Claude Opus 4.6 vs Ling 3.1 Flash
Ling 3.1 Flash leads Claude Opus 4.6 on the Artificial Analysis Intelligence Index, 41.1 to 31.9, and Ling 3.1 Flash costs 111.1x less per output token ($0.225 vs $25.00 per million). Updated October 22, 2026; 3 benchmarks have a result for both.
Claude Opus 4.6 or Ling 3.1 Flash: which to pick
Only Claude Opus 4.6 has a coding score, 57.2 on the Vibe Coding Index; Ling 3.1 Flash has none, so the two cannot be ranked on coding.
Pick Ling 3.1 Flash for output tokens 111.1x cheaper ($0.225 vs $25.00 per million) and work measured by AA Intelligence Index or Long context reasoning (AA-LCR), where it leads.
- Shared results
- 3
- Claude Opus 4.6 only
- 116
- Ling 3.1 Flash only
- 1
- Like-for-like categories
- 3 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.
Coding
Vibe Coding Index, six public coding benchmarks
No call
Only Claude Opus 4.6 has a coding score, so no call is made.
One side not measured
Intelligence
AA Intelligence Index
Ling 3.1 Flash
Ling 3.1 Flash leads, 41.1 against 31.9.
Same board, both measured
Reasoning
GPQA Diamond
No call
Only Claude Opus 4.6 has a GPQA Diamond result, 89.7%.
Directional only
Math
AIME
No call
Only Claude Opus 4.6 has a AIME result, 95.6%.
Directional only
Knowledge
MMLU Pro
No call
Only Claude Opus 4.6 has a MMLU Pro result, 89.1%.
Directional only
Web design
Design Arena: websites
No call
Only Claude Opus 4.6 has a Design Arena: websites result, 1291.
Directional only
Long documents
Listed context window
Claude Opus 4.6
Claude Opus 4.6 takes 1M tokens against 262K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Ling 3.1 Flash
Claude Opus 4.6 $0.018, Ling 3.1 Flash $0.0002 per turn.
List prices
Cost per solved task
One SWE-bench Verified task, solved
No call
Only Claude Opus 4.6 has the number, $1.56.
Directional only
At a glance
- Coding index
- Claude Opus 4.6 57.2 from 4 benchmarks, Ling 3.1 Flash not benchmarked.
- Widest category
- Intelligence, 9.2 points apart on average over 1 shared benchmark.
- Widest single gap
- AA Intelligence Index: Claude Opus 4.6 31.9 against Ling 3.1 Flash 41.1, 9.2 points apart on a 0 to 100 scale.
- Output price
- Claude Opus 4.6 $25.00 against Ling 3.1 Flash $0.225 per million output tokens, 111.1x apart.
- Context window
- Claude Opus 4.6 takes 1M tokens, Ling 3.1 Flash 262K.
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.
