One Model Family · One Curated Home

Claude on GlobalGPT

Use Claude Fable 5.1 for demanding reasoning, Opus 5.5 for complex coding and knowledge work, Sonnet 5.5 for everyday balance, or Haiku 5.5 for fast everyday tasks. Explore practical guides and prompts for your task.

Curated by GlobalGPT Review Team

Claude writing and long-document workflow illustration
Choose Your Starting PointClaude Opus 5.5

Anthropic’s Claude Models, Together in GlobalGPT.

GlobalGPT is a multi-model subscription workspace. Claude model access here is separate from a Claude.ai subscription, Claude Code and Anthropic API billing; available tools and limits depend on the route you use.

4Model Starting Points
6Guide Topics
4Prompt & Workflow Paths

A Selected Path Through the Claude Family.

Selected generations for context. Opus 5.5, Sonnet 5.5 and Haiku 5.5 update the current choices, while Fable 5.1 remains an option for demanding reasoning.

Earlier generation

Claude 4.5 & 4.6

Earlier writing and coding generations.

Earlier generation

Sonnet 5

Earlier balanced writing and coding.

Earlier generation

Opus 5

Earlier complex reasoning and coding.

Fable, Sonnet, Opus or Haiku: Choose Your Starting Point.

Choose Fable 5.1 for demanding reasoning, Opus 5.5 for complex work, Sonnet 5.5 for everyday balance, or Haiku 5.5 for fast everyday tasks.

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Layered terracotta and apricot paper arches with an ivory vase.
Demanding reasoning

Claude Fable 5.1

Choose Fable 5.1 for demanding reasoning and extended agentic work, especially when other Claude routes fall short on your task. Supply source material, constraints and acceptance checks.

Use in GlobalGPT Official source
Terracotta paper arcs with a smooth shaded background
Everyday balance

Claude Sonnet 5.5

A balanced option for writing, document analysis and coding. Anthropic positions Sonnet 5.5 around speed and intelligence; check the result against your sources and tests.

Use in GlobalGPT Official source
Layered plum paper arches on a warm ivory background
Coding & knowledge work

Claude Opus 5.5

A starting point for complex coding and knowledge work. Anthropic recommends Opus 5.5 for most workloads; assess the quality, cost and review effort on your own task.

Use in GlobalGPT Official source
Sage green paper leaves and a ribbon on a warm ivory background
Fast everyday tasks

Claude Haiku 5.5

A fast, efficient option for classification, structured extraction, concise summaries and everyday tasks. Provide clear output requirements and check important details against your source.

Use in GlobalGPT Official source
Earlier Models & Additional OptionsHaiku 4.5, Sonnet 5, Opus 5, Fable 5, Opus 4.8 and Sonnet 4.6

Claude Fable 5Earlier generation retained for existing workflows and comparisons./home/claude-fable-5?inviter=hub_research_claude&login=1

Claude Opus 4.8Earlier generation retained for existing workflows and comparisons./home/claude-opus-4-8?inviter=hub_research_claude&login=1

Claude Sonnet 4.6Earlier generation retained for existing workflows and comparisons./home/claude-sonnet-4-6?inviter=hub_research_claude&login=1

Claude Sonnet 5Earlier model · Listed on GlobalGPTTerracotta paper arcs with a smooth shaded backgroundThe earlier Sonnet 5 option, retained for existing writing, analysis and coding workflows./home/claude-sonnet-5?inviter=hub_research_claude&login=1

Claude Opus 5Earlier model · Listed on GlobalGPTLayered plum paper arches on a warm ivory backgroundThe earlier Opus 5 option, retained for existing workflows and historical comparisons./home/claude-opus-5?inviter=hub_research_claude&login=1

Claude Haiku 4.5Earlier model · Available on GlobalGPTSage green paper leaves and a ribbon on a warm ivory backgroundAn earlier Haiku option for short drafts, classification and structured extraction when you can check the result quickly./home/claude-haiku-4-5?inviter=hub_research_claude&login=1

Compare Models, Access and Costs

Choose by workload, then review official subscriptions, developer API prices and published benchmark conditions.

