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anthropic / Chat

Claude Opus 5.5 Max

anthropic/claude-opus-5-5-xhigh

Claude Opus 5.5 with extra-high thinking — deepest reasoning

Catalog status

Enabled

Research checked

2026-10-07

Price / performance

What it costs to get this result

FrontierCode v1.1 (Main) · Source-reported results, not a composite ranking. Prices use the average of TokenBazaar input and output rates per million tokens; actual spend depends on usage. Test configurations differ.

Claude Opus 5.5 Max51.42% · 43 sourced models

Blended price / 1M tokens · log scale

● Current model● Other modelsDashed line: price/score frontier among plotted models
Compare sourced models on this benchmark

Benchmark results

5 reported results

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

5 of 5 results

Terminal-Bench 4.0

Agentic · Third-party report

Test conditions and source

Explicitly the Xhigh effort configuration ('Claude Opus 5.5 (Xhigh, Default Fallback)') on AA's independently-run Terminal-Bench 4.0 harness — matches the requested Opus 5.5 xhigh condition exactly, not max/fast/default. Distinct from Anthropic's own self-reported xhigh figure of 66.4% already on file (different methodology/harness) and from AA's narrative max-effort figure of 59.6% quoted in AA's launch article.

Tested model: anthropic/claude-opus-5-5-xhigh

Artificial Analysis · Opus 5.5 (Xhigh) vs Opus 5 (High) comparison · Checked 2026-10-06

60%

Terminal-Bench-Science 0.1

Agentic · Third-party report

Test conditions and source

Explicitly the xhigh effort configuration ('Claude Opus 5.5 (xhigh)'); AA also separately reports 59% at max effort for the same model on this benchmark — kept distinct and not merged. Independent AA harness, not Anthropic's own 58.7% (max effort) figure already on file.

Tested model: anthropic/claude-opus-5-5-xhigh

Artificial Analysis · Terminal-Bench-Science 0.1 leaderboard launch post (LinkedIn) · Checked 2026-10-06

62%

CursorBench 4.0

Coding · Third-party report

Test conditions and source

Row explicitly labeled 'Opus 5.5 Extra High' (xhigh) at 56.0%, $6.98/task. Kept distinct from the existing 57.8% entry, which is Anthropic's own self-reported max-effort figure from the launch page, and from CursorBench's own 'Opus 5.5 Max' row (57.8%, $13.43/task) — same number as Anthropic's but a separately sourced/priced data point.

Tested model: anthropic/claude-opus-5-5-xhigh

Cursor · CursorBench 4.0 public leaderboard · Checked 2026-10-06

56%

FrontierCode v1.1 (Main)

Coding · Third-party report

Test conditions and source

Cognition FrontierCode 1.1; Claude Opus 5.5; xhigh effort; claude-code harness; Main subset (100 tasks). Published weighted rubric score (new_score × 100), not the all-or-nothing pass rate; solution-source violations score zero. Source field new_score=0.5142. Publisher evaluation, not a TokenBazaar measurement; provider effort configuration is not a guarantee of the API's fixed thinking budget.

Tested model: anthropic/claude-opus-5-5-xhigh

Cognition · FrontierCode 1.1 original leaderboard · Checked 2026-10-07

51.42%

FrontierCode v1.1 (Extended)

Coding · Third-party report

Test conditions and source

Cognition FrontierCode 1.1; Claude Opus 5.5; xhigh effort; claude-code harness; Extended subset (150 tasks). Published weighted rubric score (new_score × 100), not the all-or-nothing pass rate; solution-source violations score zero. Source field new_score=0.6353. Publisher evaluation, not a TokenBazaar measurement; provider effort configuration is not a guarantee of the API's fixed thinking budget.

Tested model: anthropic/claude-opus-5-5-xhigh

Cognition · FrontierCode 1.1 original leaderboard · Checked 2026-10-07

63.53%

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-xhigh
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 Low₹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 MaxSelected₹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: xhigh. Reasoning level is not a measured intelligence or speed score.

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.