Claude Opus 5.5

AnthropicKey claude-opus-5-5Also reported as anthropic/claude-opus-5-5, router_client:claude/claude-opus-5-5, claude/claude-opus-5-5, kiro/claude-opus-5-5, cc/claude-opus-5-5, sub2api-claude/claude-opus-5-5, teamclaude/claude-opus-5-5, kt.kim/claude-opus-5-5, devin/claude-opus-5-5, s6o/claude-opus-5-5, auto/claude-opus-5-5, workbuddy/claude-opus-5-5, magpie/factory/claude-opus-5-5, router_client:unknown/claude-opus-5-5, kr/claude-opus-5-5, ccs-github/claude-opus-5-5, mm0e-com/auto/claude-opus-5-5, claude-opus-5.5, cursor/claude-opus-5-5, api/claude-opus-5-5

Rank
#1
by active users
Active users
713
Down 59 from 772 active users in the previous 30 days. vs previous 30 days
Adoption
74%
of 961 accounts
Tokens
12.3T
cache included
Est. cost
$4.8M
at public list prices
First seen
Aug 26, 2026
in any submission

Oct 14 – Nov 12, 2026 (UTC)961 accounts100% of tokens from an identified modelData through Nov 12, 2026, 05:29 UTCHow we count

Daily active users

Distinct accounts that used this model on each UTC day.

79 active users on Nov 12, 2026

Daily active users for Claude Opus 5.5, Oct 14, 2026 to Nov 12, 2026. Peak 518. Use the left and right arrow keys to read each day.6003000
Show daily values
Daily active users and tokens for Claude Opus 5.5
Date (UTC)Active usersTokens
Oct 14, 2026518555.8B
Oct 15, 2026501528.2B
Oct 16, 2026484514B
Oct 17, 2026410413.9B
Oct 18, 2026393438.2B
Oct 19, 2026488508.2B
Oct 20, 2026489529.6B
Oct 21, 2026501548.6B
Oct 22, 2026497556.9B
Oct 23, 2026481518.1B
Oct 24, 2026395403.5B
Oct 25, 2026393377.1B
Oct 26, 2026466458.4B
Oct 27, 2026474461.2B
Oct 28, 2026474503.4B
Oct 29, 2026470481.8B
Oct 30, 2026445457.5B
Oct 31, 2026355363.6B
Nov 1, 2026345336.3B
Nov 2, 2026418392.6B
Nov 3, 2026424407B
Nov 4, 2026412422.3B
Nov 5, 2026400416.5B
Nov 6, 2026372331.3B
Nov 7, 2026297303.6B
Nov 8, 2026285286.2B
Nov 9, 2026326291.4B
Nov 10, 2026288255.7B
Nov 11, 2026226183.9B
Nov 12, 20267934.5B

Token mix

How the 12.3T tokens split. Cache reads are usually most of an agent's tokens and are priced far below input.

  • Input0.4%
  • Output0.3%
  • Cache read97%
  • Cache write2.4%
  • Reasoning<0.1%

Agents that carry Claude Opus 5.5

Each agent's share of this model's tokens, and how many accounts used the model through it.

  1. Claude Code81% of this model's tokens658active users
  2. Senpi (OmO Native)7.9% of this model's tokens51active users
  3. Oh My Pi4.3% of this model's tokens49active users
  4. Pi2.7% of this model's tokens34active users
  5. OpenCode2.4% of this model's tokens35active users
  6. Junie0.6% of this model's tokens2active users
  7. Aside0.3% of this model's tokens23active users
  8. Hermes Agent0.2% of this model's tokens20active users
  9. Synthetic0.1% of this model's tokens1active users
  10. Gajae Code0.1% of this model's tokens7active users
  11. Prime Agent0.1% of this model's tokens1active users
  12. Codex CLI<0.1% of this model's tokens14active users
  13. Reasonix<0.1% of this model's tokens2active users
  14. Droid<0.1% of this model's tokens8active users
  15. OpenClaw<0.1% of this model's tokens4active users
  16. DeepSeek Harness<0.1% of this model's tokens8active users
  17. Antigravity CLI<0.1% of this model's tokens31active users
  18. Copilot<0.1% of this model's tokens3active users
  19. ZCode<0.1% of this model's tokens2active users
  20. Antigravity<0.1% of this model's tokens10active users
  21. Kiro<0.1% of this model's tokens5active users
  22. Antigravity IDE Extension<0.1% of this model's tokens13active users
  23. Goose<0.1% of this model's tokens1active users
  24. Amp<0.1% of this model's tokens2active users

Benchmarks

The best result for Claude Opus 5.5 in each benchmark Tokscale tracks. Each benchmark has its own unit, run conditions and source, so compare a score only with other models on the same benchmark. Rank is among the models Tokscale matched in that benchmark. Agent rows also show Tokscale usage through that agent, side by side with the score. Usage does not explain the score.

