LLMBenchmark.ai

Enter opens the highlighted result. Esc closes.

Claude Haiku 5.5 vs Inkling

Updated October 21, 2026. 53 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace Claude Haiku 5.5 Replace Inkling
Claude Haiku 5.5Anthropic
Coding
75.9
Overall
43.4
Output $/M
$0.50
51
T InklingThinking Machines
Coding
49.7
Overall
25.0
Output $/M
$4.05
2
vs boards won of 53 shared

Decision reading

Pick Claude Haiku 5.5 for coding: it scores 75.9 on the Vibe Coding Index against 49.7 for Inkling.

Pick Inkling when what matters is SimpleQA Verified or LiveBench data analysis, where it leads.

Model AClaude Haiku 5.5Anthropic75.9/1002 independent benchmarksNo cost per solved taskModel BInklingThinking Machines49.7/1002 independent benchmarks$0.76 per solved task
Shared results
53
Claude Haiku 5.5 only
9
Inkling only
49
Like-for-like categories
8 of 9

Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.

Which one for your work

Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.

At a glance

Coding index
Claude Haiku 5.5 75.9 from 2 benchmarks, Inkling 49.7 from 2 benchmarks.
Widest category
Math, 45.6 points apart on average over 4 shared benchmarks.
Widest single gap
ProofBench: Claude Haiku 5.5 89.0% against Inkling 0.0%, 89.0 points apart on a 0 to 100 scale.
Output price
Claude Haiku 5.5 $0.50 against Inkling $4.05 per million output tokens, 8.1x apart.
Context window
Claude Haiku 5.5 takes 1M tokens, Inkling 524K.

Benchmark by benchmark

First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.

