Claude Opus 5.5
The frontier reasoning summit from Anthropic featuring a native 1-million-token context window, 92%+ SWE-bench Verified resolution, and hierarchical multi-agent verification.
1,000k
~750k words input
$10 / $50
Prompt / Completion per 1M
92.1 % resolved
SWE-bench Verified
Cloud Managed
Zero local VRAM
Holistic Capability Distribution
Normalized 0-100 rating vectors balanced across intelligence, throughput, and economics.
Verified LLM Benchmarks
Empirical evaluations across academic reasoning, software engineering, agentic execution, and human preference.
Inference Latency & Generation Throughput
Empirical telemetry benchmarking generation throughput (Tokens/Second) and Time to First Token (TTFT).
Measured under concurrent production load
p95 latency: 1140 ms
Across 3,800 monitored requests
Architectural Strengths vs. Operational Considerations
An objective technical balance sheet analyzing deployment advantages and production constraints.
Key Architectural Strengths
- First model in AI history to break 92% on SWE-bench Verified and 95% on GPQA Diamond.
- Full 1,000,000-token context window with perfect factual fidelity and needle retrieval.
- Native multi-agent self-orchestration enables autonomous execution over weeks of developer workload.
Operational Considerations
- 1M token context requires active prompt cache management to control API costs.
Hardware & Execution Parameters
Genealogical Provenance
Pinnacle reasoning model of the Claude 5 family with 1-million-token native context.
anthropic claude 5 opus 202607
Claude Opus 5.5
Architecture Engineering & Capability Deep-Dive
Topology & Attention Mechanics
Next-gen hybrid sparse-dense architecture scaling test-time compute across 1M context with constant memory footprint per layer.
Evaluation Profile & Reasoning Capabilities
Hierarchical sub-agents spawned within the reasoning budget to debate, verify, and falsify proposed conclusions.
Inference Economics & Cost Optimization
$10 / $50 per 1M tokens with prompt caching read discounts.
Primary Production Workloads & Suitability
Cloud Deployment Architecture & Hardware Sizing
Cloud Deployment Architecture
Distributed enterprise serving infrastructure, autoscaling semantics, and runtime execution profile.
Proprietary commercial model hosted on managed multi-region clusters with automatic autoscaling, high availability, and prompt prefix caching.
Multi-Tenant Cloud API
Continuous autoscaling with regional failover
0 GB Local VRAM
Inference executed on hyperscaler accelerator clusters
1,000k tokens
Supported with automated KV cache prefix compression
SDK Installation
Official Repositories & Papers
Compare Showdowns
Claude Opus 5.5 vs Claude Opus 5
Compare Claude Opus 5.5 against Claude Opus 5's verified benchmarks, context window, and pricing.
Claude Opus 5.5 vs Claude Sonnet 5.5
Compare Claude Opus 5.5 against Claude Sonnet 5.5's verified benchmarks, context window, and pricing.
Claude Opus 5.5 vs Claude Opus 4
Compare Claude Opus 5.5 against Claude Opus 4's verified benchmarks, context window, and pricing.
Claude Opus 5.5 vs Claude Sonnet 4
Compare Claude Opus 5.5 against Claude Sonnet 4's verified benchmarks, context window, and pricing.
Commercial Token Rates & Cost Estimator
$10.00 / 1M
Standard prompt context ingestion
$50.00 / 1M
Generated completion & thinking tokens
$1.00 / 1M
Re-used prompt prefix context
Monthly Production Cost Simulator
$2,460.00
Includes prompt caching
-$540.00
Saved via prefix context caching
Comparable Foundation Architectures
Alternative foundation models with comparable intelligence benchmarks, context windows, and deployment profiles.
Claude Opus 5
Anthropic's fifth-generation intelligence flagship, bringing full omni-modal audio/video/image capabilities, 500k context, and deep multi-hop self-critique reasoning.
Claude Sonnet 5.5
Enterprise software development benchmark with native 1-million-token context, dynamic sub-agent spawning, and 90.5% SWE-bench Verified precision.
Claude Opus 4
Claude Opus 4 is Anthropic's flagship frontier reasoning model for the Claude 4 generation, featuring an advanced hybrid test-time reasoning engine, 200k context window, and breakthrough scores on graduate-level STEM and multi-step deduction.
Claude Sonnet 4
Claude Sonnet 4 is Anthropic's premier balanced engineering model for the Claude 4 generation, engineered for rapid autonomous coding agents, multi-step tool execution, and cost-effective enterprise workflows.
SDK Installation & API Integration
import Anthropic from '@anthropic-ai/sdk';
const anthropic = new Anthropic();
const msg = await anthropic.messages.create({
model: 'claude-5-5-opus-20260910',
max_tokens: 16384,
messages: [{ role: 'user', content: 'Synthesize the unified architecture for an autonomous spacecraft navigation system.' }],
});
console.log(msg.content);Frequently Asked Questions about Claude Opus 5.5
Engineering specifications, VRAM sizing, commercial licensing terms, token economics, and empirical benchmark evaluations.
Claude Opus 5.5 supports 1,000,000 tokens of context, equivalent to roughly 750,000 words or 2,500 pages of text.