Claude API Token Prices

Model / APIInput / 1M tokensCache read / 1MOutput / 1MPrompt / cache-write conditions
Fable 5.1Anthropic
Anthropic official documentation ↗Last verified:
$10.00$0.25$50.005-minute cache write: $12.50 / 1M
Opus 5.5Anthropic
Anthropic official documentation ↗Last verified:
$4.00$0.20$20.005-minute cache write: $5.00 / 1M
Sonnet 5.5Anthropic
Anthropic official documentation ↗Last verified:
$2.00$0.10$10.005-minute cache write: $2.50 / 1M
Haiku 5.5 ≤100KAnthropic
Anthropic official documentation ↗Last verified:
$0.10$0.01$0.505-minute cache write: $0.125 / 1M
Haiku 5.5 >100KAnthropic
Anthropic official documentation ↗Last verified:
$0.50$0.05$2.505-minute cache write: $0.625 / 1M

USD, standard Claude API rates. Haiku has separate prompt-length tiers. US-only inference, Opus fast mode, batch processing and tool usage have their own adjustments. Prices do not describe GlobalGPT subscription usage.

Official provider documentation ↗Last verified:

Find the Guide That Matches Your Next Step.

Browse access, current and earlier models, documents, coding, creative workflows and privacy. Each article has one primary category.

How We Test Models

Understand subscription routes and billing.

Access & Plans

Claude Opus 4.7 Pricing: Earlier-Model Costs

Understand legacy Opus 4.7 API rates, subscription billing and when a current Claude model is a better choice.

Earlier Model Pricing
GlobalGPTClaude AI Plans 2026: Free, Pro, Max, Team, and Enterprise

Compare Claude plans and distinguish an official subscription from GlobalGPT access.

Claude AI Plans 2026: Free, Pro, Max, Team, and Enterprise article cover01GlobalGPTClaude Code Pricing Guide: Free, Pro, Max & API

Understand Claude Code subscriptions, API billing and shared usage limits.

Claude Code Pricing Guide: Free, Pro, Max & API article cover02

Give Claude the Context It Needs.

Use the linked templates and worked examples. Supply your own source material, constraints and acceptance checks.

Start With a Tool Built for Your Task.

Summarize text, draft an email, work through code or review PDF excerpts. These GlobalGPT tools offer Claude models and task-specific presets; check each tool’s input requirements.

Read the Evidence Behind the Guidance.

Anthropic publishes model and policy information. GlobalGPT guides provide editorial workflows and explicitly scoped tests.

Claude Questions, Answered

Model choice, access routes and evidence in one place.

How do Haiku, Sonnet, Opus and Fable differ?

Haiku targets fast focused work; Sonnet balances writing and coding; Opus suits complex coding and knowledge work. Fable 5.1 is the demanding-reasoning recommendation on this page.

Is Fable 5.1 the same as Mythos?

Anthropic describes them as sharing a base model with different safeguards and access. Fable is generally available; Mythos is restricted to trusted access. This page links to Fable on GlobalGPT.

Where can I use Haiku 5.5 on GlobalGPT?

Use the Claude Haiku 5.5 model card or model selector. The verified entry is /home/claude-haiku-5-5.

Does GlobalGPT include Claude Code or native Claude app features?

The model cards provide GlobalGPT chat access. Claude Code, native app tools and official Claude subscriptions have their own access and usage rules.

Are the Claude API prices my GlobalGPT costs?

No. They are Anthropic’s direct API token rates. GlobalGPT account pricing and allowances are separate; the official Claude plan table is also a separate product comparison.

Can the Claude PDF tool read an uploaded PDF?

The linked Claude PDF Text Summarizer works with text copied or extracted from a PDF. It does not upload or parse the PDF file directly. Keep page labels and review the original source.

Bring Your Next Draft, Document or Coding Question.

Start with Claude Fable 5.1 for demanding reasoning, or choose Opus 5.5, Sonnet 5.5 or Haiku 5.5 for your task.

Use Claude Fable 5.1