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Claude Opus 4.6

API ID claude-opus-4-6

claude-opus-4-6 is an Anthropic model, released February 2026. It has a 1,000,000-token context window and up to 128,000 output tokens. It takes image input and supports reasoning. Standard price: $5.00 input and $25.00 output per 1M tokens.

Status
Active
Released
February 2026
Shutdown
not before Feb 5, 2027
Replacement
—

claude-opus-4-6 is active. Anthropic says it won't be retired before February 5, 2027.

Benchmarks

Scores as each source published them
or

Comparing with Claude Opus 4.5, the previous model in this line. A score is compared only with the same benchmark from the same source, at the same setting where both have it. Full comparison: prices, limits, features

Arena

ArenaClaude Opus 4.6Claude Opus 4.5ChangeRankDateSource
Text
Other settings
  • 1498 ±3 vs 1470 ±3
By category
  • Math 1517 rank 6 vs 1472 (+45) at high effort (vs high effort 32k)
  • Creative writing 1500 rank 4 vs 1469 (+31) at high effort (vs high effort 32k)
  • Instruction following 1512 rank 3 vs 1484 (+28) at high effort (vs high effort 32k)
  • Hard prompts 1532 rank 4 vs 1501 (+31) at high effort (vs high effort 32k)
  • Long prompts 1522 rank 2 vs 1495 (+27) at high effort (vs high effort 32k)
  • Multi-turn 1517 rank 4 vs 1486 (+31) at high effort (vs high effort 32k)
  • Expert 1546 rank 2 vs 1503 (+43) at high effort (vs high effort 32k)
1503 ±31474 ±4+295 of 415
80,827 votes		Oct 13, 2026source
Text: Coding
Other settings
  • 1548 ±5 vs 1523 ±5
1548 ±51531 ±7+175 of 410
20,969 votes		Oct 13, 2026source
WebDev
Other settings
  • 1537 ±5 vs 1469 ±7
1546 ±51493 ±8+5341 of 142
19,443 votes		Oct 13, 2026source
Vision
Other settings
  • 1294 ±6 vs not rated
1299 ±6not rated3 of 165
22,304 votes		Oct 9, 2026source
Search1222 ±51187 ±6+359 of 42
173,191 votes		Oct 13, 2026source
Document
Other settings
  • 1494 ±6 vs 1465 ±10
1495 ±71465 ±10+302 of 44
27,929 votes		Sep 13, 2026source

Rated as claude-opus-4-6-high (high effort); Claude Opus 4.5 as claude-opus-4-5-20251101-high-32k (high effort 32k). Some were rated at different settings; ratings on one arena share one scale, so the difference still reads directly. Ratings come from people voting between two anonymous answers; Text, Vision, Search and Document are style-controlled, as on arena.ai. Data: Arena (arena.ai), CC BY 4.0.

Epoch AI

BenchmarkClaude Opus 4.6Claude Opus 4.5ChangeSettingRunSource
FrontierMath Tier 426.8%4.9%+21.9 ptsmax effort (vs 32k)Jun 11, 2026source
FrontierMath Tiers 1-366.0%34.4%+31.6 ptsmax effort (vs 32k)Jun 11, 2026source
GPQA Diamond
Other settings
  • 88.8% vs not run 64k
  • 88.4% vs not run max effort
90.5%86.0%+4.5 pts32kFeb 6, 2026source
OTIS Mock AIME 2024-2025
Other settings
  • 93.1% vs 86.1% 32k
  • 91.1% vs not run max effort
94.4%86.1%+8.3 pts64k (vs 32k)Feb 6, 2026source
SimpleQA Verified47.0%45.7%+1.3 ptsmax effort (vs 32k)Aug 27, 2026source
SWE-bench Verified78.7%76.7%+2.0 ptsFeb 18, 2026source

Run independently by Epoch AI. Data: Epoch AI, Capabilities & benchmarking (epoch.ai/benchmarks), CC BY.

On cloud platforms

All platform dates
PlatformPlatform IDStateShutdownTime leftReplacementSource
Amazon Bedrockanthropic.claude-opus-4-6-v1Activenot before Feb 5, 2027—source
Microsoft Foundryversion 1claude-opus-4-6ActiveFeb 2, 2027110 days—source

Read daily from each platform's own pages. The shutdown date and countdown on this page use Anthropic's own date. Time left counts to 00:00 UTC on the shutdown date, which is the evening before in ET.

Features

Compare models
FeatureValueSinceSource
Prompt cachingA prompt prefix you send again and again (system prompt, documents, tools) is cached, so later requests cost less and start faster.Supportedin place when tracking began (October 6, 2026)source
Batch APISend many requests as one job that runs in the background, usually finished within 24 hours, at a lower price than live requests.Supportedin place when tracking began (October 6, 2026)source
Image inputImages such as screenshots, photos and charts can go in the prompt for the model to read.Supportedin place when tracking began (October 6, 2026)source
Reasoning / thinkingThe model can work through a problem step by step before it answers: usually better answers to hard questions, at the cost of more tokens and time.Supported (thinking: adaptive, extended deprecated; default effort: high)in place when tracking began (October 6, 2026)source
Context windowThe most the model can work with in one request, in tokens: your prompt, conversation history and files. A token is about three-quarters of an English word.1,000,000 tokensin place when tracking began (October 6, 2026)source
Max output tokensThe longest reply the model can write in one response, in tokens. A token is about three-quarters of an English word.128,000 tokensin place when tracking began (October 6, 2026)source

Not published by Anthropic: Structured outputs, Function calling, PDF input, Fine-tuning, Built-in web search, temperature parameter, top_p parameter, logprobs.

Price history

USD per 1M tokens, standard tier
$0.00$10.00$20.00$30.00Oct 2026In $5.00Out $25.00Oct 1, 2026 to Oct 15, 2026: Input $5.00, Output $25.00
$0.00$10.00$20.00$30.00Oct 2026In $5.00Out $25.00Oct 1, 2026 to Oct 15, 2026: Input $5.00, Output $25.00

We started recording this model's prices on Oct 1, 2026. The history grows with each daily check.

Show as a table
FromTypePrice
Oct 1, 2026Input$5.00
Oct 1, 2026Output$25.00

Prices

USD per 1M tokens, every type and band, by tier
TypePrice $/1MIn effect
Standard
input$5.00
cached input$0.50
cache write (5 min)$6.25
cache write (1 hour)$10.00
output$25.00
Batch
input$2.50
output$12.50

Changelog

Changes we detected on Anthropic's pages

No changes recorded yet.

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Last checked · Sources: Anthropic models, Anthropic deprecations, Anthropic pricing, Anthropic model pages