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AnthropicxAILLM matchup

Claude Haiku 5.5vs.Grok 4.6

Which one is better?

Claude Haiku 5.5 and Grok 4.6 perform about equally well, but Grok 4.6 costs 20 times (input) and 12 times (output) as much.

level
IntelligenceOverall index, 100 points = average
103.4

Claude Haiku 5.5

Rank 20

102.4

Grok 4.6

Rank 22

Haiku 5.5 faster
SpeedTokens per second
236

Claude Haiku 5.5

72

Grok 4.6

Haiku 5.5 cheaper
Price$ per 1M tokens
$0.20

Claude Haiku 5.5

$3

Grok 4.6

Haiku 5.5 more popular
Popularity0 to 100
77

Claude Haiku 5.5

Rank 3 of 875

59

Grok 4.6

Rank 42 of 875

Above 100,000 tokens of context, Claude Haiku 5.5 costs more: $0.50 input and $2.50 output per 1M tokens. Above 200,000 tokens of context, Grok 4.6 costs more: $4 input and $12 output per 1M tokens.

Choose Claude Haiku 5.5 for

HealthCybersecurityCodingMathematics (not certain)Reasoning (not certain)Finance (not certain)

Choose Grok 4.6 for

LegalProductivityKnowledge (not certain)

Where is the difference?

Strengths at a glance

Haiku 5.5Grok 4.6

The median of all ranked models is below 100 in every area, so it sits in the centre of the net.

105110100CodingHaiku 5.5Reasoningslightly Haiku 5.5Mathematicsslightly Haiku 5.5Knowledgeslightly Grok 4.6AgentslevelGenerallevelFinanceslightly Haiku 5.5LegalGrok 4.6HealthHaiku 5.5
CodingHaiku 5.5 ahead
Haiku 5.5106.2Rank 18
Grok 4.6100.9Rank 23
Median of ranked models83.7

95 % range: Haiku 5.5 102.5 to 109.9, Grok 4.6 97.5 to 104.2.

AreaHaiku 5.5Grok 4.6

The same values and verdicts as the bars below. In the top field the net starts at 100 points, the reference group average; values below sit as a hollow point in the centre. Not in the net because a model has no own value there or the data are too thin: Multimodal.

Haiku 5.5 is ahead in 2 of 10 areas, Grok 4.6 in 1.

Haiku 5.5 ahead: 2Haiku 5.5 slightly ahead: 3level: 2too little data: 1Grok 4.6 slightly ahead: 1Grok 4.6 ahead: 1

Areas in the overall index
CodingHaiku 5.5 +5106.2 to 100.9
Knowledgeleaning Grok 4.6not certain · 2 and 3 tests
Mathematicsleaning Haiku 5.5not certain · 3 and 4 tests
Reasoningleaning Haiku 5.5not certain · 4 and 5 tests
Agentslevel106.1 to 104.4
Generallevel106.4 to 106.0
Multimodalonly Grok 4.6 has a score
Specialist fields
LegalGrok 4.6 +1094.4 to 104.8
HealthHaiku 5.5 +8108.9 to 100.4
Financeleaning Haiku 5.5not certain · 5 and 6 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 3 more areas that do not count toward the overall index
CybersecurityHaiku 5.5 +5108.6 to 103.2
ProductivityGrok 4.6 +3101.8 to 104.5
Educationonly Haiku 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 Haiku 5.5 vs. Grok 4.6 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.

xhightied
Haiku 5.5 101.3 vs. Grok 4.6 n/a · Gap 1.5 · Test series 10
Overall index (max vs. high)level
Haiku 5.5 103.4 vs. Grok 4.6 102.4

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 codeHaiku 5.5Coding 106.2 to 100.9
Maths and data analysisleaning Haiku 5.5Mathematics 107.1 to 101.5, Reasoning 105.2 to 100.7
Facts and researchleaning Grok 4.6Knowledge 85.5 to 100.6
Agents and workflowslevelAgents 106.1 to 104.4
Fast chat repliesHaiku 5.5236 to 72 tokens per second
Security analysisHaiku 5.5Cybersecurity 108.6 to 103.2
Many requests on a small budgetHaiku 5.5$0.20 to $3 per 1M tokens
Finance, legal and medical textsdepends on the partFinance 104.7 to 100.5, Legal 94.4 to 104.8, Health 108.9 to 100.4
Images, screenshots and PDFsopenMultimodal without a score for Haiku 5.5

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 Haiku 5.5

Not tested yet

Grok 4.6

Grok 4.6: Pelican on a bicycle
A community classic for free-form SVG drawing.