All benchmarks
  • Epoch Capabilities IndexOverall · Epoch AI
    168.5
    Rank #4 of 158 matched modelsNo conditions reportedModel released Sep 22, 2026Source: epoch.ai (opens in a new tab)
  • Terminal-Bench 4.0Agentic coding · Terminal-Bench
    64.8%
    Rank #1 of 23 matched modelsMax · Claude CodePublished Oct 6, 2026Source: tbench.ai (opens in a new tab)

    Tokscale usage: Claude Code carried 81% of Claude Opus 5.5 tokens in the last 30 days (658 active users).

  • CursorBenchAgentic coding · Cursor, collected by Epoch AI
    57.8%
    Rank #3 of 21 matched modelsMaxModel released Sep 22, 2026Source: cursor.com (opens in a new tab)
    Show 4 more results with other run conditionsHide the other results
    • Listed as Opus 5.5 High
      56.0%
      HighModel released Sep 22, 2026Source: cursor.com (opens in a new tab)
    • Listed as Opus 5.5 Extra High
      56.0%
      XHighModel released Sep 22, 2026Source: cursor.com (opens in a new tab)
    • Listed as Opus 5.5 Medium
      52.5%
      MediumModel released Sep 22, 2026Source: cursor.com (opens in a new tab)
    • Listed as Opus 5.5 Low
      43.7%
      LowModel released Sep 22, 2026Source: cursor.com (opens in a new tab)
  • FrontierSWEAgentic coding · FrontierSWE, collected by Epoch AI
    62.3%
    Rank #3 of 23 matched modelsMax · proximusModel released Sep 22, 2026Source: frontierswe.com (opens in a new tab)
  • WebDev ArenaWeb development · LMArena
    1,807
    Rank #1 of 110 matched modelsMaxPublished Oct 19, 2026Source: huggingface.co (opens in a new tab)
  • Agent ArenaAgents · LMArena
    +0.20
    Rank #1 of 48 matched modelsMax · Arena Agent ModePublished Oct 19, 2026Source: huggingface.co (opens in a new tab)
  • GPQA DiamondReasoning · Epoch AI
    90.6%
    Rank #41 of 160 matched modelsMaxRun date Sep 22, 2026Source: epoch.ai (opens in a new tab)

    Near its ceiling: the top score is 96.5%, and Epoch AI estimates the reachable maximum at 97%. Differences between top models are small.

  • FrontierMath Tiers 1–3 (v2)Reasoning · Epoch AI
    91.2%
    Rank #4 of 90 matched modelsMaxRun date Sep 22, 2026Source: epoch.ai (opens in a new tab)

    Near its ceiling: the top score is 95.1%, and Epoch AI estimates the reachable maximum at 95%. Differences between top models are small.

  • SimpleQA VerifiedKnowledge · Epoch AI
    72.2%
    Rank #7 of 86 matched modelsMaxRun date Sep 22, 2026Source: epoch.ai (opens in a new tab)

Not evaluated: Humanity's Last Exam, DeepSWE. A missing result is not a score of zero.

Pricing

List prices from models.dev in US dollars per 1M tokens, retrieved Nov 12, 2026. Anthropic is the lab's own API and the reference price for the estimates below.

Price at real agent usageEstimate at list prices

What 1M tokens cost at the reference list price when they split into input, output and cache the way Tokscale users' agents used them. It is not what anyone paid.

At this model's mix
$0.39
Est. per 1M tokens
97% cache reads
At the community mix
$0.42
Est. per 1M tokens
96% cache reads
3:1 input/output blend
$8
Per 1M tokens at list prices
No cache

Cache reads were 97% of Claude Opus 5.5 tokens in the last 30 days and 96% of all tokens. The 3:1 blend, (3 × input + output) ÷ 4, is the usual comparison and ignores cache.

Assumptions

  • Anthropic list prices per 1M tokens: input $4, output $20, cache read $0.20, cache write $5.
  • This model's mix is its own input, output, cache and reasoning tokens in the last 30 days.
  • The community mix is the tokens of every identified model in the last 30 days.
  • This is an estimate at list prices, not what anyone paid.
  • Reasoning tokens are priced as output.
  • Long-context tiers, batch pricing and discounts are not applied.
  • Token mixes come from public Tokscale submissions. Hidden accounts are excluded.

