Claude Opus 4.7 vs DeepSeek V4 Flash 0423
Claude Opus 4.7 leads DeepSeek V4 Flash 0423 on the Artificial Analysis Intelligence Index, 40.7 to 24.4, and DeepSeek V4 Flash 0423 costs 89.3x less per output token ($0.28 vs $25.00 per million). Updated October 22, 2026; 40 benchmarks have a result for both.
Claude Opus 4.7 or DeepSeek V4 Flash 0423: which to pick
Only Claude Opus 4.7 has a coding score, 67.5 on the Vibe Coding Index; DeepSeek V4 Flash 0423 has none, so the two cannot be ranked on coding.
Pick DeepSeek V4 Flash 0423 for output tokens 89.3x cheaper ($0.28 vs $25.00 per million) and a larger context window (1.05M against 1M tokens).
- Shared results
- 40
- Claude Opus 4.7 only
- 63
- DeepSeek V4 Flash 0423 only
- 9
- Like-for-like categories
- 7 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 4.7 has a coding score, so no call is made.
One side not measured
Intelligence
AA Intelligence Index
Claude Opus 4.7
Claude Opus 4.7 leads, 40.7 against 24.4.
Same board, both measured
Agentic work
AA Agentic Index
Claude Opus 4.7
Claude Opus 4.7 leads, 38.6 against 26.3.
Same board, both measured
Reasoning
GPQA Diamond
No call
Only Claude Opus 4.7 has a GPQA Diamond result, 90.2%.
Directional only
Math
AIME
No call
Only Claude Opus 4.7 has a AIME result, 96.3%.
Directional only
Knowledge
MMLU Pro
No call
Only Claude Opus 4.7 has a MMLU Pro result, 89.9%.
Directional only
Web design
Design Arena: websites
No call
Only DeepSeek V4 Flash 0423 has a Design Arena: websites result, 1207.
Directional only
Long documents
Listed context window
DeepSeek V4 Flash 0423
DeepSeek V4 Flash 0423 takes 1.05M tokens against 1M.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
DeepSeek V4 Flash 0423
Claude Opus 4.7 $0.018, DeepSeek V4 Flash 0423 $0.0003 per turn.
List prices
Cost per solved task
One SWE-bench Verified task, solved
No call
Only Claude Opus 4.7 has the number, $2.95.
Directional only
At a glance
- Coding index
- Claude Opus 4.7 67.5 from 4 benchmarks, DeepSeek V4 Flash 0423 not benchmarked.
- Widest category
- Reasoning, 15.5 points apart on average over 5 shared benchmarks.
- Widest single gap
- WeirdML: Claude Opus 4.7 76.4% against DeepSeek V4 Flash 0423 45.6%, 30.8 points apart on a 0 to 100 scale.
- Output price
- Claude Opus 4.7 $25.00 against DeepSeek V4 Flash 0423 $0.28 per million output tokens, 89.3x apart.
- Context window
- Claude Opus 4.7 takes 1M tokens, DeepSeek V4 Flash 0423 1.05M.
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 4.7 | Bars | DeepSeek V4 Flash 0423 | Ties |
|---|---|---|---|---|
| Coding | 4 | 3 | ||
| Intelligence | 2 | 0 | ||
| Agentic work | 1 | 0 | ||
| Reasoning | 5 | 0 | ||
| Math | 2 | 0 | ||
| Knowledge | 4 | 0 | ||
| General | 19 | 0 | ||
| All shared boards | 37 | 3 |
CodingLike-for-likeSix of these boards feed the Vibe Coding Index43
| Benchmark | Claude Opus 4.7 | DeepSeek V4 Flash 0423 | Leader |
|---|---|---|---|
| LMArena WebDev | 1558 | 1582 | DeepSeek V4 Flash 0423 |
| AA Coding Index | 73.6 | 52.0 | Claude Opus 4.7 |
| LiveCodeBench (Vals AI) | 85.1% | Not measured | Only Claude Opus 4.7 measured |
| SWE-bench Verified (Vals AI) | 82.0% | Not measured | Only Claude Opus 4.7 measured |
| Vibe Code Bench (Vals AI) | 71.0% | Not measured | Only Claude Opus 4.7 measured |
| Code migration (Vals AI) | 43.9% | Not measured | Only Claude Opus 4.7 measured |
| ProgramBench (Vals AI) | 0.0% | Not measured | Only Claude Opus 4.7 measured |
| Terminal-Bench 2.1 (Vals AI) | 68.5% | Not measured | Only Claude Opus 4.7 measured |
| Terminal-Bench Hard (Artificial Analysis run) | 54.5% | Not measured | Only Claude Opus 4.7 measured |
