Anthropic: Claude Fable Latest ($$$$)

The model alias routes dynamically to the newest member of the Claude Fable family, meaning the underlying weights can evolve while the endpoint key stays the same. According to the Deployalo gateway spec sheet, the entry supports text, image, and file inputs with text output, suggesting a multimodal model intended for mixed document and conversational workloads rather than a purely textual baseline. Its routing model is positioned for production deployments that want a stable interface tied to whatever the family considers its current flagship.

The gateway-listed spec sheet pairs a 1,000,000-token context window with a 128,000-token max output ceiling, framing the model as suitable for long-document analysis, multi-turn reasoning across large inputs, and structured generation tasks. Capability flags reported at the gateway level include vision/OCR, tool use, JSON-structured output, and reasoning, which align with a general-purpose assistant designed for retrieval-heavy, agentic, and document-processing pipelines. Because the family identifier suggests forward progression, the alias format gives teams a simple way to track upstream improvements without rewiring their integration.

Kilo Gateway~anthropic/claude-fable-latestclaude-fable

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Quick Info

Provider: Kilo Gateway
Model key: ~anthropic/claude-fable-latest
Release date: Jun 9, 2026
Last updated: Jun 9, 2026
Input modalities
Output modalities
Capabilities

Cost

Input token cost: $10.00
Output token cost: $50.00

Limits

Output tokens: 128,000 tokens
Context window: 1,000,000 tokens

Transparent token rates

Compare Anthropic: Claude Fable Latest ($$$$) pricing

Rates are shown per one million tokens. Combined means one million input plus one million output tokens.

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Latest news about Anthropic: Claude Fable Latest ($$$$)

Kilo Gateway

CoverageBenchmark

On September 1, 2026, Anthropic announced Claude Fable 5.1 alongside Claude Mythos 5.1, both carrying the API model ID claude-fable-5-1. Pricing holds at $10 per 1M input tokens and $50 per 1M output tokens, while cache-read pricing drops to $0.25 per 1M tokens — a 75% reduction. Both versions are accessible via Claude Claude Fable 5.1 is described as a minor version bump from Fable 5/Mythos 5 (June 2026), with improvements in coding, knowledge work, long-running reasoning accuracy across multi-step agentic execution, scientific research (molecular design and computational biology), agentic task verification, and writing quality. Pub

Kilo Gateway

CoverageRelease Notes

Anthropic released Claude Fable 5.1 on September 1, 2026, making the flagship model available via its API, cloud platforms (AWS, Google Cloud, Microsoft Azure), and the Claude desktop app. A companion variant, Mythos 5.1, shares the same underlying model but is reserved for approved cybersecurity and life-sciences orga Anthropic reported substantial benchmark gains for Fable 5.1 over Fable 5: 55.8% on Terminal-Bench 4.0 (up from 42%), 52.6% on Terminal-Bench-Science 0.1 (up from 24.7%, more than double), and gains in business-workflow automation, knowledge work, and browser-agent tasks. Mythos 5.1 scored 60.9% on Terminal-Bench 4.0 u

Kilo Gateway

CoverageBenchmark

OpenOCR publishes a benchmark page explicitly targeting the model identifier "Anthropic: Claude Fable Latest" (served as openrouter--anthropic-claude-fable-latest). The page reports an average OCR score of 99.4% across 11 documents in the corpus ocr-shared-11-normalized/v2, with an average latency of 7.1s, and states t The page also documents the OCR behavior on representative inputs such as synthetic grocery and café receipts, returning full text transcripts that match the ground truth under character-LCS similarity (100% on both receipts shown), with example latencies of 6.7s and 5.5s respectively. A corpus manifest SHA256 (b8f240c