Oct 1, 2026 · 114 s · $0.05

Test details
Run date
Oct 1, 2026
API provider
openrouter
Requested API model
x-ai/grok-4.6
Reasoning setting
high
Token limit including reasoning
8,192 tokens
Output tokens
7,660 tokens
Cost of the attempt
$0.0462
Response time
113.6 s
API model reported in response
x-ai/grok-4.6
Pinned endpoint
xAI | x-ai/grok-4.6-20260810
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.

Earlier attempts (1)

  • Sep 7, 2026API request failedReasoning setting: high
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 Haiku 5.5

Unavailable in this round

Grok 4.6

Unavailable in this round

Claude Haiku 5.5 and Grok 4.6 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 91 models

5 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 Carbonhigh125.7
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 Solmax110.6
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 Haiku 5.5max103.4
Grok 4.6high102.4

Popularity compared

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

Claude Haiku 5.5 is more popular than Grok 4.6: 77 to 59 out of 100.

Over time

Weekly values from October 18, 2026 to November 5, 2026

Claude Haiku 5.5Grok 4.6

All data side by side

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

MetricClaude Haiku 5.5Grok 4.6
Intelligence
Overall indexpoints, 100 = reference group average, higher is better103.4102.4
RankRank 20 of 91Rank 22 of 91
Price per 1M tokens
Inputwhat you send$0.10above 100,000 tokens: $0.50$2above 200,000 tokens: $4
Outputwhat the model writes$0.50above 100,000 tokens: $2.50$6above 200,000 tokens: $12
Speed
Tokens per second23672
Popularity
Popularitysearch, usage and mentions, 0 to 10077Rank 3 of 87559Rank 42 of 875
Technical
Context windowhow much text the model reads at once1 M tokens≈ 1,500 A4 pages500,000 tokens≈ 750 A4 pages
Knowledge cutoffJune 2026Feb 1, 2026
ReleasedOct 7, 2026Aug 12, 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 Grok 4.6Grok 4.7

Overall index 103.3, rank 21. $2 input and $6 output per 1M tokens.

Haiku 5.5 vs. Grok 4.7
Best model in the overall indexClaude Opus 5.5

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

Haiku 5.5 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 Haiku 5.5B: Grok 4.6

