How does Claude Opus 4 rank among AI models?
Claude Opus 4 is a superseded version and is not on the current board as of 22 September 2026. Its archive position, where one exists, is shown on the page; the newer version carries the current rank.
Anthropic·anthropic/claude-opus-4
Claude Opus 4 is ModelCap archive rank #95 (Measured), from the ModelCap Index as of 22 Sept 2026, 02:49 UTC.
Claude Opus 4 has a published context limit of 200K tokens in the ModelCap catalogue as of 22 Sept 2026, 02:49 UTC.
Claude Opus 4 weight access is api only, from ModelCap classification of published repository metadata as of 22 Sept 2026, 02:49 UTC.
Snapshot facts · download the public dataset · methodology
ModelCap Index · All-versions archive
63.8#95
Measured · 65% support · score interval 59.0–68.6
Evidence as of 21 Sept 2026, 17:21 UTC
Superseded by Claude Opus 5. It no longer holds a current-board position; its all-versions archive rank is #95.
Input
Unlisted
no listed API price
Output
Unlisted
no listed API price
Context
200K
tokens
Providers
0
endpoints
Gateway spend
—
latest · Vercel share
Providers
Uptime measured over the last 30 minutesNo provider is currently serving this model.
Reasoning efforts
Best supported result can inform ModelCapPublished Max, X-High, High and other configurations for this model. These are sourced scores, not head-to-head essays.
Related community configurations
Human preference ratingOther versions (6)
ModelCap Index · All-versions archive
Methodology63.8
Measured · 3 public benchmark observations across 3 boards
All-versions archive
#95
- Public rank basis
- Measured (measured)
- Index support
- 64.6% · strong
- Index interval
- 59.0–68.6
- Rank posterior
- Not available
- Top 5 / Top 10 probability
- Not available / Not available
- Posterior as of
- Snapshot timestamp unavailable
- Evidence as of
- 21 Sept 2026, 17:21 UTC
- Identity binding
- Exact catalogue product · anthropic/anthropic/claude-opus-4 · aggregates disclosed benchmark configurations · endpoint configuration not claimed
- Index observations used
- 3
- Qualified Index evidence point
- 63.8
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
- 63.8
- Evidence status
- confirmed · 87% mass
- General preference
- 63.7
- Coding
- 70.6
- Agents & tools
- —
- Reasoning
- 32.7
- Evidence breadth
- 95%
- Evidence coverage
- 65%
Market and catalogue signals · secondary, never the language Index rank
- Usage (OpenRouter popularity)
- —
- Liquidity (providers × uptime)
- —
- Open reach (HF downloads)
- —
- Surface (context / tools / modalities)
- 88.3
- Freshness
- 15.6
- · Catalogue: context 200000, reasoning, tools, modalities Image/Text/File
- · First seen 2025-05-22
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
- Arena Overall · Thinking · 16K63.7
- Arena Coding · Thinking · 16K70.6
- ARC-AGI-2 Verified · Thinking32.7
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 index30.0
limited · 37% metadata coverage
- Artifact reproducibility
- 0.0
- Access & legal clarity
- 30.3
- Deployability
- 29.0
- Evaluation provenance
- 76.4
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, deployability.independent-provider-records, deployability.measured-provider-uptime, deployability.published-provider-pricing, 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
- 8.3
- OpenRouter weekly popularity
- Not listed
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
- Status
- Ranked
- Source
- LMArena
- Official rank
- #132 of 402
- Rating
- 1413.9
- 95% confidence interval
- 1410–1418
- Votes
- 43K
- Source published at
- 13 Sept 2026, 00:00 UTC
- Category
- overall
- Identity match confidence
- 99%
Market Gravity breakdown
- Usage55%
- 0.0
- Liquidity25%
- 0.0
- Open reach15%
- 50.0
- Freshness5%
- 15.6
OpenRouter weekly popularity across the full model catalogue.
Independent providers versus the model's open or closed cohort, weighted by uptime.
Hugging Face 30-day downloads for open models; neutral for closed models.
Time since first public availability, on a six-month half-life.
Specification
- Context window
- 200K tokens
- Max output
- 32K tokens
- Inputs
- Image, Text, File
- Outputs
- Text
- Tokenizer
- Claude
- Cached input tokens
- $1.50 / 1M
- First seen on OpenRouter
- 22 May 2025
- Knowledge cutoff
- 2025-01-31
Capabilities
- Supported: Reasoning
- Supported: Tool use
- Not supported: Structured output
- Not supported: Response format
- Not supported: Moderated
Benchmark leaderboards featuring Claude Opus 4
All leaderboardsClaude Opus 4: common questions
How much does Claude Opus 4 cost per 1M tokens?
No live API price is listed for Claude Opus 4 in the current snapshot as of 22 September 2026 because no serving endpoint is published. ModelCap shows a price only when a provider currently lists one.
What is the context window of Claude Opus 4?
Claude Opus 4 has a published context window of 200K tokens (200,000) and a maximum output of 32K tokens. Individual providers can serve less than the published maximum; the providers table lists each endpoint's own limit.
Is Claude Opus 4 open-weight?
API only. No downloadable model weights are linked in the current source data; access is through a hosted API or product.
Which benchmarks has Claude Opus 4 been evaluated on?
Claude Opus 4 has published results on 2 public boards tracked by ModelCap as of 22 September 2026: Arena coding 1498 (#70 of 397) and ARC-AGI-2 8.6% (#114 of 214). Each board page ranks every tracked model on that benchmark; the ModelCap Index combines them with published uncertainty.
When was Claude Opus 4 released?
Claude Opus 4 first appeared in the catalogue on 22 May 2025, with a published knowledge cutoff of 2025-01-31. It has since been superseded by Claude Opus 5. Rank and price movements since then are recorded on the site's changes feed.