Benchable Open Beta

Anthropic: Claude Sonnet 5.5

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File input Image input Text input Text output
Author's Description

Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. It is especially strong at building features, fixing bugs, and producing...

Key Specifications
Cost
$$$$$
Context
1M
Released
Sep 28, 2026
Supported Parameters

This model supports the following parameters:

Stop Response Format Tool Choice Max Tokens Structured Outputs Reasoning Tools Include Reasoning
Features

This model supports the following features:

Reasoning Tools Structured Outputs Response Format
Model Pricing

Current Pricing

Feature Price (per 1M tokens)
Prompt $2
Completion $10
Input Cache Read $0.1
Input Cache Write $2.5
Web Search $10000

Price History

Available Endpoints
Provider Endpoint Name Context Length Pricing (Input) Pricing (Output)
Google
Google | anthropic/claude-sonnet-5.5-20260928 1M $2 / 1M tokens $10 / 1M tokens
Amazon Bedrock
Amazon Bedrock | anthropic/claude-sonnet-5.5-20260928 1M $2 / 1M tokens $10 / 1M tokens
Azure
Azure | anthropic/claude-sonnet-5.5-20260928 1M $2 / 1M tokens $10 / 1M tokens
Claude Platform on AWS
Claude Platform on AWS | anthropic/claude-sonnet-5.5-20260928 1M $2 / 1M tokens $10 / 1M tokens
Anthropic
Anthropic | anthropic/claude-sonnet-5.5-20260928 1M $2 / 1M tokens $10 / 1M tokens
Google
Google | anthropic/claude-sonnet-5.5-20260928 1M $2.2 / 1M tokens $11 / 1M tokens
Azure
Azure | anthropic/claude-sonnet-5.5-20260928 1M $2.2 / 1M tokens $11 / 1M tokens
Google
Google | anthropic/claude-sonnet-5.5-20260928 1M $2.2 / 1M tokens $11 / 1M tokens
Amazon Bedrock
Amazon Bedrock | anthropic/claude-sonnet-5.5-20260928 1M $2.2 / 1M tokens $11 / 1M tokens
Amazon Bedrock
Amazon Bedrock | anthropic/claude-sonnet-5.5-20260928 1M $2.2 / 1M tokens $11 / 1M tokens
Benchmark Results
Benchmark Category Reasoning Strategy Free Executions Accuracy Cost Duration
Other Models by anthropic
 Released Params Context
Speed Ability Cost
Anthropic: Claude Fable 5.2 Nov 09, 2026 — 1M
File input Image input Text input Text output
★★★ ★★★★★ +$$$$$
Anthropic: Claude Haiku 5.5 Oct 07, 2026 — 1M
File input Image input Text input Text output
★★★★ ★★★ $$$
Anthropic: Claude Opus 5.5 Sep 22, 2026 — 1M
File input Image input Text input Text output
★★★ ★★★★★ +$$$$$
Anthropic: Claude Fable 5.1 Sep 01, 2026 — 1M
File input Image input Text input Text output
★★★ ★★★★★ +$$$$$
Claude Opus 5 (Fast) Unavailable Jul 24, 2026 — 1M
File input Image input Text input Text output
— — +$$$$$
Anthropic: Claude Opus 5 Jul 24, 2026 — 1M
File input Image input Text input Text output
— — +$$$$$
Anthropic: Claude Sonnet 5 Jun 30, 2026 — 1M
File input Image input Text input Text output
★★★ ★★★★★ $$$$$
Anthropic: Claude Fable 5 Jun 09, 2026 — 1M
File input Image input Text input Text output
— — +$$$$$
Anthropic: Claude Opus 4.8 (Fast) Unavailable May 27, 2026 — 1M