| Terminal-Bench | 80.2% | Not measured | Only Claude Opus 4.7 measured |
| FrontierCode | 38.5% | Not measured | Only Claude Opus 4.7 measured |
| GSO-Bench | 44.1% | Not measured | Only Claude Opus 4.7 measured |
| WeirdML | 76.4% | 45.6% | Claude Opus 4.7 |
| MirrorCode | 31.1% | Not measured | Only Claude Opus 4.7 measured |
| ALE-Bench | Not measured | 678.2 | Only DeepSeek V4 Flash 0423 measured |
| LMArena Text: coding | 1519 | 1457 | Claude Opus 4.7 |
| LMArena Text: software and IT | 1516 | 1453 | Claude Opus 4.7 |
| LMArena WebDev: React | 1560 | 1585 | DeepSeek V4 Flash 0423 |
| LMArena WebDev: HTML | 1554 | 1558 | DeepSeek V4 Flash 0423 |
| LMArena WebDev: from an image | 1577 | Not measured | Only Claude Opus 4.7 measured |
| Neither model has a result on the other 19 boards here | |||
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
| Benchmark | Claude Opus 4.7 | DeepSeek V4 Flash 0423 | Leader |
|---|---|---|---|
| AA Intelligence Index | 40.7 | 24.4 | Claude Opus 4.7 |
| Epoch Capabilities Index | 156.8 | 146.1 | Claude Opus 4.7 |
Agentic workLike-for-likePublic boards, shown as published, kept out of the index10
| Benchmark | Claude Opus 4.7 | DeepSeek V4 Flash 0423 | Leader |
|---|---|---|---|
| AA Agentic Index | 38.6 | 26.3 | Claude Opus 4.7 |
| Finance Agent (Vals AI) | 51.5% | Not measured | Only Claude Opus 4.7 measured |
| Tax Agent Bench (Vals AI) | 23.7% | Not measured | Only Claude Opus 4.7 measured |
| Legal Research Bench (Vals AI) | 38.5% | Not measured | Only Claude Opus 4.7 measured |
| Excel Modeling Benchmark (Vals AI) | 63.7% | Not measured | Only Claude Opus 4.7 measured |
| τ²-Bench Telecom | 88.6% | Not measured | Only Claude Opus 4.7 measured |
| APEX-Agents | 49.2% | Not measured | Only Claude Opus 4.7 measured |
| OSWorld 2.0 | 18.2% | Not measured | Only Claude Opus 4.7 measured |
| PostTrainBench | 28.6% | Not measured | Only Claude Opus 4.7 measured |
| Vending-Bench 2 | $10,937 | Not measured | Only Claude Opus 4.7 measured |
| LMArena Search | 1230 | Not measured | Only Claude Opus 4.7 measured |
| Neither model has a result on the other 30 boards here | |||
ReasoningLike-for-likePublic boards, shown as published, kept out of the index50
| Benchmark | Claude Opus 4.7 | DeepSeek V4 Flash 0423 | Leader |
|---|---|---|---|
| GPQA Diamond | 90.2% | Not measured | Only Claude Opus 4.7 measured |
| MMMU Pro (Vals AI) | 85.5% | Not measured | Only Claude Opus 4.7 measured |
| GPQA Diamond (Artificial Analysis run) | 91.4% | Not measured | Only Claude Opus 4.7 measured |
| Humanity's Last Exam (Artificial Analysis run) | 42.3% | Not measured | Only Claude Opus 4.7 measured |
| GPQA Diamond (Epoch AI run) | 90.2% | Not measured | Only Claude Opus 4.7 measured |
| ARC-AGI | 93.5% | Not measured | Only Claude Opus 4.7 measured |
| ARC-AGI-2 | 75.8% | Not measured | Only Claude Opus 4.7 measured |
| SimpleBench | 61.7% | 46.3% | Claude Opus 4.7 |
| Chess puzzles | 41.0% | Not measured | Only Claude Opus 4.7 measured |
| Mystery game puzzles | 28.0% | Not measured | Only Claude Opus 4.7 measured |
| EBR-bench | 19.0% | Not measured | Only Claude Opus 4.7 measured |
| LMArena Text: hard prompts | 1506 | 1444 | Claude Opus 4.7 |
| LMArena Text: expert | 1521 | 1441 | Claude Opus 4.7 |
| LMArena Text: hard prompts in English | 1508 | 1449 | Claude Opus 4.7 |
| LMArena Vision: diagrams | 1336 | Not measured | Only Claude Opus 4.7 measured |
| LMArena Vision: homework | 1337 | Not measured | Only Claude Opus 4.7 measured |
| Kagi LLM Benchmark | 80.7% | 52.2% | Claude Opus 4.7 |