| Category | Claude Opus 4.6 | Bars | Ling 3.1 Flash | Ties |
|---|---|---|---|---|
| Intelligence | 0 | 1 | ||
| Reasoning | 1 | 0 | ||
| General | 0 | 1 | ||
| All shared boards | 1 | 2 |
CodingDirectional onlySix of these boards feed the Vibe Coding Index21 boards, none shared
| Benchmark | Claude Opus 4.6 | Ling 3.1 Flash | Leader |
|---|---|---|---|
| SWE-bench Verified | 75.6% | Not measured | Only Claude Opus 4.6 measured |
| SWE-bench Multilingual | 72.0% | Not measured | Only Claude Opus 4.6 measured |
| LMArena WebDev | 1547 | Not measured | Only Claude Opus 4.6 measured |
| LiveCodeBench (Vals AI) | 84.7% | Not measured | Only Claude Opus 4.6 measured |
| SWE-bench Verified (Vals AI) | 78.2% | Not measured | Only Claude Opus 4.6 measured |
| Vibe Code Bench (Vals AI) | 57.6% | Not measured | Only Claude Opus 4.6 measured |
| SciCode | Not measured | 54.1% | Only Ling 3.1 Flash measured |
| Terminal-Bench Hard (Artificial Analysis run) | 48.5% | Not measured | Only Claude Opus 4.6 measured |
| Terminal-Bench | 79.8% | Not measured | Only Claude Opus 4.6 measured |
| FrontierCode | 26.6% | Not measured | Only Claude Opus 4.6 measured |
| GSO-Bench | 41.2% | Not measured | Only Claude Opus 4.6 measured |
| WeirdML | 78.0% | Not measured | Only Claude Opus 4.6 measured |
| Cybench | 93.0% | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: coding | 1534 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: software and IT | 1527 | Not measured | Only Claude Opus 4.6 measured |
| LMArena WebDev: React | 1539 | Not measured | Only Claude Opus 4.6 measured |
| LMArena WebDev: HTML | 1559 | Not measured | Only Claude Opus 4.6 measured |
| LMArena WebDev: from an image | 1543 | Not measured | Only Claude Opus 4.6 measured |
| SWE Atlas: Codebase QnA | 33.3% | Not measured | Only Claude Opus 4.6 measured |
| SWE Atlas: Refactoring | 35.6% | Not measured | Only Claude Opus 4.6 measured |
| SWE Atlas: Test Writing | 36.7% | Not measured | Only Claude Opus 4.6 measured |
| Neither model has a result on the other 22 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Claude Opus 4.6 | Ling 3.1 Flash | Leader |
|---|---|---|---|
| AA Intelligence Index | 31.9 | 41.1 | Ling 3.1 Flash |
| Epoch Capabilities Index | 155.7 | Not measured | Only Claude Opus 4.6 measured |
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index12 boards, none shared
| Benchmark | Claude Opus 4.6 | Ling 3.1 Flash | Leader |
|---|---|---|---|
| Design Arena: agents building web apps | 1206 | Not measured | Only Claude Opus 4.6 measured |
| Design Arena: agents building full-stack apps | 1220 | Not measured | Only Claude Opus 4.6 measured |
| Design Arena: agents building mobile apps | 1207 | Not measured | Only Claude Opus 4.6 measured |
| Design Arena: agents building Android apps | 1197 | Not measured | Only Claude Opus 4.6 measured |
| Design Arena: agents building games | 1213 | Not measured | Only Claude Opus 4.6 measured |
| τ²-Bench Telecom | 92.1% | Not measured | Only Claude Opus 4.6 measured |
| APEX-Agents | 46.3% | Not measured | Only Claude Opus 4.6 measured |
| METR time horizons | 78.9% | Not measured | Only Claude Opus 4.6 measured |
| Remote Labor Index | 4.2% | Not measured | Only Claude Opus 4.6 measured |
| DeepResearch Bench | 55.3% | Not measured | Only Claude Opus 4.6 measured |
| Vending-Bench 2 | $8,018 | Not measured | Only Claude Opus 4.6 measured |
| MCP Atlas | 76.8% | Not measured | Only Claude Opus 4.6 measured |
| Neither model has a result on the other 30 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index10
| Benchmark | Claude Opus 4.6 | Ling 3.1 Flash | Leader |
|---|---|---|---|
| GPQA Diamond | 89.7% | Not measured | Only Claude Opus 4.6 measured |
| MMMU Pro (Vals AI) | 83.9% | Not measured | Only Claude Opus 4.6 measured |
| GPQA Diamond (Artificial Analysis run) | 89.6% | Not measured | Only Claude Opus 4.6 measured |
| Humanity's Last Exam (Artificial Analysis run) | 39.9% | 39.4% | Claude Opus 4.6 |
| GPQA Diamond (Epoch AI run) | 90.5% | Not measured | Only Claude Opus 4.6 measured |
| ARC-AGI | 94.0% | Not measured | Only Claude Opus 4.6 measured |
| ARC-AGI-2 | 69.2% | Not measured | Only Claude Opus 4.6 measured |
| SimpleBench | 67.6% | Not measured | Only Claude Opus 4.6 measured |
