Anthropic releases Sonnet 5.5 with 1M token context, $2/M input pricing
Anthropic has released Sonnet 5.5, the second model in its Claude 5.5 series, offering significantly faster performance than Sonnet 5 as a low-cost alternative to Opus 5.5. Pricing is set at $2 per million input tokens and $10 per million output tokens, with a 1 million token context window and 128,000 token maximum output. The Haiku 5.5 model is expected to launch soon.
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Anthropic's Sonnet 5.5 offers 30% lower cost and faster output than predecessor
A post on X by user Mr_Salio reports that Anthropic's new AI model, Sonnet 5.5, offers up to 30% lower cost per task and over 30% faster output generation compared to its predecessor, making it the fastest Sonnet model yet. The post claims Sonnet 5.5 is priced the same as OpenAI's GPT-6 Sol but is significantly faster, more efficient, and appears much stronger overall based on outputs the author has seen. The author concludes that Anthropic is seriously back in the AI race.
Read sourceAnthropic Releases Sonnet 5.5, Faster Model in Claude 5.5 Series, as Low-Cost Opus 5.5 Alternative
Anthropic has released Sonnet 5.5, the second model in its Claude 5.5 series. The new model operates significantly faster than its predecessor, Sonnet 5, and is positioned as a low-cost complementary alternative to Opus 5.5. Pricing is set at $2 per million input tokens, $10 per million output tokens, and $0.2 per million cache reads. Additionally, Anthropic announced that the Haiku 5.5 model, designed for fast, high-throughput tasks, will be launched soon.
Anthropic Sets Sonnet 5.5 Pricing at $2 per Million Input Tokens, $10 Output
Anthropic has announced the pricing for its Sonnet 5.5 AI model. The cost is set at $2 per million tokens for input, $10 per million tokens for output, and $0.2 per million tokens for cache reads. This pricing structure provides a clear cost framework for users of the model, with output tokens priced significantly higher than input tokens, and a reduced rate for cached data access. The announcement was reported by financial news source Jin10.
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Anthropic Releases Sonnet 5.5 Model, Faster and Cheaper Alternative to Opus 5.5
On September 29, Anthropic released its Sonnet 5.5 model, according to financial news outlet 财联社. The Sonnet 5.5 model runs significantly faster than its predecessor, Sonnet 5, and is positioned as a low-cost alternative and complement to the Opus 5.5 model. Pricing is set at $2 per million input tokens, $10 per million output tokens, and $0.2 per million cache reads. The company also announced that the Haiku 5.5 model, designed for fast, high-throughput tasks, will be launched soon.
Read sourceAnthropic releases Sonnet 5.5 AI model at $2 per million tokens input, $10 output
Anthropic has released a new AI model, Sonnet 5.5, according to a post on X. The model is described as only slightly worse than Opus 5.5 and in some areas even outperforms it. Pricing is set at $2 per million tokens (Mtok) input and $10 per million tokens output. The post characterizes this as a significant leap over the previous Sonnet 5 model. The announcement suggests Anthropic is aggressively developing and releasing new AI models, with Sonnet 5.5 offering a competitive price-performance ratio relative to the higher-tier Opus 5.5.
Read sourceAnthropic releases Sonnet 5.5 with 1M token context window and $2 per million input tokens
Anthropic has released Sonnet 5.5, a new AI model featuring a 1 million token context window and 128,000 token maximum output. The model has a knowledge cutoff date of January 2026. Pricing is set at $2 per million input tokens and $10 per million output tokens. The announcement, made via a post on X by user DanDr1s, highlights the low cost of the 1 million token context window at $2 as particularly notable. The post includes a link to further information.
Read sourceSonnet 5.5 pricing revealed: $2/M input, $10/M output tokens, 1M context window
A post on X by user Mr_Salio announces the pricing and specifications for a new AI model called Sonnet 5.5. The pricing is set at $2 per million input tokens and $10 per million output tokens. Cache reads are priced at $0.20 per million tokens, with cache writes costing $2.50 per million for a 5-minute duration and $4 per million for a 1-hour duration. The model features a massive 1 million token context window and a maximum output of 128,000 tokens. The author notes that the 128K output limit is 'wild' and states that Sonnet 5.5 is 'clearly being positioned for much larger coding and agentic workloads.' The post also indicates the model is expected to be released in less than 20 minutes from the time of posting.
Read sourceClaude Sonnet 5.5 pricing revealed: $2 per million input tokens, $10 per million output tokens
Pricing for Anthropic's Claude Sonnet 5.5 has been revealed in the Claude Code binary, according to a post by X user pankajkumar_dev. The model is priced at $2 per million input tokens and $10 per million output tokens. Cache reads cost $0.20 per million tokens, while cache writes are $2.50 per million for a 5-minute duration and $4 per million for a 1-hour duration. The model features a 1 million token context window and a maximum output of 128,000 tokens. The post notes that this pricing is the same as the previous Claude Sonnet 5 model. The source is a single X post without official confirmation from Anthropic at the time of reporting.
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