| Neither model has a result on the other 5 boards here | |||
MathLike-for-likePublic boards, shown as published, kept out of the index20
| Benchmark | Claude Opus 4.7 | DeepSeek V4 Flash 0423 | Leader |
|---|---|---|---|
| AIME | 96.3% | Not measured | Only Claude Opus 4.7 measured |
| OTIS Mock AIME | 97.8% | Not measured | Only Claude Opus 4.7 measured |
| FrontierMath, tiers 1 to 3 | 70.2% | Not measured | Only Claude Opus 4.7 measured |
| FrontierMath, tier 4 | 31.7% | Not measured | Only Claude Opus 4.7 measured |
| ProofBench | 54.0% | Not measured | Only Claude Opus 4.7 measured |
| LMArena Text: math | 1498 | 1426 | Claude Opus 4.7 |
| LMArena Text: mathematical work | 1509 | 1432 | Claude Opus 4.7 |
| Neither model has a result on the other 6 boards here | |||
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index40
| Benchmark | Claude Opus 4.7 | DeepSeek V4 Flash 0423 | Leader |
|---|---|---|---|
| MMLU Pro | 89.9% | Not measured | Only Claude Opus 4.7 measured |
| LegalBench (Vals AI) | 85.3% | Not measured | Only Claude Opus 4.7 measured |
| CaseLaw (Vals AI) | 68.4% | Not measured | Only Claude Opus 4.7 measured |
| CorpFin (Vals AI) | 66.1% | Not measured | Only Claude Opus 4.7 measured |
| TaxEval (Vals AI) | 75.3% | Not measured | Only Claude Opus 4.7 measured |
| MortgageTax (Vals AI) | 70.3% | Not measured | Only Claude Opus 4.7 measured |
| MedCode (Vals AI) | 54.9% | Not measured | Only Claude Opus 4.7 measured |
| SimpleQA Verified | 51.7% | Not measured | Only Claude Opus 4.7 measured |
| LMArena Text: science | 1508 | 1446 | Claude Opus 4.7 |
| LMArena Text: medicine and healthcare | 1495 | 1448 | Claude Opus 4.7 |
| LMArena Text: legal and government | 1504 | 1439 | Claude Opus 4.7 |
| LMArena Text: business and finance | 1490 | 1425 | Claude Opus 4.7 |
| FACTS Benchmark Suite | 45.5% | Not measured | Only Claude Opus 4.7 measured |
| Neither model has a result on the other 5 boards here | |||
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
| Benchmark | Claude Opus 4.7 | DeepSeek V4 Flash 0423 | Leader |
|---|---|---|---|
| Design Arena: websites | Not measured | 1207 | Only DeepSeek V4 Flash 0423 measured |
| Design Arena: UI components | Not measured | 1162 | Only DeepSeek V4 Flash 0423 measured |
| Design Arena: game dev | Not measured | 1196 | Only DeepSeek V4 Flash 0423 measured |
| Design Arena: data viz | Not measured | 1127 | Only DeepSeek V4 Flash 0423 measured |
| Design Arena: 3D | Not measured | 1188 | Only DeepSeek V4 Flash 0423 measured |
| Design Arena: all code categories | Not measured | 1205 | Only DeepSeek V4 Flash 0423 measured |
| Design Arena: SVG | Not measured | 1155 | Only DeepSeek V4 Flash 0423 measured |
| Design Arena: ASCII art | Not measured | 1109 | Only DeepSeek V4 Flash 0423 measured |
| Neither model has a result on the other 1 board here | |||
GeneralLike-for-likePublic boards, shown as published, kept out of the index190
| Benchmark | Claude Opus 4.7 | DeepSeek V4 Flash 0423 | Leader |
|---|---|---|---|
| SAGE (Vals AI) | 56.1% | Not measured | Only Claude Opus 4.7 measured |
| MedScribe (Vals AI) | 83.0% | Not measured | Only Claude Opus 4.7 measured |
| Vals Multimodal Index | 67.4% | Not measured | Only Claude Opus 4.7 measured |
| IFBench | 58.6% | Not measured | Only Claude Opus 4.7 measured |
| Long context reasoning (AA-LCR) | 78.7% | Not measured | Only Claude Opus 4.7 measured |
| DTBench | 94.7% | 86.4% | Claude Opus 4.7 |
| LMCA | 52.2% | 35.9% | Claude Opus 4.7 |
| Furniture assembly | 33.3% | Not measured | Only Claude Opus 4.7 measured |
| ExploitBench | 26.5% | Not measured | Only Claude Opus 4.7 measured |
