude Opus 5.5: 47.1%GPT-5.6 Luna: 27.5%Vals AIAs of 11/05/2026
Code MigrationCLI · higher is betterTest setup not documented as identicalClaude Opus 5.5: 65.5%GPT-5.6 Luna: 36.1%Vals AIAs of 10/29/2026
CyberBench v1.1Patch · higher is betterTest setup not documented as identicalClaude Opus 5.5: 85.7%GPT-5.6 Luna: 83.9%Vals AIAs of 11/05/2026
EMBComps · higher is betterTest setup not documented as identicalClaude Opus 5.5: 76.4%GPT-5.6 Luna: 54.6%Vals AIAs of 10/20/2026
Finance Agent (v2)Adjustments · higher is betterTest setup not documented as identicalClaude Opus 5.5: 54.5%GPT-5.6 Luna: 52.0%Vals AIAs of 10/29/2026
IOIIOI 2024 · higher is betterTest setup not documented as identicalClaude Opus 5.5: 100%GPT-5.6 Luna: 85%Vals AIAs of 10/29/2026
Legal Research BenchAdministrative / Regulatory · All-pass · higher is betterTest setup not documented as identicalClaude Opus 5.5: 65.2%GPT-5.6 Luna: 48.5%Vals AIAs of 11/05/2026
LMArena Text, Style ControlBusiness, management and finance · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,495GPT-5.6 Luna: 1,462LMArenaAs of 10/28/2026
LMArena Vision, Style ControlCreative writing with images · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,287GPT-5.6 Luna: 1,257LMArenaAs of 10/19/2026
ProgramBenchAlmost Resolved · higher is betterTest setup not documented as identicalClaude Opus 5.5: 65%GPT-5.6 Luna: 9%Vals AIAs of 11/05/2026
SRE BenchCapability Score · higher is betterTest setup not documented as identicalClaude Opus 5.5: 53.6%GPT-5.6 Luna: 6.4%Vals AIAs of 11/05/2026
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalClaude Opus 5.5: 30%GPT-5.6 Luna: 10%Vals AIAs of 11/05/2026
Terminal-Bench 4.0Hardware · higher is betterTest setup not documented as identicalClaude Opus 5.5: 60%GPT-5.6 Luna: 0%Vals AIAs of 11/05/2026
Terminal-Bench-ScienceEarth Sciences · higher is betterTest setup not documented as identicalClaude Opus 5.5: 37.5%GPT-5.6 Luna: 0.0%Vals AIAs of 11/05/2026
Vals Science IndexBioMysteryBench · higher is betterTest setup not documented as identicalClaude Opus 5.5: 79.3%GPT-5.6 Luna: 61.5%Vals AIAs of 10/25/2026
BioMysteryBenchHuman-solvable · higher is betterTest setup not documented as identicalClaude Opus 5.5: 86.8%GPT-5.6 Luna: 69.4%Vals AIAs of 11/05/2026
Code MigrationCOBOL · higher is betterTest setup not documented as identicalClaude Opus 5.5: 70%GPT-5.6 Luna: 70%Vals AIAs of 10/29/2026
CyberBench v1.1PoC · higher is betterTest setup not documented as identicalClaude Opus 5.5: 25.0%GPT-5.6 Luna: 63.3%Vals AIAs of 11/05/2026
EMBDataroom · higher is betterTest setup not documented as identicalClaude Opus 5.5: 84.9%GPT-5.6 Luna: 83.0%Vals AIAs of 10/20/2026
Finance Agent (v2)All-Pass · higher is betterTest setup not documented as identicalClaude Opus 5.5: 48.1%GPT-5.6 Luna: 43.3%Vals AIAs of 10/29/2026
IOIIOI 2025 · higher is betterTest setup not documented as identicalClaude Opus 5.5: 100.0%GPT-5.6 Luna: 49.8%Vals AIAs of 10/29/2026
Legal Research BenchAdministrative / Regulatory · Weighted partial credit (weighted pass) · higher is betterTest setup not documented as identicalClaude Opus 5.5: 85.4%GPT-5.6 Luna: 87.5%Vals AIAs of 11/05/2026
