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Claude Opus 4.6 vs Inkling

Claude Opus 4.6 leads Inkling on coding, 57.2 to 31.5 on the Vibe Coding Index, and Inkling costs 6.2x less per output token ($4.05 vs $25.00 per million). Updated October 22, 2026; 73 benchmarks have a result for both.

Replace Claude Opus 4.6 Replace Inkling
Claude Opus 4.6Anthropic
Coding
57.2
Overall
66.0
Output $/M
$25.00
70
T InklingThinking Machines
Coding
31.5
Overall
46.5
Output $/M
$4.05
2
vs boards won of 73 shared, 1 tied

Claude Opus 4.6 or Inkling: which to pick

Pick Claude Opus 4.6 for coding: it scores 57.2 on the Vibe Coding Index against 31.5 for Inkling, though on 4 benchmarks against 6.

Pick Inkling for output tokens 6.2x cheaper ($4.05 vs $25.00 per million) and a lower cost per solved task ($0.76 against $1.56).

Model AClaude Opus 4.6Anthropic57.2/1004 independent benchmarks$1.56 per solved taskModel BInklingThinking Machines31.5/1006 independent benchmarks$0.76 per solved task
Shared results
73
Claude Opus 4.6 only
37
Inkling only
29
Like-for-like categories
8 of 9

Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.