| LMArena Text | 1490 | 1432 | Claude Opus 4.7 |
| LMArena Text: instruction following | 1498 | 1421 | Claude Opus 4.7 |
| LMArena Text: creative writing | 1486 | 1403 | Claude Opus 4.7 |
| LMArena Vision | 1317 | Not measured | Only Claude Opus 4.7 measured |
| LMArena Text: English | 1496 | 1441 | Claude Opus 4.7 |
| LMArena Text: non-English | 1480 | 1419 | Claude Opus 4.7 |
| LMArena Text: Chinese | 1531 | 1463 | Claude Opus 4.7 |
| LMArena Text: German | 1495 | 1419 | Claude Opus 4.7 |
| LMArena Text: Japanese | 1474 | 1389 | Claude Opus 4.7 |
| LMArena Text: Korean | 1464 | 1383 | Claude Opus 4.7 |
| LMArena Text: French | 1503 | 1439 | Claude Opus 4.7 |
| LMArena Text: Spanish | 1494 | 1436 | Claude Opus 4.7 |
| LMArena Text: Russian | 1494 | 1427 | Claude Opus 4.7 |
| LMArena Text: Polish | 1489 | 1436 | Claude Opus 4.7 |
| LMArena Text: multi-turn | 1505 | 1449 | Claude Opus 4.7 |
| LMArena Text: longer queries | 1505 | 1434 | Claude Opus 4.7 |
| LMArena Text: writing and language | 1492 | 1410 | Claude Opus 4.7 |
| LMArena Text: entertainment and media | 1474 | 1400 | Claude Opus 4.7 |
| LMArena Vision: English | 1322 | Not measured | Only Claude Opus 4.7 measured |
| LMArena Vision: Chinese | 1371 | Not measured | Only Claude Opus 4.7 measured |
| LMArena Vision: reading text | 1327 | Not measured | Only Claude Opus 4.7 measured |
| LMArena Vision: humor | 1309 | Not measured | Only Claude Opus 4.7 measured |
| LMArena Vision: recognizing things | 1278 | Not measured | Only Claude Opus 4.7 measured |
| LMArena Vision: creative writing | 1326 | Not measured | Only Claude Opus 4.7 measured |
| LMArena Document | 1495 | Not measured | Only Claude Opus 4.7 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 4.7 | DeepSeek V4 Flash 0423 | 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
DeepSeek V4 Flash 0423 costs less
Repository review
50K input + 3K output tokens
DeepSeek V4 Flash 0423 costs less
Agent loop
200K input + 10K output tokens
DeepSeek V4 Flash 0423 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 4.7 | DeepSeek V4 Flash 0423 |
|---|---|---|
| Maker | Anthropic | DeepSeek |
| Weights | No public weights listed | Open weights |
| Released | April 16, 2026 | April 24, 2026 |
| Context window | 1M | 1.05M |
| Input $/Mtok | $5.00 | $0.14 |
| Output $/Mtok | $25.00 | $0.28 |
| Coding index | 67.5 | Not benchmarked |
| Independent measurements behind it | 4 | 1 |
| Cost per solved task | $2.95 | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Claude Opus 4.7 better than DeepSeek V4 Flash 0423 for coding?
Only Claude Opus 4.7 has a coding score, 67.5 on the Vibe Coding Index; DeepSeek V4 Flash 0423 has none, so the two cannot be ranked on coding. Pick DeepSeek V4 Flash 0423 for output tokens 89.3x cheaper ($0.28 vs $25.00 per million) and a larger context window (1.05M against 1M tokens).
Which is cheaper, Claude Opus 4.7 or DeepSeek V4 Flash 0423?
Claude Opus 4.7 costs $5.00 per million input tokens and $25.00 per million output tokens; DeepSeek V4 Flash 0423 costs $0.14 and $0.28. Cost per solved task is known for Claude Opus 4.7 only.
Which has the bigger context window, Claude Opus 4.7 or DeepSeek V4 Flash 0423?
DeepSeek V4 Flash 0423, with 1.05M tokens against 1M.
How many benchmarks is the Claude Opus 4.7 vs DeepSeek V4 Flash 0423 comparison based on?
40 benchmarks have a result for both models as of October 22, 2026. Claude Opus 4.7's coding index rests on 4 independent benchmarks and DeepSeek V4 Flash 0423's on 1. Where only one model has a result, the page says so instead of naming a winner.