Boards won, where both have a result
CategoryClaude Haiku 5.5BarsInklingTies
Coding140
Intelligence20
Agentic work100
Reasoning60
Math40
Knowledge11
Web design70
General71
All shared boards512
CodingLike-for-likeFour of these boards feed the Vibe Coding Index140
Coding benchmarks for Claude Haiku 5.5 and Inkling
BenchmarkClaude Haiku 5.5InklingLeader
LiveBench coding91.4%64.0%Claude Haiku 5.5
LMArena WebDev15861414Claude Haiku 5.5
AA Coding IndexNot measured52.1Only Inkling measured
LiveCodeBench (Vals AI)Not measured85.5%Only Inkling measured
SWE-bench Verified (Vals AI)Not measured77.6%Only Inkling measured
Terminal-Bench 4 (Vals AI)36.4%0.5%Claude Haiku 5.5
Vibe Code Bench (Vals AI)90.4%19.2%Claude Haiku 5.5
Code migration (Vals AI)44.6%11.8%Claude Haiku 5.5
ProgramBench (Vals AI)2.5%0.0%Claude Haiku 5.5
IOI (Vals AI)47.3%14.9%Claude Haiku 5.5
Terminal-Bench 2.1 (Vals AI)Not measured47.6%Only Inkling measured
SWE-bench Multimodal (Vals AI)44.0%Not measuredOnly Claude Haiku 5.5 measured
Vibe Code Bench 1-100 (Vals AI)20.4%7.3%Claude Haiku 5.5
SkillsBench (Vals AI)Not measured26.1%Only Inkling measured
CyberBench (Vals AI)75.5%66.8%Claude Haiku 5.5
SciCode55.0%47.0%Claude Haiku 5.5
FrontierCode46.4%14.0%Claude Haiku 5.5
FrontierSWE43.8%4.1%Claude Haiku 5.5
WeirdMLNot measured32.3%Only Inkling measured
ALE-BenchNot measured946.0Only Inkling measured
LMArena Text: codingNot measured1466Only Inkling measured
LMArena Text: software and ITNot measured1465Only Inkling measured
LMArena WebDev: React16051404Claude Haiku 5.5
LMArena WebDev: HTML15691399Claude Haiku 5.5
Neither model has a result on the other 14 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for Claude Haiku 5.5 and Inkling
BenchmarkClaude Haiku 5.5InklingLeader
AA Intelligence Index43.425.0Claude Haiku 5.5
Epoch Capabilities Index159.3148.4Claude Haiku 5.5
Agentic workLike-for-likePublic boards, shown as published, kept out of the index100
Agentic work benchmarks for Claude Haiku 5.5 and Inkling
BenchmarkClaude Haiku 5.5InklingLeader
AA Agentic IndexNot measured22.5Only Inkling measured
Design Arena: agents building web appsNot measured1196Only Inkling measured
LiveBench research81.9%59.9%Claude Haiku 5.5
LiveBench browser80.0%16.0%Claude Haiku 5.5
LiveBench long agentic57.6%14.1%Claude Haiku 5.5
SREBench (Vals AI)5.7%0.0%Claude Haiku 5.5
Finance Agent (Vals AI)54.1%46.6%Claude Haiku 5.5
Tax Agent Bench (Vals AI)31.9%15.3%Claude Haiku 5.5
Legal Research Bench (Vals AI)43.3%28.4%Claude Haiku 5.5
Harvey's Legal Agent Benchmark (Vals AI)4.2%3.8%Claude Haiku 5.5
Excel Modeling Benchmark (Vals AI)59.0%38.4%Claude Haiku 5.5
BioMysteryBench (Vals AI)70.4%Not measuredOnly Claude Haiku 5.5 measured
Terminal-Bench-Science (Vals AI)10.0%Not measuredOnly Claude Haiku 5.5 measured
Vals Science Index38.5%Not measuredOnly Claude Haiku 5.5 measured
APEX-Agents56.1%33.8%Claude Haiku 5.5
Vending-Bench 2$3,602Not measuredOnly Claude Haiku 5.5 measured
Neither model has a result on the other 23 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index60
Reasoning benchmarks for Claude Haiku 5.5 and Inkling
BenchmarkClaude Haiku 5.5InklingLeader
GPQA DiamondNot measured87.1%Only Inkling measured
LiveBench reasoning82.4%78.3%Claude Haiku 5.5
MysteryMechanism (Vals AI)35.1%Not measuredOnly Claude Haiku 5.5 measured
MMMU Pro (Vals AI)Not measured78.5%Only Inkling measured
GPQA Diamond (Artificial Analysis run)Not measured87.2%Only Inkling measured
Humanity's Last Exam (Artificial Analysis run)44.4%31.9%Claude Haiku 5.5
GPQA Diamond (Epoch AI run)89.6%88.3%Claude Haiku 5.5
ARC-AGI89.0%79.5%Claude Haiku 5.5
ARC-AGI-261.3%36.5%Claude Haiku 5.5
SimpleBenchNot measured50.0%Only Inkling measured
Chess puzzles55.0%21.0%Claude Haiku 5.5
Mystery game puzzles30.0%Not measuredOnly Claude Haiku 5.5 measured
EBR-bench43.8%Not measuredOnly Claude Haiku 5.5 measured
LMArena Text: hard promptsNot measured1451Only Inkling measured
LMArena Text: expertNot measured1466Only Inkling measured
LMArena Text: hard prompts in EnglishNot measured1448Only Inkling measured
Neither model has a result on the other 5 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index40
Math benchmarks for Claude Haiku 5.5 and Inkling
BenchmarkClaude Haiku 5.5InklingLeader
OTIS Mock AIME98.9%88.9%Claude Haiku 5.5
FrontierMath, tiers 1 to 375.1%33.3%Claude Haiku 5.5
FrontierMath, tier 446.3%4.9%Claude Haiku 5.5
ProofBench89.0%0.0%Claude Haiku 5.5
LMArena Text: mathNot measured1479Only Inkling measured
LMArena Text: mathematical workNot measured1460Only Inkling measured
Neither model has a result on the other 7 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index11
Knowledge benchmarks for Claude Haiku 5.5 and Inkling
BenchmarkClaude Haiku 5.5InklingLeader
MMLU ProNot measured86.3%Only Inkling measured
LegalBench (Vals AI)Not measured83.0%Only Inkling measured
CorpFin (Vals AI)Not measured68.6%Only Inkling measured
TaxEval (Vals AI)Not measured75.3%Only Inkling measured
MortgageTax (Vals AI)Not measured64.0%Only Inkling measured
MedCode (Vals AI)51.5%41.2%Claude Haiku 5.5
SimpleQA Verified23.8%40.3%Inkling
LMArena Text: scienceNot measured1455Only Inkling measured
LMArena Text: medicine and healthcareNot measured1447Only Inkling measured
LMArena Text: legal and governmentNot measured1448Only Inkling measured
LMArena Text: business and financeNot measured1438Only Inkling measured
Neither model has a result on the other 6 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index70
Web design benchmarks for Claude Haiku 5.5 and Inkling
BenchmarkClaude Haiku 5.5InklingLeader
Design Arena: websites12631224Claude Haiku 5.5
Design Arena: UI components12951200Claude Haiku 5.5
Design Arena: game dev13151166Claude Haiku 5.5
Design Arena: data viz12921160Claude Haiku 5.5
Design Arena: 3D13431161Claude Haiku 5.5
Design Arena: all code categories12791206Claude Haiku 5.5
Design Arena: SVGNot measured1109Only Inkling measured
Design Arena: ASCII artNot measured1089Only Inkling measured
LiveBench design83.1%58.3%Claude Haiku 5.5
GeneralLike-for-likePublic boards, shown as published, kept out of the index71
General benchmarks for Claude Haiku 5.5 and Inkling
BenchmarkClaude Haiku 5.5InklingLeader
Vals Index58.7%29.0%Claude Haiku 5.5
LiveBench data analysis53.1%72.8%Inkling
Public Benefits Bench (Vals AI)63.2%58.5%Claude Haiku 5.5
SAGE (Vals AI)45.8%36.5%Claude Haiku 5.5
MedScribe (Vals AI)89.5%85.4%Claude Haiku 5.5
Vals Multimodal IndexNot measured49.4%Only Inkling measured
Long context reasoning (AA-LCR)82.7%77.3%Claude Haiku 5.5
DTBench95.0%87.5%Claude Haiku 5.5
LMCA51.1%37.6%Claude Haiku 5.5
Furniture assembly47.5%Not measuredOnly Claude Haiku 5.5 measured
LMArena TextNot measured1442Only Inkling measured
LMArena Text: instruction followingNot measured1425Only Inkling measured
LMArena Text: creative writingNot measured1390Only Inkling measured
LMArena Text: EnglishNot measured1442Only Inkling measured
LMArena Text: non-EnglishNot measured1434Only Inkling measured
LMArena Text: ChineseNot measured1493Only Inkling measured
LMArena Text: GermanNot measured1445Only Inkling measured
LMArena Text: JapaneseNot measured1429Only Inkling measured
LMArena Text: KoreanNot measured1403Only Inkling measured
LMArena Text: FrenchNot measured1455Only Inkling measured
LMArena Text: SpanishNot measured1449Only Inkling measured
LMArena Text: RussianNot measured1430Only Inkling measured
LMArena Text: PolishNot measured1450Only Inkling measured
LMArena Text: multi-turnNot measured1437Only Inkling measured
LMArena Text: longer queriesNot measured1435Only Inkling measured
LMArena Text: writing and languageNot measured1404Only Inkling measured
LMArena Text: entertainment and mediaNot measured1394Only Inkling measured
Neither model has a result on the other 19 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Claude Haiku 5.5 and Inkling
BenchmarkClaude Haiku 5.5InklingLeader
Neither model has a result on 5 boards here