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 Opus 4.6 57.2 from 4 benchmarks, Inkling 31.5 from 6 benchmarks.
Widest category
Math, 21.2 points apart on average over 6 shared benchmarks.
Widest single gap
ProofBench: Claude Opus 4.6 50.0% against Inkling 0.0%, 50.0 points apart on a 0 to 100 scale.
Output price
Claude Opus 4.6 $25.00 against Inkling $4.05 per million output tokens, 6.2x apart.
Context window
Claude Opus 4.6 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 Opus 4.6BarsInklingTies
Coding91
Intelligence20
Agentic work20
Reasoning1101 tie
Math60
Knowledge101
Web design80
General220
All shared boards7021 tie
CodingLike-for-likeSix of these boards feed the Vibe Coding Index91
Coding benchmarks for Claude Opus 4.6 and Inkling
BenchmarkClaude Opus 4.6InklingLeader
SWE-bench Verified75.6%Not measuredOnly Claude Opus 4.6 measured
SWE-bench Multilingual72.0%Not measuredOnly Claude Opus 4.6 measured
LiveBench codingNot measured64.0%Only Inkling measured
LMArena WebDev15471414Claude Opus 4.6
AA Coding IndexNot measured52.1Only Inkling measured
LiveCodeBench (Vals AI)84.7%85.5%Inkling
SWE-bench Verified (Vals AI)78.2%77.6%Claude Opus 4.6
Terminal-Bench 4 (Vals AI)Not measured0.5%Only Inkling measured
Vibe Code Bench (Vals AI)57.6%19.2%Claude Opus 4.6
Code migration (Vals AI)Not measured11.8%Only Inkling measured
ProgramBench (Vals AI)Not measured0.0%Only Inkling measured
IOI (Vals AI)Not measured14.9%Only Inkling measured
Terminal-Bench 2.1 (Vals AI)Not measured47.6%Only Inkling measured
Vibe Code Bench 1-100 (Vals AI)Not measured7.3%Only Inkling measured
SkillsBench (Vals AI)Not measured26.1%Only Inkling measured
CyberBench (Vals AI)Not measured66.8%Only Inkling measured
SciCodeNot measured47.0%Only Inkling measured
Terminal-Bench Hard (Artificial Analysis run)48.5%Not measuredOnly Claude Opus 4.6 measured
Terminal-Bench79.8%Not measuredOnly Claude Opus 4.6 measured
FrontierCode26.6%14.0%Claude Opus 4.6
FrontierSWENot measured4.1%Only Inkling measured
GSO-Bench41.2%Not measuredOnly Claude Opus 4.6 measured
WeirdML78.0%32.3%Claude Opus 4.6
Cybench93.0%Not measuredOnly Claude Opus 4.6 measured
ALE-BenchNot measured946.0Only Inkling measured
LMArena Text: coding15341466Claude Opus 4.6
LMArena Text: software and IT15271465Claude Opus 4.6
LMArena WebDev: React15391404Claude Opus 4.6
LMArena WebDev: HTML15591399Claude Opus 4.6
LMArena WebDev: from an image1543Not measuredOnly Claude Opus 4.6 measured
Neither model has a result on the other 9 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for Claude Opus 4.6 and Inkling
BenchmarkClaude Opus 4.6InklingLeader
AA Intelligence Index31.925.0Claude Opus 4.6
Epoch Capabilities Index155.7148.4Claude Opus 4.6
Agentic workLike-for-likePublic boards, shown as published, kept out of the index20
Agentic work benchmarks for Claude Opus 4.6 and Inkling
BenchmarkClaude Opus 4.6InklingLeader
AA Agentic IndexNot measured22.5Only Inkling measured
Design Arena: agents building web apps12061196Claude Opus 4.6
Design Arena: agents building full-stack apps1220Not measuredOnly Claude Opus 4.6 measured
Design Arena: agents building mobile apps1207Not measuredOnly Claude Opus 4.6 measured
Design Arena: agents building Android apps1197Not measuredOnly Claude Opus 4.6 measured
Design Arena: agents building games1212Not measuredOnly Claude Opus 4.6 measured
LiveBench researchNot measured59.9%Only Inkling measured
LiveBench browserNot measured16.0%Only Inkling measured
LiveBench long agenticNot measured14.1%Only Inkling measured
SREBench (Vals AI)Not measured0.0%Only Inkling measured
Finance Agent (Vals AI)Not measured46.6%Only Inkling measured
Tax Agent Bench (Vals AI)Not measured15.3%Only Inkling measured
Legal Research Bench (Vals AI)Not measured28.4%Only Inkling measured
Harvey's Legal Agent Benchmark (Vals AI)Not measured3.8%Only Inkling measured
Excel Modeling Benchmark (Vals AI)Not measured38.4%Only Inkling measured
τ²-Bench Telecom92.1%Not measuredOnly Claude Opus 4.6 measured
APEX-Agents46.3%33.8%Claude Opus 4.6
METR time horizons78.9%Not measuredOnly Claude Opus 4.6 measured
Remote Labor Index4.2%Not measuredOnly Claude Opus 4.6 measured
DeepResearch Bench55.3%Not measuredOnly Claude Opus 4.6 measured
Vending-Bench 2$8,018Not measuredOnly Claude Opus 4.6 measured
Neither model has a result on the other 20 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index110
Reasoning benchmarks for Claude Opus 4.6 and Inkling
BenchmarkClaude Opus 4.6InklingLeader
GPQA Diamond89.7%87.1%Claude Opus 4.6
LiveBench reasoningNot measured78.3%Only Inkling measured
MMMU Pro (Vals AI)83.9%78.5%Claude Opus 4.6
GPQA Diamond (Artificial Analysis run)89.6%87.2%Claude Opus 4.6
Humanity's Last Exam (Artificial Analysis run)39.9%31.9%Claude Opus 4.6
GPQA Diamond (Epoch AI run)90.5%88.3%Claude Opus 4.6
ARC-AGI94.0%79.5%Claude Opus 4.6
ARC-AGI-269.2%36.5%Claude Opus 4.6
SimpleBench67.6%50.0%Claude Opus 4.6
Chess puzzles21.0%21.0%Tie