| Chess puzzles | 21.0% | Not measured | Only Claude Opus 4.6 measured |
| Mystery game puzzles | 25.0% | Not measured | Only Claude Opus 4.6 measured |
| EBR-bench | 12.7% | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: hard prompts | 1525 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: expert | 1544 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: hard prompts in English | 1530 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Vision: diagrams | 1340 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Vision: homework | 1337 | Not measured | Only Claude Opus 4.6 measured |
| Kagi LLM Benchmark | 83.6% | Not measured | Only Claude Opus 4.6 measured |
| Neither model has a result on the other 6 boards here | |||
MathDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
| Benchmark | Claude Opus 4.6 | Ling 3.1 Flash | Leader |
|---|---|---|---|
| AIME | 95.6% | Not measured | Only Claude Opus 4.6 measured |
| OTIS Mock AIME | 94.4% | Not measured | Only Claude Opus 4.6 measured |
| FrontierMath, tiers 1 to 3 | 66.0% | Not measured | Only Claude Opus 4.6 measured |
| FrontierMath, tier 4 | 26.8% | Not measured | Only Claude Opus 4.6 measured |
| ProofBench | 50.0% | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: math | 1518 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: mathematical work | 1525 | Not measured | Only Claude Opus 4.6 measured |
| MathArena | 23.6% | Not measured | Only Claude Opus 4.6 measured |
| Neither model has a result on the other 6 boards here | |||
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index16 boards, none shared
| Benchmark | Claude Opus 4.6 | Ling 3.1 Flash | Leader |
|---|---|---|---|
| MMLU Pro | 89.1% | Not measured | Only Claude Opus 4.6 measured |
| LegalBench (Vals AI) | 85.3% | Not measured | Only Claude Opus 4.6 measured |
| CaseLaw (Vals AI) | 62.1% | Not measured | Only Claude Opus 4.6 measured |
| CorpFin (Vals AI) | 67.0% | Not measured | Only Claude Opus 4.6 measured |
| TaxEval (Vals AI) | 76.0% | Not measured | Only Claude Opus 4.6 measured |
| MortgageTax (Vals AI) | 68.5% | Not measured | Only Claude Opus 4.6 measured |
| MedQA (Vals AI) | 95.4% | Not measured | Only Claude Opus 4.6 measured |
| MedCode (Vals AI) | 49.1% | Not measured | Only Claude Opus 4.6 measured |
| SimpleQA Verified | 47.0% | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: science | 1519 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: medicine and healthcare | 1504 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: legal and government | 1512 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: business and finance | 1497 | Not measured | Only Claude Opus 4.6 measured |
| FACTS Benchmark Suite | 41.5% | Not measured | Only Claude Opus 4.6 measured |
| PRBench Finance | 53.3% | Not measured | Only Claude Opus 4.6 measured |
| PRBench Legal | 52.3% | Not measured | Only Claude Opus 4.6 measured |
| Neither model has a result on the other 4 boards here | |||
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
| Benchmark | Claude Opus 4.6 | Ling 3.1 Flash | Leader |
|---|---|---|---|
| Design Arena: websites | 1291 | Not measured | Only Claude Opus 4.6 measured |
| Design Arena: UI components | 1282 | Not measured | Only Claude Opus 4.6 measured |
| Design Arena: game dev | 1277 | Not measured | Only Claude Opus 4.6 measured |
| Design Arena: data viz | 1280 | Not measured | Only Claude Opus 4.6 measured |
| Design Arena: 3D | 1273 | Not measured | Only Claude Opus 4.6 measured |
| Design Arena: all code categories | 1288 | Not measured | Only Claude Opus 4.6 measured |
| Design Arena: SVG | 1227 | Not measured | Only Claude Opus 4.6 measured |
| Design Arena: ASCII art | 1255 | Not measured | Only Claude Opus 4.6 measured |
| Neither model has a result on the other 1 board here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index01
| Benchmark | Claude Opus 4.6 | Ling 3.1 Flash | Leader |
|---|---|---|---|
| SAGE (Vals AI) | 51.6% | Not measured | Only Claude Opus 4.6 measured |
| MedScribe (Vals AI) | 86.7% | Not measured | Only Claude Opus 4.6 measured |
| IFBench | 53.1% | Not measured | Only Claude Opus 4.6 measured |
| Long context reasoning (AA-LCR) | 78.0% | 83.0% | Ling 3.1 Flash |
