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ModelCap

Claude Opus 5

Current board #22 Arena configurationsAPI only

Anthropic·anthropic/claude-opus-5

Claude Opus 5 is a language model published by Anthropic. 9 OpenRouter endpoints are published in the latest snapshot. It accepts text, image, file input and returns text. The published context limit is 1M tokens. The catalogue declares support for reasoning, tool use, structured outputs.

ModelCap Index · Current board
90.9#2
Measured · 89% support · score interval 90.9–96.7
Market Gravity
65.4
Secondary market signal
Input
$5.00
per 1M tokens
Output
$25.00
per 1M tokens
Context
1M
tokens
Providers
9
endpoints
Gateway spend
25.43%
latest · Vercel share

Providers

Uptime measured over the last 30 minutes
ProviderInputOutputContextQuantUptime
Amazon Bedrockclaude-on-awsCheapest$5.00$25.001M—99.53%
Claude Platform on AWS$5.00$25.001M——
Anthropic$5.00$25.001M—100.0%
Amazon Bedrock$5.00$25.001M—100.0%
Googleglobal$5.00$25.001M—100.0%
Azureglobal$5.00$25.001M——
Amazon Bedrockus-east-1$5.50$27.501M——
Googleeurope$5.50$27.501M——
Googleus$5.50$27.501M——

Reasoning efforts

Best supported result can inform ModelCap

Published Max, X-High, High and other configurations for this model. These are sourced scores, not head-to-head essays.

EffortAgent scoreSource rankSampleSource
Max
Claude Opus 5 (Max)
11.50%
CI 9.8–13.2%
#31.5M obs
15K sessions
LMArena Agent
Match 100%
High
Claude Opus 5 (High)
12.10%
CI 10.7–13.5%
#11.8M obs
19K sessions
LMArena Agent
Match 100%

Related community configurations

Human preference rating
ConfigurationRatingSource rankVotesSource
Max
claude-opus-5-max
1488
CI 1481–1496
#97KArena
Match 100%
High
claude-opus-5-high
1493
CI 1487–1499
#815KArena
Match 100%

Other versions (6)

ModelCap Index · Current board

Methodology
90.9
Measured · 5 public benchmark observations across 5 boards
Current board
#2
Public rank basis
Measured (measured)
Index support
88.8% · strong
Index interval
90.9–96.7
Rank posterior
Not available
Top 5 / Top 10 probability
Not available / Not available
Posterior as of
Snapshot timestamp unavailable
Identity binding
Exact catalogue product · anthropic/anthropic/claude-opus-5 · aggregates disclosed benchmark configurations · endpoint configuration not claimed
Direct benchmark observations
5
Breadth-adjusted BES point estimate
93.8
Bayesian Evidence Score · measured evidence input only

BES normalizes admitted public benchmark evidence for measured Index rows. Its legacy score and observables prior do not define the public language rank.

Observed capability
93.8
Evidence status
confirmed · 97% mass
General preference
93.9
Coding
93.6
Agents & tools
91.5
Reasoning
93.6
Evidence breadth
100%
Evidence coverage
89%
Market and catalogue signals · secondary, never the language Index rank
Usage (OpenRouter popularity)
53.7
Liquidity (providers × uptime)
94.5
Open reach (HF downloads)
—
Surface (context / tools / modalities)
100.0
Freshness
94.8
  • · OpenRouter popularity #14
  • · 5 live providers
  • · Catalogue: context 1000000, reasoning, tools, modalities Text/Image/File
  • · First seen 2026-07-24

These adoption and deployment observations remain context only. They do not change this model's ModelCap Index score or rank.

BES evidence selected · measured input only

The bounded 0–100 capability score blends each source’s competitive placement with its published achievement, then combines capability families. Evidence breadth adds a modest uncertainty adjustment; price and popularity are not part of benchmark-led rank.

Deployment readiness

Metadata index
53.8
partial · 56% metadata coverage
Not capability
Artifact reproducibility
0.0
Access & legal clarity
30.3
Deployability
100.0
Evaluation provenance
88.8

Missing: artifactReproducibility.revision-sha, artifactReproducibility.architecture-and-model-type, artifactReproducibility.parameter-count, artifactReproducibility.serialized-weight-format, artifactReproducibility.base-lineage, accessLegalClarity.declared-license, accessLegalClarity.resolvable-license-terms, evaluationProvenance.evaluation-dataset-revisions.

A metadata completeness and deployability index—not a safety certification, quality grade, or production-readiness claim.

Market activity

Venue coverage
Market Gravity
65.4
OpenRouter weekly popularity
#14 of 298
Vercel token share · 7d
8.48%
Vercel request share · 7d
2.50%
Venue data through
2026-08-07

Market Gravity uses OpenRouter’s full-catalogue popularity order. Sparse Vercel top-ten observations appear only when published and do not affect the score.

Arena preference

Configuration results available

Arena has published current community results for Max and High. No default-configuration result is published, so the raw Arena field stays configuration-specific. The strongest supported result can still inform ModelCap Score with reduced confidence.

Current board through 6 Aug 2026, 13:00 UTC

Market Gravity breakdown

Usage55%
53.7

OpenRouter weekly popularity across the full model catalogue.

Liquidity25%
94.5

Independent providers versus the model's open or closed cohort, weighted by uptime.

Open reach15%
50.0

Hugging Face 30-day downloads for open models; neutral for closed models.

Freshness5%
94.8

Time since first public availability, on a six-month half-life.

Specification

Context window
1M tokens
Max output
128K tokens
Inputs
Text, Image, File
Outputs
Text
Tokenizer
Claude
Cached input tokens
$0.50 / 1M
First seen on OpenRouter
24 Jul 2026

Capabilities

  • Supported: Reasoning
  • Supported: Tool use
  • Supported: Structured output
  • Supported: Response format
  • Supported: Moderated