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Anthropic: Claude Opus 4.5

Flagship Claude model for deep reasoning, coding, and long-horizon agents

Source-linked claude-opus Closed weights Released 2025-11-01
API record Report
InputT
OutputT
Input price$5/M
Output price$25/M
Context200K
Max output64K
Providers17
Inference availability

Providers

Provider-specific identifiers, limits, and listed prices per million tokens. Every row links back to the provider's own documentation.

Report a price
Providers offering Claude Opus 4.5
ProviderProvider model IDContextMax outputInputOutputCache readCapabilitiesDocs
QiHang claude-opus-4-5-20251101 200K 32K $0.71 $3.57 — ReasoningTools Docs ↗
Vertex claude-opus-4-5@20251101 200K 64K $5 $25 $0.5 ReasoningTools Docs ↗
DigitalOcean anthropic-claude-opus-4.5 200K 64K $5 $25 $0.5 ReasoningTools Docs ↗
Merge Gateway anthropic/claude-opus-4-5-20251101 200K 64K $5 $25 $0.5 ReasoningToolsJSON Docs ↗
DevPass (LLM Gateway) claude-opus-4-5-20251101 200K 64K $5 $25 $0.5 ReasoningTools Docs ↗
Azure Cognitive Services claude-opus-4-5 200K 64K $5 $25 $0.5 ReasoningTools Docs ↗
Eden AI anthropic/claude-opus-4-5-20251101 200K 64K $5 $25 $0.5 ReasoningToolsJSON Docs ↗
Vertex (Anthropic) claude-opus-4-5@20251101 200K 64K $5 $25 $0.5 ReasoningTools Docs ↗
Vercel AI Gateway anthropic/claude-opus-4.5 200K 64K $5 $25 $0.5 ReasoningTools Docs ↗
Azure claude-opus-4-5 200K 64K $5 $25 $0.5 ReasoningTools Docs ↗
Abacus claude-opus-4-5-20251101 200K 64K $5 $25 — ReasoningTools Docs ↗
OpenCode Zen claude-opus-4-5 200K 64K $5 $25 $0.5 ReasoningTools Docs ↗
Amazon Bedrock anthropic.claude-opus-4-5-20251101-v1:0 200K 64K $5 $25 $0.5 ReasoningToolsJSON Docs ↗
Anthropic claude-opus-4-5-20251101 200K 64K $5 $25 $0.5 ReasoningToolsJSON Docs ↗
LLM Gateway anthropic/claude-opus-4-5-20251101 200K 32K $5 $25 $0.5 ReasoningToolsJSON Docs ↗
Cortecs claude-opus4-5 200K 200K $5.98 $29.89 — ReasoningTools Docs ↗
Venice AI claude-opus-4-5 198K 32.768K $6 $30 $0.6 ReasoningToolsJSON Docs ↗

Capability badges appear only where the provider catalog explicitly lists support. A blank cell means the source is silent, not that the feature is absent.

Listed rates

Price across providers

Input price per million tokens as published by each provider. Bars are drawn from listed rates only — no traffic weighting, since the catalog observes no requests.

Lowest input $0.71/M

Across 17 priced providers

Median input $5/M

Midpoint of listed rates

Highest input $6/M

8.5× the lowest listed rate

Output range $3.57 – $30

Per million output tokens

QiHang $0.71/MLowest
Vertex $5/M
DigitalOcean $5/M
Merge Gateway $5/M
DevPass (LLM Gateway) $5/M
Azure Cognitive Services $5/M
Eden AI $5/M
Vertex (Anthropic) $5/M
Vercel AI Gateway $5/M
Azure $5/M
Abacus $5/M
OpenCode Zen $5/M
Amazon Bedrock $5/M
Anthropic $5/M
LLM Gateway $5/M
Cortecs $5.98/M
Venice AI $6/M
Cost calculator

Estimate a workload

$0.00
Excludes taxes, non-token charges, and tiered discounts.

Context limits also differ by provider, from 198K to 200K tokens. Compare the provider table above before choosing on price alone.

Specification

Capabilities

Recorded from the source catalog and provider listings.

✓ Reasoning Yes
✓ Tool calling Yes
✓ Structured output Yes
✓ Attachments Yes
✓ Vision input Yes
× Open weights No
Creator
Anthropic
Model family
claude-opus
Knowledge cutoff
2025-05
License
Not documented
Release date
2025-11-01
Model ID
anthropic/claude-opus-4-5-20251101
Published evaluations

Benchmarks

Every result stays attached to its source, version, metric and harness. Scores from different versions are never merged, and the profile below plots each benchmark against its own population rather than on a shared scale.

Benchmark registry
SWE-Bench Pro resolve rate Source ↗
SWE-Bench Pro #25 of 38

Each strip shows every published score for that benchmark, with this model marked. The lighter shape behind the ticks is the density of results, and the dashed line is the median.

Cost against capability

Price and performance

Listed input price plotted against SWE-Bench Pro, the benchmark with the widest published coverage that this model appears in.