| DTBench | 91.2% | Not measured | Only Claude Opus 4.6 measured |
| LMCA | 55.8% | Not measured | Only Claude Opus 4.6 measured |
| CL-bench | 20.7% | Not measured | Only Claude Opus 4.6 measured |
| Furniture assembly | 28.3% | Not measured | Only Claude Opus 4.6 measured |
| CL-bench Life | 17.0% | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text | 1501 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: instruction following | 1521 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: creative writing | 1505 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Vision | 1316 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: English | 1511 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: non-English | 1488 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: Chinese | 1551 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: German | 1500 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: Japanese | 1488 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: Korean | 1464 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: French | 1512 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: Spanish | 1510 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: Russian | 1497 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: Polish | 1499 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: multi-turn | 1511 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: longer queries | 1518 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: writing and language | 1502 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Text: entertainment and media | 1492 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Vision: English | 1324 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Vision: Chinese | 1370 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Vision: reading text | 1326 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Vision: humor | 1314 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Vision: recognizing things | 1274 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Vision: creative writing | 1331 | Not measured | Only Claude Opus 4.6 measured |
| LMArena Document | 1507 | Not measured | Only Claude Opus 4.6 measured |
| MultiChallenge | 56.0% | Not measured | Only Claude Opus 4.6 measured |
| EQ-Bench 4 | 1223 | Not measured | Only Claude Opus 4.6 measured |
| Neither model has a result on the other 12 boards here | |||
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
| Benchmark | Claude Opus 4.6 | Ling 3.1 Flash | Leader |
|---|---|---|---|
| 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
Ling 3.1 Flash costs less
Repository review
50K input + 3K output tokens
Ling 3.1 Flash costs less
Agent loop
200K input + 10K output tokens
Ling 3.1 Flash 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.
| Specification | Anthropic Claude Opus 4.6 | inclusionAI Ling 3.1 Flash |
|---|---|---|
| Maker | Anthropic | inclusionAI |
| Weights | No public weights listed | No public weights listed |
| Released | February 4, 2026 | October 2, 2026 |
| Context window | 1M | 262K |
| Input $/Mtok | $5.00 | $0.075 |
| Output $/Mtok | $25.00 | $0.225 |
| Coding index | 57.2 | Not benchmarked |
| Independent measurements behind it | 4 | 0 |
| Cost per solved task | $1.56 | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Claude Opus 4.6 better than Ling 3.1 Flash for coding?
Only Claude Opus 4.6 has a coding score, 57.2 on the Vibe Coding Index; Ling 3.1 Flash has none, so the two cannot be ranked on coding. Pick Ling 3.1 Flash for output tokens 111.1x cheaper ($0.225 vs $25.00 per million) and work measured by AA Intelligence Index or Long context reasoning (AA-LCR), where it leads.
Which is cheaper, Claude Opus 4.6 or Ling 3.1 Flash?
Claude Opus 4.6 costs $5.00 per million input tokens and $25.00 per million output tokens; Ling 3.1 Flash costs $0.075 and $0.225. Cost per solved task is known for Claude Opus 4.6 only.
Which has the bigger context window, Claude Opus 4.6 or Ling 3.1 Flash?
Claude Opus 4.6, with 1M tokens against 262K.
How many benchmarks is the Claude Opus 4.6 vs Ling 3.1 Flash comparison based on?
3 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 Ling 3.1 Flash's on 0. Where only one model has a result, the page says so instead of naming a winner.