File input Image input Text input Text output
★★★★★ ★★★★ +$$$$$
Anthropic: Claude Opus 4.8 May 27, 2026 — 1M
File input Image input Text input Text output
★★★★ ★★★★ +$$$$$
Anthropic: Claude Opus 4.7 (Fast) Unavailable May 12, 2026 — 1M
File input Image input Text input Text output
— — +$$$$$
Anthropic: Claude Opus 4.7 Unavailable Apr 16, 2026 — 1M
Image input Text input Text output
★★★★ ★★★★★ +$$$$$
Anthropic: Claude Opus 4.7 Apr 16, 2026 — 1M
File input Image input Text input Text output
★★★★ ★★★★★ +$$$$$
Anthropic: Claude Opus 4.6 (Fast) Unavailable Apr 07, 2026 — 1M
File input Image input Text input Text output
— — +$$$$$
Anthropic: Claude Sonnet 4.6 Feb 17, 2026 — 1M
File input Image input Text input Text output
★★★★ ★★★★ $$$$$
Anthropic: Claude Opus 4.6 Feb 04, 2026 — 1M
File input Image input Text input Text output
★★★ ★★★★ +$$$$$
Anthropic: Claude Opus 4.5 Nov 24, 2025 — 200K
File input Image input Text input Text output
★★★ ★★★★★ +$$$$$
Anthropic: Claude Haiku 4.5 Oct 15, 2025 — 200K
File input Image input Text input Text output
★★★★ ★★★★ $$$$
Anthropic: Claude Haiku 4.5 Unavailable Oct 14, 2025 — 200K
Image input Text input Text output
— — $$$$$
Anthropic: Claude Sonnet 4.5 Sep 29, 2025 — 1M
File input Image input Text input Text output
★★★ ★★★★ $$$$$
Anthropic: Claude Opus 4.1 Aug 05, 2025 — 200K
File input Image input Text input Text output
★★★ ★★★★ +$$$$$
Anthropic: Claude Opus 4 Unavailable May 22, 2025 — 200K
File input Image input Text input Text output
★★★ ★★★★ +$$$$$
Anthropic: Claude Sonnet 4 Unavailable May 22, 2025 — 1M
File input Image input Text input Text output
★★★ ★★★★ $$$$$
Anthropic: Claude 3.7 Sonnet Unavailable Feb 24, 2025 — 200K
File input Image input Text input Text output
★★★★ ★★★★ $$$$$
Anthropic: Claude 3.5 Haiku Unavailable Nov 03, 2024 — 200K
Image input Text input Text output
★★★★ ★★ $$$$
Anthropic: Claude 3.5 Haiku (2024-10-22) Unavailable Nov 03, 2024 — 200K
File input Image input Text input Text output
★★★★ ★★ $$$$
Anthropic: Claude 3.5 Sonnet Unavailable Oct 21, 2024 ~400B 200K
File input Image input Text input Text output
★★★★ ★★★★ +$$$$$
Anthropic: Claude 3.5 Sonnet (2024-06-20) Unavailable Jun 19, 2024 ~400B 200K
File input Image input Text input Text output
★★★★ ★★★★ $$$$$
Anthropic: Claude 3 Haiku Unavailable Mar 12, 2024 ~20B 200K
Image input Text input Text output
★★★★★ ★★ $$$
Anthropic: Claude 3 Sonnet Unavailable Mar 04, 2024 ~200B 200K
Image input Text input Text output
★★★★★ ★★★ $$$$$
Anthropic: Claude 3 Opus Unavailable Mar 04, 2024 ~2T 200K
Image input Text input Text output
★★★ ★★★ +$$$$$
Anthropic: Claude v2 Unavailable Nov 21, 2023 137B 200K
Text input Text output
★★ ★★★ +$$$$$
Anthropic: Claude v2.1 Unavailable Nov 21, 2023 137B 200K
Text input Text output
★★★ ★★★ +$$$$$
Anthropic: Claude v2.0 Unavailable Jul 27, 2023 137B 100K
Text input Text output
★★★★ ★★★ +$$$$$