API pricing

OpenAI has launched a preview of 'Ultrafast' mode for GPT-5.6 Sol, delivering up to 750 output tokens per second through Cerebras inference hardware. The feature is initially limited to select API customers as part of a tiered speed pricing structure.

DeepSeek will raise API output token pricing roughly fourfold starting August 16, introducing peak and off-peak rates for its V4 Pro and V4 Flash models. Despite the increase, DeepSeek remains cheaper than competitors like OpenAI's GPT-5.6 Sol and Moonshot's Kimi K3.

DeepSeek released build V4-Pro-0813 with major agent benchmark gains, open-sourced its Deepseek Harness agent framework under MIT license, and announced API price increases of up to 52% effective August 16.

xAI released Grok 4.6, claiming intelligence on par with OpenAI's GPT-5.6 Sol and just one point behind Anthropic's Claude Fable 5 Max on the Artificial Analysis Intelligence Index. The model is priced at $2 per million input tokens and $6 per million output tokens, with a faster variant at double that rate.

Mistral has made regional inference generally available, letting customers route requests through EU or US servers for a 10 percent surcharge, while also launching a paid Priority Tier that charges 1.75x standard pricing for faster processing during peak traffic. Both offerings carry significant limitations on what data and features they actually cover.

OpenAI cut GPT-5.6 Luna pricing by 80 percent to $0.20 per million input tokens and $1.20 per million output tokens, while Terra dropped 20 percent to $2/$12. The company attributes the cuts to infrastructure efficiency gains and mounting price competition, particularly from Chinese providers.

Anthropic released Claude Opus 5 on July 24, its fourth model launch in under two months, priced at $5 per million input tokens and $25 per million output tokens. The company claims the model matches or beats its flagship Fable 5 on most coding and knowledge-work benchmarks while posting the lowest deception rate of any model it has shipped.

Anthropic has released Claude Opus 5, upgrading from Opus 4.8, with pricing held at $5 per million input tokens and $25 per million output tokens. The company claims the model approaches the intelligence of its flagship Fable 5 model at half the cost.

OpenAI released GPT-5.5 on April 23, its first retrained base model since GPT-4.5, scoring 82.7% on Terminal-Bench 2.0 versus GPT-5.4's 75.1% and Claude Opus 4.7's 69.4%. API pricing is set at $5 per million input tokens and $30 per million output tokens, exactly double GPT-5.4 rates.