LMArena Text, Style ControlChinese · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,574GPT-5.6 Luna: 1,478LMArenaAs of 10/28/2026
LMArena Vision, Style ControlDiagram understanding · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,330GPT-5.6 Luna: 1,280LMArenaAs of 10/19/2026
ProgramBenchFully Resolved · higher is betterTest setup not documented as identicalClaude Opus 5.5: 18.5%GPT-5.6 Luna: 0.0%Vals AIAs of 11/05/2026
SRE BenchFully Solved · higher is betterTest setup not documented as identicalClaude Opus 5.5: 33.6%GPT-5.6 Luna: 1.5%Vals AIAs of 11/05/2026
Tax Agent BenchControversy & Precedence Analysis (weighted pass) · higher is betterTest setup not documented as identicalClaude Opus 5.5: 66.9%GPT-5.6 Luna: 61.2%Vals AIAs of 11/05/2026
Terminal-Bench 4.0Media · higher is betterTest setup not documented as identicalClaude Opus 5.5: 75%GPT-5.6 Luna: 0%Vals AIAs of 11/05/2026
Terminal-Bench-ScienceEngineering Sciences · higher is betterTest setup not documented as identicalClaude Opus 5.5: 22.2%GPT-5.6 Luna: 0.0%Vals AIAs of 11/05/2026
Vals Science IndexMysteryMechanism · higher is betterTest setup not documented as identicalClaude Opus 5.5: 49.6%GPT-5.6 Luna: 14.4%Vals AIAs of 10/25/2026
Code MigrationCode Quality · higher is betterTest setup not documented as identicalClaude Opus 5.5: 4.541 / 5GPT-5.6 Luna: 3.195 / 5Vals AIAs of 10/29/2026
EMBDCF · higher is betterTest setup not documented as identicalClaude Opus 5.5: 70.1%GPT-5.6 Luna: 60.5%Vals AIAs of 10/20/2026
Finance Agent (v2)Comparables · higher is betterTest setup not documented as identicalClaude Opus 5.5: 45.8%GPT-5.6 Luna: 48.3%Vals AIAs of 10/29/2026
IOIIOI 2026 · higher is betterTest setup not documented as identicalClaude Opus 5.5: 85.2%GPT-5.6 Luna: 50.5%Vals AIAs of 10/29/2026
Legal Research BenchBusiness & Commercial · All-pass · higher is betterTest setup not documented as identicalClaude Opus 5.5: 48.8%GPT-5.6 Luna: 32.6%Vals AIAs of 11/05/2026
LMArena Text, Style ControlCoding · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,551GPT-5.6 Luna: 1,502LMArenaAs of 10/28/2026
LMArena Vision, Style ControlEnglish · higher is betterTest setup not documented as identicalClaude Opus 5.5: 1,284GPT-5.6 Luna: 1,262LMArenaAs of 10/19/2026
ProgramBenchRaw Pass Rate · higher is betterTest setup not documented as identicalClaude Opus 5.5: 87.0%GPT-5.6 Luna: 68.3%Vals AIAs of 11/05/2026
Tax Agent BenchCurrent & Temporal Analysis · higher is betterTest setup not documented as identicalClaude Opus 5.5: 46.6%GPT-5.6 Luna: 33.0%Vals AIAs of 11/05/2026
Terminal-Bench 4.0ML · higher is betterTest setup not documented as identicalClaude Opus 5.5: 81.8%GPT-5.6 Luna: 18.2%Vals AIAs of 11/05/2026
Terminal-Bench-ScienceLife Sciences · higher is betterTest setup not documented as identicalClaude Opus 5.5: 52.6%GPT-5.6 Luna: 0.0%Vals AIAs of 11/05/2026
Vals Science IndexTerminal-Bench-Science · higher is betterTest setup not documented as identicalClaude Opus 5.5: 47.1%GPT-5.6 Luna: 0.0%Vals AIAs of 10/25/2026