Mystery game puzzles25.0%Not measuredOnly Claude Opus 4.6 measured
EBR-bench12.7%Not measuredOnly Claude Opus 4.6 measured
LMArena Text: hard prompts15251451Claude Opus 4.6
LMArena Text: expert15441466Claude Opus 4.6
LMArena Text: hard prompts in English15301448Claude Opus 4.6
LMArena Vision: diagrams1340Not measuredOnly Claude Opus 4.6 measured
LMArena Vision: homework1337Not measuredOnly Claude Opus 4.6 measured
Kagi LLM Benchmark83.6%Not measuredOnly Claude Opus 4.6 measured
Neither model has a result on the other 4 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index60
Math benchmarks for Claude Opus 4.6 and Inkling
BenchmarkClaude Opus 4.6InklingLeader
AIME95.6%Not measuredOnly Claude Opus 4.6 measured
OTIS Mock AIME94.4%88.9%Claude Opus 4.6
FrontierMath, tiers 1 to 366.0%33.3%Claude Opus 4.6
FrontierMath, tier 426.8%4.9%Claude Opus 4.6
ProofBench50.0%0.0%Claude Opus 4.6
LMArena Text: math15181479Claude Opus 4.6
LMArena Text: mathematical work15251460Claude Opus 4.6
Neither model has a result on the other 6 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index101
Knowledge benchmarks for Claude Opus 4.6 and Inkling
BenchmarkClaude Opus 4.6InklingLeader
MMLU Pro89.1%86.3%Claude Opus 4.6
LegalBench (Vals AI)85.3%83.0%Claude Opus 4.6
CaseLaw (Vals AI)62.1%Not measuredOnly Claude Opus 4.6 measured
CorpFin (Vals AI)67.0%68.6%Inkling
TaxEval (Vals AI)76.0%75.3%Claude Opus 4.6
MortgageTax (Vals AI)68.5%64.0%Claude Opus 4.6
MedQA (Vals AI)95.4%Not measuredOnly Claude Opus 4.6 measured
MedCode (Vals AI)49.1%41.2%Claude Opus 4.6
SimpleQA Verified47.0%40.3%Claude Opus 4.6
LMArena Text: science15191455Claude Opus 4.6
LMArena Text: medicine and healthcare15041447Claude Opus 4.6
LMArena Text: legal and government15121448Claude Opus 4.6
LMArena Text: business and finance14971438Claude Opus 4.6
FACTS Benchmark Suite41.5%Not measuredOnly Claude Opus 4.6 measured
Neither model has a result on the other 4 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index80
Web design benchmarks for Claude Opus 4.6 and Inkling
BenchmarkClaude Opus 4.6InklingLeader
Design Arena: websites12911224Claude Opus 4.6
Design Arena: UI components12811198Claude Opus 4.6
Design Arena: game dev12771165Claude Opus 4.6
Design Arena: data viz12791156Claude Opus 4.6
Design Arena: 3D12731160Claude Opus 4.6
Design Arena: all code categories12881205Claude Opus 4.6
Design Arena: SVG12271108Claude Opus 4.6
Design Arena: ASCII art12551089Claude Opus 4.6
LiveBench designNot measured58.3%Only Inkling measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index220
General benchmarks for Claude Opus 4.6 and Inkling
BenchmarkClaude Opus 4.6InklingLeader
Vals IndexNot measured29.0%Only Inkling measured
LiveBench data analysisNot measured72.8%Only Inkling measured
Public Benefits Bench (Vals AI)Not measured58.5%Only Inkling measured
SAGE (Vals AI)51.6%36.5%Claude Opus 4.6
MedScribe (Vals AI)86.7%85.4%Claude Opus 4.6
Vals Multimodal IndexNot measured49.4%Only Inkling measured
IFBench53.1%Not measuredOnly Claude Opus 4.6 measured
Long context reasoning (AA-LCR)78.0%77.3%Claude Opus 4.6
DTBench91.2%87.5%Claude Opus 4.6
LMCA55.8%37.6%Claude Opus 4.6
CL-bench20.7%Not measuredOnly Claude Opus 4.6 measured
Furniture assembly28.3%Not measuredOnly Claude Opus 4.6 measured
CL-bench Life17.0%Not measuredOnly Claude Opus 4.6 measured
LMArena Text15011442Claude Opus 4.6
LMArena Text: instruction following15211425Claude Opus 4.6
LMArena Text: creative writing15051390Claude Opus 4.6
LMArena Vision1316Not measuredOnly Claude Opus 4.6 measured
LMArena Text: English15111442Claude Opus 4.6
LMArena Text: non-English14881434Claude Opus 4.6
LMArena Text: Chinese15511493Claude Opus 4.6
LMArena Text: German15001445Claude Opus 4.6
LMArena Text: Japanese14881429Claude Opus 4.6
LMArena Text: Korean14641403Claude Opus 4.6
LMArena Text: French15121455Claude Opus 4.6
LMArena Text: Spanish15101449Claude Opus 4.6
LMArena Text: Russian14971430Claude Opus 4.6
LMArena Text: Polish14991450Claude Opus 4.6
LMArena Text: multi-turn15111437Claude Opus 4.6
LMArena Text: longer queries15181435Claude Opus 4.6
LMArena Text: writing and language15021404Claude Opus 4.6
LMArena Text: entertainment and media14921394Claude Opus 4.6
LMArena Vision: English1324Not measuredOnly Claude Opus 4.6 measured
LMArena Vision: Chinese1370Not measuredOnly Claude Opus 4.6 measured
LMArena Vision: reading text1326Not measuredOnly Claude Opus 4.6 measured
LMArena Vision: humor1314Not measuredOnly Claude Opus 4.6 measured
LMArena Vision: recognizing things1274Not measuredOnly Claude Opus 4.6 measured
LMArena Vision: creative writing1331Not measuredOnly Claude Opus 4.6 measured
LMArena Document1507Not measuredOnly Claude Opus 4.6 measured
Neither model has a result on the other 8 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Claude Opus 4.6 and Inkling
BenchmarkClaude Opus 4.6InklingLeader
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 Opus 4.6$0.018Fits in one request
Inkling$0.0030Fits in one request

