What is Claude Opus 4.8?

Claude Opus 4.8 is Anthropic's most capable Opus model for complex reasoning, long-horizon agentic coding, and high-autonomy work. It is available at the same price as Opus 4.7 with a 1M token context window and 128K max output.

What is the context length of Claude Opus 4.8?

Claude Opus 4.8 has a recorded input context length of 1,000,000 tokens.

What providers serve Claude Opus 4.8, and can I use it via API?

Claude Opus 4.8 is available through the Phaseo API, with 2 active providers currently recorded. Recorded providers include Abacus, Amazon Bedrock, Anthropic, Anthropic, Anthropic, Anthropic, Azure, and CrossModel and 15 more.

Does Claude Opus 4.8 support tool calling?

Yes. At least one active provider route for Claude Opus 4.8 currently advertises tool calling support. Provider support can vary, so requests are routed only to compatible routes.

Does Claude Opus 4.8 support structured outputs?

Yes. At least one active provider route for Claude Opus 4.8 currently advertises structured outputs support. Provider support can vary, so requests are routed only to compatible routes.

Claude Opus 4.8 API Pricing — Compare 22 Providers

Name: Anthropic Claude Opus 4.8
Creator: Anthropic

Providers

API providers, route pricing, availability, and recent reliability signals.

Performance

Latency, throughput, and reliability signals from recent traffic.

Pricing

Effective prices over the last 30 days, with current provider list prices for context.

Benchmarks

Activity

Daily gateway activity over the last 30 days, with current UTC-day pace projection.

Apps Using This Model

Public apps observed in gateway usage for this model.

Model Uptime

Uptime trend for this model over the last 24 hours.

About

Key dates, capabilities, and model metadata.

Subscriptions

Commercial plans and bundled access that currently include this model.

Claude Opus 4.8 API Pricing — Compare 22 Providers | Phaseo

Providers

API providers, route pricing, availability, and recent reliability signals.


Anthropic(Standard)	$5	$25	$0.5	--	--	--

Amazon Bedrock	$5	$25	$0.5	--	--	--

Venice(Standard)	$6	$30	$0.6	--	--	--

Claude Platform for AWS (US)(Standard)	$5.5	$27.5	$0.55	--	--	--

Anthropic (US)(Standard)	$5.5	$27.5	$0.55	--	--	--

Claude Platform for AWS(Standard)	$5	$25	$0.5	--	--	--

DigitalOcean	$5	$25	$0.5	--	--	--

GMICloud	--	--	--	--	--	--

Google Vertex	$5	$25	$0.5	--	--	--

Azure	--	--	--	--	--	--

Performance

Hourly latency and throughput from the past seven days.

No gateway telemetry in the past 7 days

Hourly charts will appear when this model processes gateway traffic in the selected location.

Pricing

Weighted provider pricing over the last 30 days, with recent route pricing history below.

Effective pricing

Weighted by observed usage over the last 30 days. Every provider with recorded pricing is included.

Weighted input price

Per 1M tokens

Weighted output price

Per 1M tokens

Price history

USD per 1M tokens · 30-day rolling effective prices · exact UTC list changes


Amazon Bedrock	--	--	$5	$25	--
Anthropic	--	--	$5	$25	--
Anthropic (US)	--	--	$5.5	$27.5	--
Azure	--	--	--	--	--
Claude Platform for AWS	--	--	$5	$25	--
Claude Platform for AWS (US)	--	--	$5.5	$27.5	--
DigitalOcean	--	--	$5	$25	--
GMICloud	--	--	--	--	--
Google Vertex	--	--	$5	$25	--
Venice	--	--	$6	$30	--

Benchmarks

Artificial Analysis

Independent evaluations · Index v4.3

Source: Artificial Analysis

Intelligence47.8Overall model capability Coding74.3Software engineering capability Agentic42.8Multi-step task performance Evaluation cost$4,564.75Full Intelligence Index evaluation · USD

Tested configuration: Claude Opus 4.8 (Adaptive Reasoning, Max Effort)

Source and evaluation details

Claude Opus 4.8 (Adaptive Reasoning, Max Effort); Artificial Analysis ID 992b7b84-5069-4c6a-9295-834252553d50; Intelligence Index v4.3
Claude Opus 4.8 (Adaptive Reasoning, Max Effort); Artificial Analysis ID 992b7b84-5069-4c6a-9295-834252553d50; Intelligence Index v4.3; USD 2.595 per task

Other benchmarks

GPQA Diamond93.60%

Self-reportedSource ↗

Details

Max effort

LiveBench77.22%

Source ↗

Details

2026-01-08 release; xHigh effort

SWE-Bench88.60%

Self-reportedSource ↗

Details

SWE-bench Verified; max effort; avg 5 trials

NYT Connections94.10

Source ↗

Details

xHigh reasoning; 940 puzzles

SimpleBench64.80%

Source ↗

OSWorld83.40%

Self-reportedSource ↗

Details

OSWorld-Verified; updated Anthropic evaluation setup

Creative Story Writing1.70

Source ↗

Details

xHigh reasoning; win prob 0.75; 95% CI 1.6..1.9

SWE Bench Pro69.20%

Self-reportedSource ↗

Details

Max effort; avg 5 trials

Apps Using This Model

Public apps observed in gateway usage for this model.

AI Stats Chat

ai-stats.phaseo.app

0 tokens

AI Stats Chat

ai-stats.phaseo.app

0 tokens

Apps Using This Model

Public apps observed in gateway usage for this model.

Model Uptime

Uptime trend for this model over the last 24 hours.

100.0%

Last 24 hours

No requests observed

Uptime per hour

About

Key dates, capabilities, and model metadata.

Announcement

28 May 2026·3 months ago

Release

28 May 2026·3 months ago

Deprecation

Not listed

Retirement

Not listed

Parameters

Not listed

License

Proprietary

Training Tokens

Not listed

Input

TextImage

Output

Text

Related models

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Claude Opus 4.7

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Claude Opus 5

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About

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Performance

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Benchmarks

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Apps Using This Model

Model Uptime

About

Subscriptions

Anthropic: Claude Opus 4.8

Providers

Performance