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Anthropic releases Claude Opus 5.5 with 1M context and lower prices · 2 sources tracked

By PulseAugur Editorial · [2 sources] ·

Anthropic has released Claude Opus 5.5, featuring a 1 million token context window and an updated pricing structure. The new model is priced at $4 per million input tokens and $20 per million output tokens, representing a cost reduction compared to its predecessor, Claude Opus 5, and Fable 5.1. Benchmarks indicate that Claude Opus 5.5 outperforms Fable 5.1 and GPT-6 Astra on coding and knowledge-based tasks, though GPT-6 Astra leads in specific areas like Terminal-Bench-Science and Zapier's AutomationBench. AI

IMPACT Sets new SOTA on coding benchmarks and offers significant cost reductions, potentially accelerating adoption of large-context models.

RANK_REASON Frontier-lab model release with system card [lever_c_demoted from frontier_release: ic=2 ai=1.0]

Read on Medium — Claude tag →

AI-generated summary · Google Gemini · from 2 sources. How we write summaries →

Anthropic releases Claude Opus 5.5 with 1M context and lower prices · 2 sources tracked

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Signal score
2 / 100
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Newsworthiness bucket
Significant
Frontier-lab model release with system card [lever_c_demoted from frontier_release: ic=2 ai=1.0]
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2 independent sources
Multiple independent publishers reporting the same story raises confidence that it's real and newsworthy.
Topics
model release, product
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High
Clearly on-topic for AI-industry coverage.
Story freshness
2 days old
Coverage has settled into its steady-state source set.

Full methodology in our editorial standards.

COVERAGE [2]

  1. Medium — Claude tag TIER_1 English(EN) · Magnus ·

    Claude Opus 5.5: Specs, Price, and Place in the Field

    <div class="medium-feed-item"><p class="medium-feed-image"><a href="https://medium.com/@magnus_modelflare/claude-opus-5-5-specs-price-and-place-in-the-field-67ba1be07272?source=rss------claude-5"><img src="https://cdn-images-1.medium.com/max/1440/1*qPe_HJ0_QwVovLV47P2gWA.png" wid…

  2. dev.to — LLM tag TIER_1 English(EN) · Magnus ·

    Claude Opus 5.5: Specs, Price, and Place in the Field

    <p>A source-backed account of Claude Opus 5.5: published specs, official token prices, how to read the benchmark table against Fable 5.1, Opus 5, and GPT-6 Astra, and the Modelflare groups and user prices returned on 30 September 2026.</p> <p>Claude Opus 5.5 was released on 22 Se…

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