Inkling costs less

Repository review

50K input + 3K output tokens

Claude Opus 4.6$0.325Fits in one request
Inkling$0.061Fits in one request

Inkling costs less

Agent loop

200K input + 10K output tokens

Claude Opus 4.6$1.25Fits in one request
Inkling$0.235Fits in one request

Inkling 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 Opus 4.6 and Inkling
SpecificationAnthropic Claude Opus 4.6Thinking Machines Inkling
MakerAnthropicThinking Machines
WeightsNo public weights listedOpen weights
ReleasedFebruary 4, 2026July 17, 2026
Context window1M524K
Input $/Mtok$5.00$0.975
Output $/Mtok$25.00$4.05
Coding index57.231.5
Independent measurements behind it46
Cost per solved task$1.56$0.76
SourceOpenRouter listingOpenRouter listing

Questions

Is Claude Opus 4.6 better than Inkling for coding?

Pick Claude Opus 4.6 for coding: it scores 57.2 on the Vibe Coding Index against 31.5 for Inkling, though on 4 benchmarks against 6. Pick Inkling for output tokens 6.2x cheaper ($4.05 vs $25.00 per million) and a lower cost per solved task ($0.76 against $1.56).

Which is cheaper, Claude Opus 4.6 or Inkling?

Claude Opus 4.6 costs $5.00 per million input tokens and $25.00 per million output tokens; Inkling costs $0.975 and $4.05. Per solved SWE-bench Verified task, Claude Opus 4.6 costs $1.56 and Inkling $0.76.

Which has the bigger context window, Claude Opus 4.6 or Inkling?

Claude Opus 4.6, with 1M tokens against 524K.

How many benchmarks is the Claude Opus 4.6 vs Inkling comparison based on?

73 benchmarks have a result for both models as of October 22, 2026. Claude Opus 4.6's coding index rests on 4 independent benchmarks and Inkling's on 6. Where only one model has a result, the page says so instead of naming a winner.

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