0 43 85 $1 $10 Qwen3 235B-A22B — $0.7/M, score 21.41 Qwen3-Coder 480B-A35B Instruct — $1.5/M, score 38.7 Qwen3.7 Max — $2.5/M, score 60.6 Claude Fable 5 — $10/M, score 80.3 Claude Haiku 4.5 (latest) — $1/M, score 39.45 Claude Opus 4.5 — $5/M, score 45.89 Claude Opus 4.6 — $5/M, score 51.9 Claude Opus 4.7 — $5/M, score 64.3 Claude Opus 4.8 — $5/M, score 69.2 Claude Opus 5 — $5/M, score 79.2 Claude Sonnet 4 (latest) — $2.898/M, score 42.7 Claude Sonnet 4.5 (latest) — $3/M, score 43.6 Claude Sonnet 5 — $2/M, score 63.2 Gemini 3 Flash Preview — $0.5/M, score 34.63 Gemini 3 Pro Preview — $0.57/M, score 43.3 Gemini 3.1 Pro Preview — $2/M, score 54.2 Gemini 3.5 Flash — $1.5/M, score 55.1 Gemini 3.5 Flash Lite — $0.3/M, score 54.2 LongCat-2.0 — $0.3/M, score 59.5 Llama 4 Maverick 17B Instruct — $0.14/M, score 5.24 Muse Glimmer 30B — $0.2/M, score 51.2 Muse Spark 1.1 — $1.25/M, score 61.5 MiniMax-M2.1 — $0.3/M, score 36.81 GPT-5 — $1.25/M, score 41.78 GPT-5.2 — $1.75/M, score 29.94 GPT-5.2 Codex — $0.14/M, score 41.04 GPT-5.4 — $2.5/M, score 59.1 GPT-5.4 mini — $0.75/M, score 54.4 GPT-5.4 nano — $0.2/M, score 52.4 GPT-5.5 — $5/M, score 58.6 GPT-5.6 Luna — $0.2/M, score 62.7 GPT-5.6 Sol — $4/M, score 64.6 GPT-5.6 Terra — $2/M, score 63.4 Step 3.7 Flash — $0.185/M, score 56.3 Grok 4.5 — $2/M, score 64.7 MiMo-V2.5-Pro — $0.435/M, score 57.2 GLM-4.6 — $0.6/M, score 9.67 GLM-5.2 — $1.4/M, score 62.1 Claude Opus 4.5 Input price per million tokens (log scale) Resolve rate

The stepped line is the efficient frontier: at each price, the best score available for that money or less. A model sitting on it is not being beaten by anything cheaper. Price is log-scaled because listed rates span four orders of magnitude. Only models with both a listed price and a score on this benchmark can appear.

Catalog activity

Change log

Field-level changes detected between successful source imports.

Full change log
Price Completion3.57 → 25.0
Price Prompt0.71 → 5.0
Provenance

Sources & verification

Every figure on this page traces back to one of these records.

Methodology
Last verified
Sep 11, 2026
Status
Source-linked
Confidence
Medium
Catalog source
Models.dev
Models.devcatalog ↗QiHang documentationprovider documentation ↗Vertex documentationprovider documentation ↗DigitalOcean documentationprovider documentation ↗Merge Gateway documentationprovider documentation ↗LLM Gateway documentationprovider documentation ↗Azure documentationprovider documentation ↗Eden AI documentationprovider documentation ↗Vertex (Anthropic) documentationprovider documentation ↗Vercel AI Gateway documentationprovider documentation ↗Abacus documentationprovider documentation ↗OpenCode Zen documentationprovider documentation ↗
Public API

Use this record

Fetch the complete source-linked model record. No key, no account, no rate-limited tier.

API documentation
Endpoint
GET https://model.kyssta.lol/api/v1/models/anthropic/claude-opus-4-5-20251101
curl
curl "https://model.kyssta.lol/api/v1/models/anthropic/claude-opus-4-5-20251101"
Common questions

Frequently asked questions

Answered directly from the stored record — nothing here is generated beyond the catalog's own fields.

What is Claude Opus 4.5?

Flagship Claude model for deep reasoning, coding, and long-horizon agents. It is published by Anthropic and catalogued here from Models.dev.

How much does Claude Opus 4.5 cost?

Listed input pricing starts at $0.71 per million tokens from QiHang, rising to $6 across 17 listed providers.

What is the context length of Claude Opus 4.5?

Claude Opus 4.5 accepts up to 200K tokens of context and returns up to 64K output tokens.

Does Claude Opus 4.5 support tool calling and structured output?

Provider catalogs list support for tool calling, structured output, reasoning, and image input.

Which providers serve Claude Opus 4.5?

17 providers list this model: QiHang, Vertex, DigitalOcean, Merge Gateway, DevPass (LLM Gateway), Azure Cognitive Services and 11 more.

Are the weights for Claude Opus 4.5 open?

No. This model is served through hosted APIs only.

When was Claude Opus 4.5 released?

The catalog records a release date of 2025-11-01, last verified Sep 11, 2026.

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