Anthropic: Claude Opus 4.5
Released Nov 24, 2025Try it on:
Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. It offers strong multimodal capabilities, competitive performance across real-world coding and...
Best overall rank
#17
▼ 1 vs 7d ago
Total arena votes
719,420
Across 62 (subset, category) entries
Providers on OR
5
Google + others
First seen
2026-05-08
45 days tracked
Trend
Pricing
Per token
- Input (per 1M)
- $5.00
- Output (per 1M)
- $25.00
- Cache Read (per 1M)
- $0.500
- Cache Write (per 1M)
- $6.25
Per unit
- Web search
- $0.010/call
Capabilities
Modality
text+image+file->textContext
200K tokens
Tokenizer
Claude
Max output
64K tokens
Moderation
Moderated
Supported parameters
include_reasoning
max_tokens
reasoning
response_format
stop
structured_outputs
temperature
tool_choice
tools
top_k
verbosity
Providers
| Provider | Region / Tag | Context | Input/M | Output/M | Uptime 1d | Latency | Quant | Cache |
|---|---|---|---|---|---|---|---|---|
google-vertex/global | 200K | $5.00 | $25.00 | 99.99% | - | - | - | |
| Amazon Bedrock | amazon-bedrock | 200K | $5.00 | $25.00 | 99.99% | - | - | - |
| Anthropic | anthropic/2 | 200K | $5.00 | $25.00 | 99.71% | - | - | - |
| Anthropic | anthropic | 200K | $5.00 | $25.00 | 99.56% | - | - | - |
| Amazon Bedrock | amazon-bedrock/eu-west-1 | 200K | $5.00 | $25.00 | - | - | - | - |
Per-category ranks
Text
| Rank | Category | Variant | Trend | Elo | Votes |
|---|---|---|---|---|---|
| #8 | Coding | thinking-32k | 1530 | 7,622 | |
| #8 | Instruction Following | thinking-32k | 1484 | 9,458 | |
| #9 | Creative Writing | thinking-32k | 1468 | 5,535 | |
| #10 | Longer Query | thinking-32k | 1495 | 9,249 | |
| #11 | Industry Entertainment And Sports And Media | thinking-32k | 1456 | 6,774 | |
| #12 | Hard Prompts English | thinking-32k | 1505 | 9,402 | |
| #12 | Korean | - | 1449 | 1,100 | |
| #12 | Longer Query | - | 1493 | 22,772 | |
| #13 | Creative Writing | - | 1461 | 11,014 | |
| #13 | English | thinking-32k | 1484 | 17,019 | |
| #13 | Industry Software And It Services | thinking-32k | 1512 | 12,728 | |
| #13 | Instruction Following | - | 1475 | 20,748 | |
| #13 | Spanish | thinking-32k | 1471 | 982 | |
| #14 | French | - | 1500 | 1,883 | |
| #14 | Hard Prompts | thinking-32k | 1499 | 19,777 | |
| #14 | Industry Entertainment And Sports And Media | - | 1453 | 13,630 | |
| #14 | Industry Writing And Literature And Language | thinking-32k | 1465 | 8,314 | |
| #14 | Multi Turn | thinking-32k | 1487 | 6,474 | |
| #15 | Coding | - | 1523 | 17,368 | |
| #15 | German | thinking-32k | 1477 | 617 | |
| #15 | Industry Legal And Government | thinking-32k | 1485 | 2,665 | |
| #16 | Exclude Ties | thinking-32k | 1484 | 26,795 | |
| #16 | Hard Prompts | - | 1498 | 41,577 | |
| #16 | Industry Writing And Literature And Language | - | 1465 | 16,312 | |
| #17 | Expert | thinking-32k | 1505 | 2,202 | |
| #17 | Hard Prompts English | - | 1499 | 20,300 | |
| #17 | Industry Legal And Government | - | 1483 | 5,218 | |
| #17 | Japanese | thinking-32k | 1457 | 311 | |
| #17 | Multi Turn | - | 1484 | 12,687 | |
| #18 | Expert | - | 1504 | 5,091 | |
| #19 | German | - | 1471 | 1,089 | |
| #19 | Industry Business And Management And Financial Operations | - | 1472 | 13,667 | |
| #19 | Industry Software And It Services | - | 1507 | 26,350 | |
| #20 | Spanish | - | 1466 | 1,919 | |
| #21 | English | - | 1479 | 33,334 | |
| #21 | French | thinking-32k | 1490 | 766 | |
| #21 | Industry Life And Physical And Social Science | thinking-32k | 1489 | 5,819 | |
| #21 | Japanese | - | 1442 | 581 | |
| #21 | Overall | thinking-32k | 1473 | 37,087 | |
| #22 | Industry Mathematical | - | 1480 | 3,431 | |
| #22 | Russian | - | 1473 | 7,624 | |
| #23 | Industry Life And Physical And Social Science | - | 1487 | 11,111 | |
| #24 | Industry Business And Management And Financial Operations | thinking-32k | 1467 | 6,875 | |
| #24 | Math | thinking-32k | 1470 | 2,266 | |
| #25 | Industry Medicine And Healthcare | thinking-32k | 1487 | 2,338 | |
| #26 | Exclude Ties | - | 1478 | 52,866 | |
| #26 | Industry Medicine And Healthcare | - | 1486 | 4,701 | |
| #26 | Overall | - | 1469 | 71,167 | |
| #28 | Math | - | 1466 | 4,343 | |
| #30 | Russian | thinking-32k | 1467 | 3,834 | |
| #31 | Chinese | - | 1501 | 3,655 | |
| #31 | Industry Mathematical | thinking-32k | 1470 | 1,555 | |
| #37 | Chinese | thinking-32k | 1498 | 1,827 | |
| #48 | Korean | thinking-32k | 1402 | 552 |
WebDev
| Rank | Category | Variant | Trend | Elo | Votes |
|---|---|---|---|---|---|
| #15 | Webdev-html | thinking-32k | 1503 | 7,947 | |
| #16 | Webdev | thinking-32k | 1490 | 13,058 | |
| #17 | Overall | thinking-32k | 1490 | 13,059 | |
| #19 | Webdev-react | thinking-32k | 1476 | 5,093 | |
| #20 | Webdev | - | 1467 | 15,297 | |
| #20 | Webdev-html | - | 1474 | 8,384 | |
| #22 | Overall | - | 1466 | 15,305 | |
| #22 | Webdev-react | - | 1459 | 6,896 |