More comparisons

Compare Claude Opus 5.5 and GPT-5.6 Luna with the models people compare them with most often.

Compare another matchup

The most popular comparisons

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  2. 2Claude Opus 5.5 vs. Claude Sonnet 5.5
  3. 3Claude Opus 5.5 vs. DeepSeek-V4-Pro
  4. 4Claude Opus 5.5 vs. Kimi K3.1 Pro
  5. 5Claude Opus 5.5 vs. Gemini 4 Argon
  6. 6Claude Opus 5.5 vs. Gemini 3.8 Flash
  7. 7Claude Opus 5.5 vs. Claude Fable 5.1
  8. 8Claude Opus 5.5 vs. DeepSeek-V4.1-Flash
  9. 9Claude Opus 5.5 vs. Qwen 3.8 Max 0902
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  1. 10Claude Opus 5.5 vs. GLM-5.3-Flash
  2. 11Claude Opus 5.5 vs. GPT-6.1 Sol
  3. 12Claude Opus 5.5 vs. Kimi K3
  4. 13Claude Opus 5.5 vs. Claude Sonnet 5
  5. 14Claude Opus 5.5 vs. Claude Haiku 5.5
  6. 15Claude Opus 5.5 vs. GLM-5.3
  7. 16Claude Opus 5.5 vs. GPT-5.6 Terra
  8. 17Claude Opus 5.5 vs. Gemini 3.1 Pro Preview
  9. 18Claude Opus 5.5 vs. Claude Opus 4.6
  10. 19Claude Opus 5.5 vs. Claude Sonnet 4.6
  11. 20Claude Opus 5.5 vs. Qwen 3.8 27B
  12. 21Claude Opus 5.5 vs. Grok 4.6
  13. 22Claude Opus 5.5 vs. GLM-5.2
  14. 23Claude Opus 5.5 vs. Gemini 4 Carbon
  15. 24Claude Opus 5.5 vs. DeepSeek V4.1 Flash 1017
  16. 25Claude Opus 5.5 vs. Claude Sonnet 4.5
  17. 26Claude Opus 5.5 vs. Muse Spark 1.3
  18. 27Claude Opus 5.5 vs. Claude Opus 4.8
  19. 28GPT-5.6 Luna vs. Gemini 3.8 Flash
  20. 29Claude Opus 5.5 vs. Mistral Large 4
  21. 30Claude Opus 5.5 vs. GPT-5.6 Sol
  22. 31Claude Opus 5.5 vs. GPT-5.5
  23. 32GPT-5.6 Luna vs. GPT-5.4 mini
  24. 33GPT-6.1 Sol vs. GPT-5.6 Luna
  25. 34Claude Opus 5.5 vs. DeepSeek-V4-Flash
  26. 35Claude Sonnet 5.5 vs. GPT-5.6 Luna
  27. 36Claude Opus 5.5 vs. Grok 4.7
  28. 37Claude Haiku 5.5 vs. GPT-5.6 Luna
  29. 38Claude Opus 5.5 vs. Mistral Large 3
  30. 39Claude Opus 5.5 vs. GPT-6 Luna
  31. 40Claude Opus 5.5 vs. Claude Opus 4.5
  32. 41GPT-5.6 Luna vs. DeepSeek V4.1 Flash 1017
  33. 42Claude Opus 5.5 vs. Claude Fable 5
  34. 43Claude Opus 5.5 vs. GPT-6 Sol
  35. 44GPT-5.6 Luna vs. DeepSeek-V4.1-Flash
  36. 45Claude Opus 5.5 vs. Gemini 3.6 Flash
  37. 46Claude Opus 5.5 vs. Mistral Medium 3.5
  38. 47GPT-6 Sol vs. GPT-5.6 Luna
  39. 48Claude Opus 5.5 vs. Muse Wonder Full
  40. 49GPT-5.6 Luna vs. Qwen 3.8 27B
  41. 50GPT-5.6 Luna vs. Grok 4.7
  42. 51Claude Opus 5.5 vs. Claude Haiku 4.5
  43. 52GPT-5.6 Luna vs. DeepSeek-V4-Flash
  44. 53Claude Opus 5 vs. GPT-5.6 Luna
  45. 54Claude Opus 5.5 vs. Gemini 3.5 Flash
  46. 55Claude Opus 5.5 vs. GPT-6.1 Terra
  47. 56Claude Opus 5.5 vs. GPT-5.4
  48. 57Claude Sonnet 4.5 vs. GPT-5.6 Luna
  49. 58Claude Opus 5.5 vs. GLM-5.1
  50. 59GPT-5.6 Luna vs. Gemini 3.7 Flash
  51. 60Claude Sonnet 5 vs. GPT-5.6 Luna
  52. 61GPT-5.6 Sol vs. GPT-5.6 Luna
  53. 62GPT-5.6 Luna vs. Gemini 3.1 Pro Preview
  54. 63GPT-5.6 Luna vs. GLM-5.3-Flash
  55. 64GPT-5.6 Luna vs. Mistral Large 4
  56. 65GPT-5.6 Luna vs. GPT-5.4
  57. 66Claude Haiku 4.5 vs. GPT-5.6 Luna
  58. 67GPT-5.6 Luna vs. GPT-5.5
  59. 68Claude Opus 4.5 vs. GPT-5.6 Luna
  60. 69GPT-6.1 Terra vs. GPT-5.6 Luna
  61. 70GPT-5.6 Luna vs. Gemini 4 Argon