This model was retired on 2026-10-19. The pricing below is the last-known rate, kept for migration reference.

Claude Opus 4.5Deprecated

AnthropicReleasedNov 24, 2025KnowledgeMay 2025
VisionTool useReasoningPrompt cachingStructured output
Context
410K
Max output
64K
Serving providers
7
Cheapest input
$5.00 /1M
Prices are on-demand list rates. Enterprise commitments (committed-use discounts, provisioned throughput, negotiated rates) can be materially lower.

Benchmarks

independent evaluations · source: Artificial Analysis
Speed & latency
Output speed
45 t/s
tokens / second
Time to first token
1.35s
latency
Headline indices
Intelligence Index
41.9
of 100
Individual benchmarks · click a row for effort variants
BenchmarkBest scoreEffortCost / task
CritPt5%reasoning: true
GPQA Diamond87%reasoning: true
Humanity's Last Exam30%reasoning: true
IFBench58%reasoning: true
LiveCodeBench87%reasoning: true
Long-Context Reasoning76%reasoning: true
MMLU-Pro89%reasoning: true
MMMU-Pro74%reasoning: true
Omniscience14reasoning: true
Omniscience Accuracy0.5reasoning: true
Omniscience Non Hallucination0.4reasoning: true
SciCode50%reasoning: true
TerminalBench Hard47%reasoning: true
τ²-bench89%reasoning: true

Pricing by serving provider

last-known · per 1M tokens · click a provider to expand
Serving providerInput /1MOutput /1MEndpoints
Anthropic$5.00$25.001
Azure$5.00$25.001
Gmi$5.00$25.001
Vertex AI$5.00$25.001
Vercel AI Gateway$5.00$25.001
OpenRouter$5.00$25.001
Databricks$5.00$25.001

Price history

input + output $/1M since we started tracking
Input Output
$0.000$10.00$20.00$30.00Nov 25Jan 13Feb 9Aug 26$25.00$5.00

Cost calculator

estimate your monthly spend on this model
$3,000
estimated / month

Model IDs

copy the exact identifier for your platform
claude-opus-4-5azure_ai/claude-opus-4-5gmi/anthropic/claude-opus-4.5vertex_ai/claude-opus-4-5vercel_ai_gateway/anthropic/claude-opus-4.5anthropic/claude-opus-4.5databricks/databricks-claude-opus-4-5

Frequently asked questions

Claude Opus 4.5 pricing, context and availability

Is Claude Opus 4.5 still available?

Claude Opus 4.5 was retired on 2026-10-19. The pricing on this page is the last-known rate, kept for migration reference.

How much did Claude Opus 4.5 cost?

Claude Opus 4.5's last-known pricing, before it was retired on 2026-10-19, was $5.00 per 1M input tokens and $25.00 per 1M output tokens.

What was the context window of Claude Opus 4.5?

Claude Opus 4.5 had a 410K token context window and could return up to 64K output tokens.

What could Claude Opus 4.5 do?

Claude Opus 4.5 supported image input (vision), tool use, reasoning, prompt caching and structured output.

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Popular comparisons

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