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anthropic / Chat

Claude Opus 5.5 Fast Low

anthropic/claude-opus-5-5-fast-low

Claude Opus 5.5 fast mode (quicker output, premium rate) with low thinking — fastest, cheapest per answer

Catalog status

Enabled

Research checked

2026-10-07

Benchmark results

No recorded results

Results are source-attributed, not TokenBazaar measurements. Different tests and thinking variants are not interchangeable.

Published benchmark coverage

Reviewed sources do not include results for this exact version. Provider specifications and API capabilities remain listed separately.

Model specifications

Context window

1M

Published provider limit

Maximum output

128K

Published provider limit

Knowledge cutoff

Jun 2026

Upstream model

Input and output modalities

Provider-reported formats; API compatibility is detailed below.

Input

Text
Image

Output

Text
Exact model ID
anthropic/claude-opus-5-5-fast-low
Model type
Chat
Context window
1,000,000 tokens
Maximum output
128,000 tokens
Knowledge cutoff
Jun 2026

A context window is the total conversation budget, not a separate maximum input allowance; generated output and reasoning can use that budget. Published provider limits are not independently tested TokenBazaar request limits.

Versions and thinking levels

Choose from 8 enabled versions. The exact ID determines the version and its price; benchmark scores do not carry over between variants.

Claude Opus 5.5₹192.00 in / ₹960.00 out per 1M tokens
Claude Opus 5.5 Fast₹384.00 in / ₹1920.00 out per 1M tokens
Claude Opus 5.5 Fast High₹384.00 in / ₹1920.00 out per 1M tokens
Claude Opus 5.5 Fast LowSelected₹384.00 in / ₹1920.00 out per 1M tokens
Claude Opus 5.5 Fast Max₹384.00 in / ₹1920.00 out per 1M tokens
Claude Opus 5.5 High₹192.00 in / ₹960.00 out per 1M tokens
Claude Opus 5.5 Low₹192.00 in / ₹960.00 out per 1M tokens
Claude Opus 5.5 Max₹192.00 in / ₹960.00 out per 1M tokens

Features and tool support

TokenBazaar’s exposed interface, not every feature advertised by the provider. “Available” describes the implemented interface, not a successful test of every input or tool.

Reasoning configuration

Adaptive thinking; reasoning and answer share the output budget.

Selected effort: low. Fast version selected; premium catalog pricing applies.

Coding and agent workflows

Text/code generation and customer-managed tool loops.

Coding benchmark results do not establish a hosted terminal, sandbox, autonomous browser or guaranteed task success.

Streaming answers

Available

Incremental text through TokenBazaar’s chat endpoint; Claude also has native Messages access.

Customer-defined function tools

Limited

Function schemas and tool results are forwarded to Claude. The chat bridge uses automatic tool selection; your application authorizes and executes every tool.

Forced or named tool selection

Not exposed

The chat bridge selects tools automatically. Native Messages does not expose forced or named tool selection; do not assume a tool will be called every turn.

Images and PDFs

Limited

The chat bridge accepts image/PDF content. Provider input modalities are listed separately; file size, content and model limits still apply.

Hosted web search / browsing

Not exposed

No provider-hosted web search or web-fetch tool is exposed. Customer-owned search can be implemented as an authorized function tool.

Hosted code execution / computer use

Not exposed

No built-in execution environment or computer-control tool is provided. Code generation is not code execution.

Hosted file search / persistent assistants

Not exposed

No hosted file-search index, Assistants endpoint or persistent provider agent is exposed.

Batch / fine-tuning / cached-price discounts

Not exposed

No public batch or fine-tuning endpoint, or separate cached-token discount, is offered here.

Sources and verification

Provider specifications describe the upstream model, not a guarantee of every feature through TokenBazaar. Prices come from the enabled catalog; benchmark results belong to the exact tested model.

Research notes (1)
  • Published provider limits; maximum-capacity requests have not been independently exercised through TokenBaazar. Thinking-level variants use the same provider model; reasoning and answer tokens share the output budget.