List prices by provider

  • AnthropicReferenceclaude-opus-5-5
    $4 input per 1M tokens$20 output per 1M tokens$0.20 cache read per 1M tokens$5 cache write per 1M tokens1M tokens of context
  • Amazon Bedrockanthropic.claude-opus-5-5
    $4 input per 1M tokens$20 output per 1M tokens$0.20 cache read per 1M tokens$5 cache write per 1M tokens1M tokens of context
  • Vertexclaude-opus-5-5@default
    $4 input per 1M tokens$20 output per 1M tokens$0.20 cache read per 1M tokens$5 cache write per 1M tokens1M tokens of context
  • Vertex (Anthropic)claude-opus-5-5@default
    $4 input per 1M tokens$20 output per 1M tokens$0.20 cache read per 1M tokens$5 cache write per 1M tokens1M tokens of context
Show 3 more providersShow fewer providers
  • Azureclaude-opus-5-5
    $4 input per 1M tokens$20 output per 1M tokens$0.20 cache read per 1M tokens$5 cache write per 1M tokens1M tokens of context
  • OpenRouteranthropic/claude-opus-5.5
    $4 input per 1M tokens$20 output per 1M tokens$0.20 cache read per 1M tokens$5 cache write per 1M tokens1M tokens of context
  • Vercel AI Gatewayanthropic/claude-opus-5.5
    $4 input per 1M tokens$20 output per 1M tokens$0.20 cache read per 1M tokens$5 cache write per 1M tokens1M tokens of context

Specs

From models.dev (MIT), retrieved Nov 12, 2026, as the lab or the first listed provider reports them. A dash means models.dev does not list the value.

Context window
1M tokens
Max output
128K tokens
Input
Text, Image, PDF
Output
Text
Knowledge cutoff
Jun 2026
Release date
Sep 22, 2026
Open weights
No
Reasoning
Yes
Tool calling
Yes

Top public profiles

Public profiles that used Claude Opus 5.5 most in this period, by tokens. Hidden accounts are never listed.

  1. 1YeonGyu-Kim@code-yeongyu651.3Btokens$341.8Kest. cost27active days$341.8K est. cost · 27 active days
  2. 2Jeff Emanuel@Dicklesworthstone448.3Btokens$137.6Kest. cost17active days$137.6K est. cost · 17 active days
  3. 3ualtinok@ualtinok340.4Btokens$95.4Kest. cost30active days$95.4K est. cost · 30 active days
  4. 4Max Ghenis@MaxGhenis279.8Btokens$123.7Kest. cost29active days$123.7K est. cost · 29 active days
  5. 5Øystein Krog@oysteinkrog234.5Btokens$86.3Kest. cost29active days$86.3K est. cost · 29 active days
  6. 6Sunghyun Cho@anaclumos234.2Btokens$95.6Kest. cost25active days$95.6K est. cost · 25 active days
  7. 7Soju06@Soju06224.9Btokens$152.6Kest. cost28active days$152.6K est. cost · 28 active days
  8. 8Abhishek gahlot@abhishekgahlot2224.4Btokens$81.1Kest. cost26active days$81.1K est. cost · 26 active days
  9. 9Minsub Kim@gazzua194Btokens$72.1Kest. cost25active days$72.1K est. cost · 25 active days
  10. 10LJM@lee98www188.5Btokens$46.8Kest. cost30active days$46.8K est. cost · 30 active days

More from Anthropic

Other Anthropic models in the same period, by active users.

  1. Claude Sonnet 5.558% adoption557active users
  2. Claude Haiku 5.550% adoption479active users
  3. Claude Fable 5.138% adoption362active users
  4. Claude Opus 4.823% adoption222active users
  5. Claude Fable 5.219% adoption187active users
  6. Claude Opus 517% adoption164active users
All models

Sources and attribution

Each score keeps its own source, unit and run conditions. Tokscale does not combine benchmarks into one score, and a missing score means the model was not evaluated, not that it scored zero.

  • Epoch AIEpoch Capabilities Index, Epoch's own runs and the external results it collects.CC BY 4.0 · Retrieved Nov 12, 2026 · Data through Nov 9, 2026Epoch AI, ‘Capabilities & benchmarking’. Published online at epoch.ai. Retrieved from https://epoch.ai/benchmarks.
  • LMArenaWebDev Arena and Agent Arena leaderboards.CC BY 4.0 · Retrieved Oct 21, 2026 · Data through Oct 19, 2026LMArena leaderboard dataset (lmarena-ai/leaderboard-dataset), Hugging Face.
  • Terminal-BenchTerminal-Bench 4.0 official leaderboard rows (results only, no task content).Terms not stated · Retrieved Oct 21, 2026 · Data through Oct 6, 2026Terminal-Bench 4.0 leaderboard, tbench.ai. Every score links back to the leaderboard.
  • models.devSpecs and list prices per provider.MIT · Retrieved Nov 12, 2026models.dev, an open catalog of AI models (github.com/anomalyco/models.dev).
  • TokscaleActive users, tokens and token mix from public Tokscale submissions. Hidden accounts are excluded.How we count