Claude Opus 4.5

Released
2025-11-01
Last refreshed
2026-07-26
Status
Researched 134d ago
ProprietaryCommercial use: conditionalMultimodalCodingRAGAgentsLong contextVisionClassificationJSON / Tool useHighlight
Anthropic releases · 16 in the last 12 months · this family litChangelog →
Specifications
Released
2025-11-01
Context
200k
Architecture
Decoder Only
Knowledge cutoff
2025-12
Specialization
general
Openness
Proprietary
License
ProprietaryCommercial use: conditional
Weights
Not released
Code
Unknown
Training
Fine-tuned
Created by
Anthropic

Developing safe and ethical AI systems.

San Francisco, California, United States
Founded 2021
Website
Pricing
Output / 1M
$25.00
Input / 1M
$5.00

Cheapest of 6 routes · Anthropic

Providers(6)
Microsoft FoundryAnthropicGCP Vertex AIAWS BedrockOpenRouterVercel AI Gateway
View 6 provider routes
Links
Website

About

Claude Opus 4.5 is Anthropic's Claude 4.5 model with multimodal text and image input and an optional reasoning mode. It offers a 200K-token context window and scores 80.7 on MMMU.

Provider price ladder

Compare all 6

Compare API pricing across 4 providers for input and output tokens, batch, and cached reads when available.

ProviderInput / 1MOutput / 1MBatch in / outCacheRoute
Anthropic$5.00$25.00$2.50 / $12.50-
Serverless
GCP Vertex AI$5.00$25.00--
Serverless
Microsoft Foundry$5.00$25.00-read $0.500 / 5m $6.25 / 1h $10.00
ServerlessProvisioned
OpenRouter$5.00$25.00--
Serverless

Available via routers & gateways(16)

LiteLLM

Gateway

Open-source Python SDK and proxy server that unifies 100+ LLM APIs behind a single OpenAI-compatible interface, with load balancing, cost tracking, and configurable failover.

Free OSSAnthropicGCP Vertex AIMicrosoft Foundry

OpenRouter

Hybrid

Unified hybrid gateway to 400+ models from 60+ providers via a single OpenAI-compatible API, with optional auto-routing that selects the best model per prompt.

PassthroughAnthropicGCP Vertex AI

Portkey

Gateway

Production AI gateway routing to 1,600+ LLMs with failover, load balancing, semantic caching, and guardrails; Apache 2.0 core is fully self-hostable with the complete feature set.

SubscriptionAnthropicGCP Vertex AIMicrosoft Foundry

AIRouter

Router

Commercial LLM router that analyzes incoming requests and routes to the optimal model for cost/quality/latency via a drop-in OpenAI-compatible API, with a privacy-preserving embedding mode that avoids sending prompt content.

Passthrough + feeAnthropicGCP Vertex AI

Amazon Bedrock Intelligent Prompt Routing

Router

AWS Bedrock's native intelligent prompt router that routes prompts between Anthropic Claude model tiers (Haiku/Sonnet) based on predicted task complexity, with no extra per-routing charge.

PassthroughAWS Bedrock

Azure AI Foundry Model Router

Router

Microsoft Azure AI Foundry's native model router that uses a trained ML model to route each prompt in real time to the optimal Azure-hosted model, with Balanced/Cost/Quality mode selection and automatic failover.

PassthroughMicrosoft Foundry

Capabilities

VisionMultimodalReasoningJSON / Tool useStructured OutputsCode Execution

Benchmark peer barsfor Coding

SWE-bench ProRank 42 of 46
Claude Fable 5
80.3
Claude Opus 5
79.2
Claude Opus 4.8
69.2
Qwen3.8-Max
67.7
Claude Opus 4.5current
41.8
SWE-bench VerifiedRank 10 of 81
Claude Fable 5
96.0
Claude Opus 5
96.0
Claude Mythos Preview
93.9
Claude Opus 4.8
88.6
Claude Opus 4.5current
80.9
Aider PolyglotRank 10 of 33
GPT-5
88.0
GPT-5.5
88.0
o3-pro
84.9
Gemini 2.5 Pro
83.1
Claude Opus 4.5current
72.0

Benchmark scores(10)

Scores are benchmark-specific and are direction-aware: the same numeric gap can mean very different outcomes across suites. Use the leaderboard context and this model's provider route to decide whether the winning margin is meaningful for your workload.
BenchmarkScoreVersionEvaluationSource
Massive Multi-discipline Multimodal Understanding80.7—Observed 2026-04-15—Source
BFCL77.5—Observed 2026-04-14—Source
SWE-bench Pro41.8—Observed 2026-04-15—Source
MMLU PRO88.9—Observed 2026-04-14—Source
Chatbot Arena1466.0Thinking 32KObserved 2026-04-28—Source
MMMU Pro73.9official Anthropic (comparison model in Opus 4.6 system card), with image cropping toolObserved 2026-02-01—Source
Aider Polyglot72.02026-05 (32k thinking)Observed 2026-05-12—Source
SWE-bench Verified80.9—Observed 2025-11-01—Source
Google-Proof Q&A87.0—Observed 2025-11-01—Source
ARC-AGI-237.6—Observed 2025-11-01—Source

Migration checks

No linked migration route is available for this model yet.

Compare Claude Opus 4.5 with other models

Show all 79 popular comparisonssorted by 7-day search impressions
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