AI model library — official specs, cutoffs & comparisons

36 matching models

AnthropicAvailable

Claude Haiku 5.5

Claude Haiku · claude-haiku-5-5

API

Context: 1,000,000 tokens
Max. output: 128,000 tokens
Knowledge cutoff: Jun 2026Reliable knowledge cutoff · month precision

AnthropicAvailable

Claude Sonnet 5.5

Claude Sonnet · claude-sonnet-5-5

API

Context: 1,000,000 tokens
Max. output: 128,000 tokens
Knowledge cutoff: Jun 2026Reliable knowledge cutoff · month precision

Editorial profile available

AnthropicAvailable

Claude Opus 5.5

Claude Opus · claude-opus-5-5

API

Context: 1,000,000 tokens
Max. output: 128,000 tokens
Knowledge cutoff: Jun 2026Reliable knowledge cutoff · month precision

AnthropicAvailable

Claude Fable 5.1

Claude Fable · claude-fable-5-1

API

Context: 1,000,000 tokens
Max. output: 128,000 tokens
Knowledge cutoff: Jun 2026Reliable knowledge cutoff · month precision

AnthropicAvailable

Claude Mythos 5.1

Claude Mythos · claude-mythos-5-1

API

Context: 1,000,000 tokens
Max. output: 128,000 tokens
Knowledge cutoff: Jun 2026Reliable knowledge cutoff · month precision

AnthropicAvailable

Claude Opus 5

Claude Opus · claude-opus-5

API

Context: 1,000,000 tokens
Max. output: 128,000 tokens
Knowledge cutoff: May 2026Reliable knowledge cutoff · month precision

AnthropicAvailable

Claude Sonnet 5

Claude Sonnet · claude-sonnet-5

API

Context: 1,000,000 tokens
Max. output: 128,000 tokens
Knowledge cutoff: Jan 2026Reliable knowledge cutoff · month precision

AnthropicAvailable

Claude Fable 5

Claude Fable · claude-fable-5

API

Context: 1,000,000 tokens
Max. output: 128,000 tokens
Knowledge cutoff: Jan 2026Reliable knowledge cutoff · month precision

AnthropicAvailable

Claude Mythos 5

Claude Mythos · claude-mythos-5

API

Context: 1,000,000 tokens
Max. output: 128,000 tokens
Knowledge cutoff: Jan 2026Reliable knowledge cutoff · month precision

AnthropicAvailable

Claude Opus 4.8

Claude Opus · claude-opus-4-8

API

Context: 1,000,000 tokens
Max. output: 128,000 tokens
Knowledge cutoff: Jan 2026Reliable knowledge cutoff · month precision

AnthropicAvailable

Claude Opus 4.7

Claude Opus · claude-opus-4-7

API

Context: 1,000,000 tokens
Max. output: 128,000 tokens
Knowledge cutoff: Jan 2026Reliable knowledge cutoff · month precision

AnthropicAvailable

Claude Sonnet 4.6

Claude Sonnet · claude-sonnet-4-6

API

Context: 1,000,000 tokens
Max. output: 128,000 tokens
Knowledge cutoff: Aug 2025Reliable knowledge cutoff · month precision

AnthropicAvailable

Claude Opus 4.6

Claude Opus · claude-opus-4-6

API

Context: 1,000,000 tokens
Max. output: 128,000 tokens
Knowledge cutoff: May 2025Reliable knowledge cutoff · month precision

AnthropicAvailable

Claude Opus 4.5

Claude Opus · claude-opus-4-5-20251101

API

Context: 200,000 tokens
Max. output: 64,000 tokens
Knowledge cutoff: May 2025Reliable knowledge cutoff · month precision

AnthropicAvailable

Claude Haiku 4.5

Claude Haiku · claude-haiku-4-5-20251001

API

Context: 200,000 tokens
Max. output: 64,000 tokens
Knowledge cutoff: Feb 2025Reliable knowledge cutoff · month precision

AnthropicDeprecated

Claude Sonnet 4.5

Claude Sonnet · claude-sonnet-4-5-20250929

API

Context: 200,000 tokens
Max. output: 64,000 tokens
Knowledge cutoff: Jan 2025Reliable knowledge cutoff · month precision

AnthropicRetired

Claude 1.0

Claude · claude-1.0

API

Context: Not documented
Max. output: Not documented
Knowledge cutoff: Not documented

AnthropicRetired

Claude 1.1

Claude · claude-1.1

API

Context: Not documented
Max. output: Not documented
Knowledge cutoff: Not documented

AnthropicRetired

Claude 1.2

Claude · claude-1.2

API

Context: Not documented
Max. output: Not documented
Knowledge cutoff: Not documented

AnthropicRetired

Claude 1.3

Claude · claude-1.3

API

Context: Not documented
Max. output: Not documented
Knowledge cutoff: Not documented

AnthropicRetired

Claude 2.0

Claude · claude-2.0

API

Context: Not documented
Max. output: Not documented
Knowledge cutoff: Not documented

AnthropicRetired

Claude 2.1

Claude · claude-2.1

API

Context: Not documented
Max. output: Not documented
Knowledge cutoff: Not documented

AnthropicRetired

Claude 3 5 Haiku 20241022

Claude · claude-3-5-haiku-20241022

API

Context: Not documented
Max. output: Not documented
Knowledge cutoff: Not documented

AnthropicRetired

Claude 3 5 Sonnet 20240620

Claude · claude-3-5-sonnet-20240620

API

Context: Not documented
Max. output: Not documented
Knowledge cutoff: Not documented

Go beyond the spec sheet

The decisions behind the numbers.

Source-checked guides to pricing, usable context, and access restrictions.

Claude Sonnet 4.6 pricing: API costs, caching and real workload math GPT-5.4 context window: the 1.05M limit, output budget and cost threshold Gemini 2.5 Pro context window: input limits, access and long-document costs GPT-5.4 mini context window: 400K capacity and practical task budgets