AA-BriefcaseOverall · higher is betterClaude Haiku 5.5: 1,523.33 eloGrok 4.6: 1,540.85 eloArtificial AnalysisAs of 11/06/2026
AA-OmniscienceOverall · higher is betterClaude Haiku 5.5: 7.833 pointsGrok 4.6: 24.867 pointsArtificial AnalysisAs of 11/06/2026
AA-Omniscience AccuracyOverall · higher is betterClaude Haiku 5.5: 33.8%Grok 4.6: 46.2%Artificial AnalysisAs of 11/06/2026
AA-Omniscience Hallucination RateOverall · lower is betterClaude Haiku 5.5: 39.2%Grok 4.6: 39.7%Artificial AnalysisAs of 11/06/2026
AutomationBench-AAOverall · higher is betterClaude Haiku 5.5: 36.0%Grok 4.6: 67.0%Artificial AnalysisAs of 11/06/2026
BioMysteryBenchOverall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 70.4%Grok 4.6: 72.2%Vals AIAs of 11/05/2026
Code MigrationOverall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 44.6%Grok 4.6: 44.6%Vals AIAs of 10/29/2026
CritPt v2 (Hard Subset)Overall · higher is betterClaude Haiku 5.5: 47.5%Grok 4.6: 40.0%Artificial AnalysisAs of 11/06/2026
CyberBench v1.1Overall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 75.5%Grok 4.6: 67.7%Vals AIAs of 11/05/2026
EMBOverall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 59%Grok 4.6: 62.7%Vals AIAs of 10/20/2026
Show 54 more benchmarks
Finance Agent (v2)Overall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 54.1%Grok 4.6: 53.7%Vals AIAs of 10/29/2026
FrontierCodeOverall · higher is betterClaude Haiku 5.5: 29.9%Grok 4.6: 19.8%Artificial AnalysisAs of 11/06/2026
GDP.pdfOverall · higher is betterClaude Haiku 5.5: 18.2%Grok 4.6: 17.2%Artificial AnalysisAs of 11/06/2026
GDPval-AAOverall · higher is betterClaude Haiku 5.5: 1,424.29 eloGrok 4.6: 1,626 eloArtificial AnalysisAs of 11/06/2026
HLE-DiamondOverall · higher is betterClaude Haiku 5.5: 28.8%Grok 4.6: 21.5%Artificial AnalysisAs of 11/06/2026
ImmigrationOverall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 61.8%Grok 4.6: 66%Vals AIAs of 10/28/2026
IOIOverall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 47.3%Grok 4.6: 47.6%Vals AIAs of 10/29/2026
Legal Research BenchOverall · All-pass · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 43.8%Grok 4.6: 48.1%Vals AIAs of 11/05/2026
LMArena Code Arena WebDevOverall · higher is betterClaude Haiku 5.5: 1,589Grok 4.6: 1,616LMArenaAs of 10/28/2026
LMArena Text, Style ControlOverall · higher is betterClaude Haiku 5.5: 1,425Grok 4.6: 1,455LMArenaAs of 10/28/2026
MedCodeOverall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 51.5%Grok 4.6: 44.7%Vals AIAs of 10/29/2026
MedScribeOverall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 89.5%Grok 4.6: 86.5%Vals AIAs of 10/29/2026
MysteryMechanismOverall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 35.1%Grok 4.6: 30.6%Vals AIAs of 10/29/2026
ProgramBenchOverall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 2.5%Grok 4.6: 1%Vals AIAs of 11/05/2026
ProofBench v1.1Overall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 89%Grok 4.6: 51%Vals AIAs of 10/29/2026
Public Benefits Bench v1.1Overall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 63.2%Grok 4.6: 66.8%Vals AIAs of 10/12/2026
Tax Agent BenchOverall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 31.9%Grok 4.6: 33.1%Vals AIAs of 11/05/2026
Terminal-BenchOverall · higher is betterClaude Haiku 5.5: 29.3%Grok 4.6: 17.2%Artificial AnalysisAs of 11/06/2026
Terminal-Bench 4.0Overall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 36.4%Grok 4.6: 17.2%Vals AIAs of 11/05/2026
Terminal-Bench-ScienceOverall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 10%Grok 4.6: 11.4%Vals AIAs of 11/05/2026
Terminal-Bench-ScienceOverall · higher is betterClaude Haiku 5.5: 18.1%Grok 4.6: 2.9%Artificial AnalysisAs of 11/06/2026
Vals Science IndexOverall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 38.5%Grok 4.6: 38.1%Vals AIAs of 10/25/2026
Vibe Code Bench 1-100Overall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 20.4%Grok 4.6: 14.8%Vals AIAs of 10/29/2026
Vibe Code Bench v1.1Overall · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 90.4%Grok 4.6: 76.2%Vals AIAs of 11/05/2026
BioMysteryBenchHard · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 29.4%Grok 4.6: 29.4%Vals AIAs of 11/05/2026
Code MigrationCLI · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 36.1%Grok 4.6: 39.4%Vals AIAs of 10/29/2026
CyberBench v1.1Patch · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 89.3%Grok 4.6: 80.4%Vals AIAs of 11/05/2026
EMBComps · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 77.9%Grok 4.6: 59.9%Vals AIAs of 10/20/2026
Finance Agent (v2)Adjustments · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 49.6%Grok 4.6: 49.6%Vals AIAs of 10/29/2026
GDPval-AAOverall · higher is betterClaude Haiku 5.5: 1,521.54 eloGrok 4.6: 1,654.15 eloArtificial AnalysisAs of 11/06/2026
ImmigrationAll-Pass · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 16%Grok 4.6: 17.6%Vals AIAs of 10/28/2026
IOIIOI 2024 · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 67.7%Grok 4.6: 50.3%Vals AIAs of 10/29/2026
Legal Research BenchAdministrative / Regulatory · All-pass · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 50%Grok 4.6: 62.1%Vals AIAs of 11/05/2026
LMArena Code Arena WebDevHTML development · higher is betterClaude Haiku 5.5: 1,568Grok 4.6: 1,597LMArenaAs of 10/28/2026
LMArena Text, Style ControlBusiness, management and finance · higher is betterClaude Haiku 5.5: 1,435Grok 4.6: 1,448LMArenaAs of 10/28/2026
ProgramBenchAlmost Resolved · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 29.5%Grok 4.6: 19%Vals AIAs of 11/05/2026
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 6.7%Grok 4.6: 16.7%Vals AIAs of 11/05/2026
Terminal-Bench 4.0Hardware · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 20%Grok 4.6: 6.7%Vals AIAs of 11/05/2026
Terminal-Bench-ScienceEarth Sciences · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 0%Grok 4.6: 12.5%Vals AIAs of 11/05/2026
Vals Science IndexBioMysteryBench · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 70.4%Grok 4.6: 72.2%Vals AIAs of 10/25/2026
BioMysteryBenchHuman-solvable · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 79.9%Grok 4.6: 82.2%Vals AIAs of 11/05/2026
Code MigrationCOBOL · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 70%Grok 4.6: 60%Vals AIAs of 10/29/2026
CyberBench v1.1PoC · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 61.7%Grok 4.6: 55%Vals AIAs of 11/05/2026
EMBDataroom · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 85.5%Grok 4.6: 78.2%Vals AIAs of 10/20/2026
Finance Agent (v2)All-Pass · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 42.9%Grok 4.6: 42.9%Vals AIAs of 10/29/2026
GDPval-AAOverall · higher is betterClaude Haiku 5.5: 1,130.36 eloGrok 4.6: 1,417.91 eloArtificial AnalysisAs of 11/06/2026
ImmigrationContent Checks · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 57.6%Grok 4.6: 63.3%Vals AIAs of 10/28/2026
IOIIOI 2025 · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 31.3%Grok 4.6: 49%Vals AIAs of 10/29/2026
Legal Research BenchAdministrative / Regulatory · Weighted partial credit · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 88.7%Grok 4.6: 91.4%Vals AIAs of 11/05/2026
LMArena Code Arena WebDevReact development · higher is betterClaude Haiku 5.5: 1,608Grok 4.6: 1,630LMArenaAs of 10/28/2026
LMArena Text, Style ControlChinese · higher is betterClaude Haiku 5.5: 1,468Grok 4.6: 1,497LMArenaAs of 10/28/2026
ProgramBenchFully Resolved · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 2.5%Grok 4.6: 1%Vals AIAs of 11/05/2026
Tax Agent BenchControversy & Precedence Analysis · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 54.1%Grok 4.6: 68.1%Vals AIAs of 11/05/2026
Terminal-Bench 4.0Media · higher is betterTest setup not documented as identicalClaude Haiku 5.5: 25%Grok 4.6: 0%Vals AIAs of 11/05/2026