What each workload costs

Three fixed token mixes at each model's listed price, so per-token rates become a bill.

Chat turn

1K input + 500 output tokens

Claude Haiku 5.5$0.0003Fits in one request
Inkling$0.0030Fits in one request

Claude Haiku 5.5 costs less

Repository review

50K input + 3K output tokens

Claude Haiku 5.5$0.0065Fits in one request
Inkling$0.062Fits in one request

Claude Haiku 5.5 costs less

Agent loop

200K input + 10K output tokens

Claude Haiku 5.5$0.025Fits in one request
Inkling$0.240Fits in one request

Claude Haiku 5.5 costs less

Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.

Specification differences

The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.

Specifications of Claude Haiku 5.5 and Inkling
SpecificationAnthropic Claude Haiku 5.5Thinking Machines Inkling
MakerAnthropicThinking Machines
WeightsNo public weights listedOpen weights
ReleasedOctober 7, 2026July 17, 2026
Context window1M524K
Input $/Mtok$0.10$1.00
Output $/Mtok$0.50$4.05
Coding index75.949.7
Independent measurements behind it22
Cost per solved taskNot computable$0.76
SourceOpenRouter listingOpenRouter listing

Questions

Is Claude Haiku 5.5 better than Inkling for coding?

Pick Claude Haiku 5.5 for coding: it scores 75.9 on the Vibe Coding Index against 49.7 for Inkling. Pick Inkling when what matters is SimpleQA Verified or LiveBench data analysis, where it leads.

Which is cheaper, Claude Haiku 5.5 or Inkling?

Claude Haiku 5.5 costs $0.10 per million input tokens and $0.50 per million output tokens; Inkling costs $1.00 and $4.05. Cost per solved task is known for Inkling only.

Which has the bigger context window, Claude Haiku 5.5 or Inkling?

Claude Haiku 5.5, with 1M tokens against 524K.

How many benchmarks is the Claude Haiku 5.5 vs Inkling comparison based on?

53 benchmarks have a result for both models as of October 21, 2026. Claude Haiku 5.5's coding index rests on 2 independent benchmarks and Inkling's on 2. Where only one model has a result, the page says so instead of naming a winner.

Compare next

Embed this comparison on your site

Free under CC BY 4.0, while the source link stays visible. Preview the frame · Terms and other embeds

<iframe src="https://llmbenchmark.ai/embed/compare/claude-haiku-5-5-vs-thinkingmachines-inkling" title="Claude Haiku 5.5 vs Inkling, LLMBenchmark.ai" width="100%" height="360" style="border:0;max-width:100%" loading="lazy"></iframe>
<p style="font:13px/1.4 sans-serif;margin:6px 0 0">Source: <a href="https://llmbenchmark.ai/compare/claude-haiku-5-5-vs-thinkingmachines-inkling">LLMBenchmark.ai, Claude Haiku 5.5 vs Inkling</a></p>