More comparisons

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The most popular comparisons

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  4. 4Claude Haiku 5.5 vs. DeepSeek-V4-Flash
  5. 5Claude Haiku 5.5 vs. DeepSeek-V4.1-Flash
  6. 6Claude Opus 5.5 vs. Claude Haiku 5.5
  7. 7Claude Haiku 5.5 vs. GLM-5.3
  8. 8Claude Haiku 5.5 vs. Gemini 3.5 Flash-Lite
  9. 9Claude Haiku 5.5 vs. Gemini 3.8 Flash
Show all 41 comparisons
  1. 10Claude Opus 5.5 vs. Grok 4.6
  2. 11Claude Haiku 5.5 vs. Claude Sonnet 4.5
  3. 12Claude Haiku 5.5 vs. Claude Sonnet 5
  4. 13Claude Haiku 5.5 vs. Claude Opus 5
  5. 14Claude Haiku 5.5 vs. GPT-6 Astra
  6. 15Claude Haiku 5.5 vs. Gemini 3.5 Flash
  7. 16Claude Haiku 5.5 vs. Claude Opus 4.8
  8. 17Claude Haiku 5.5 vs. Gemini 4 Argon
  9. 18Claude Haiku 5.5 vs. Grok 4.7
  10. 19Claude Haiku 5.5 vs. GPT-5.6 Luna
  11. 20Claude Haiku 5.5 vs. Qwen 3.8 Max 0902
  12. 21Claude Opus 5 vs. Grok 4.6
  13. 22Claude Haiku 5.5 vs. Muse Spark 1.3
  14. 23Claude Haiku 5.5 vs. Claude Sonnet 4.6
  15. 24Claude Haiku 5.5 vs. Gemini 3.7 Flash
  16. 25Gemini 3.8 Flash vs. Grok 4.6
  17. 26Claude Haiku 5.5 vs. Mistral Large 4
  18. 27Claude Haiku 5.5 vs. GPT-6.1 Sol
  19. 28Claude Haiku 5.5 vs. Gemini 3.1 Pro Preview
  20. 29Claude Haiku 5.5 vs. GLM-5.3-Flash
  21. 30Claude Haiku 5.5 vs. DeepSeek-V4-Pro
  22. 31Claude Haiku 5.5 vs. GPT-5.6 Sol
  23. 32Claude Haiku 5.5 vs. Gemini 3.6 Flash
  24. 33Claude Haiku 5.5 vs. Claude Opus 4.6
  25. 34Claude Haiku 5.5 vs. Kimi K2.6
  26. 35GPT-6 Luna vs. Grok 4.6
  27. 36Grok 4.6 vs. GLM-5.3
  28. 37Grok 4.6 vs. DeepSeek-V4.1-Flash
  29. 38Claude Haiku 5.5 vs. Claude Opus 4.7
  30. 39Claude Haiku 5.5 vs. Mistral Large 3
  31. 40Claude Haiku 5.5 vs. GPT-5.5
  32. 41Claude Haiku 5.5 vs. GPT-6.1 Terra