Observed Signal · Mar 6, 2025 · Product Launch · Source: Trending Topics · Impact: 4/5 · Sentiment: Neutral
OpenAI Launches GPT-4.5 With Dramatically Higher API Prices
OpenAI has begun rolling out the GPT-4.5 research preview to ChatGPT Plus subscribers worldwide, who pay €23 per month. The company describes GPT-4.5 as its largest and best chat model, offering more natural, warm, and intuitive conversations, though it does not surpass the reasoning models o1 and o3. In the Chatbot Arena user ranking, GPT-4.5 nearly reached the top but remains behind xAI's Grok-3, while clearly outperforming models from Google, DeepSeek, Alibaba, and Anthropic. Perplexity has integrated GPT-4.5 into its Pro tier but with strict daily query limits. The reason for the restrictions is the drastically higher API pricing: GPT-4.5 costs $75 per million input tokens and $150 per million output tokens, compared to $2.50 and $10 respectively for GPT-4o.
OpenAI's flagship GPT-4.5 launch introduces drastically higher API prices ($75/$150 per million tokens vs $2.50/$10 for GPT-4o), directly affecting the cost base of AI-powered advertising, creative generation, and marketing automation tools across the AdTech ecosystem.
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Key Takeaways & Evidence Grounding
- OpenAI began the global rollout of the GPT-4.5 research preview to ChatGPT Plus subscribers, who pay €23 per month.
- GPT-4.5 API access costs $75 per 1 million input tokens and $150 per 1 million output tokens.
- GPT-4o API access costs $2.50 per 1 million input tokens and $10 per 1 million output tokens.
- In the Chatbot Arena user ranking, GPT-4.5 trails xAI's Grok-3 but outperforms models from Google, DeepSeek, Alibaba, and Anthropic.
- Perplexity integrated GPT-4.5 into its Pro subscription with strictly limited daily queries.
Connected Companies & Entities
7 Entities mapped“OpenAI hat mit dem Rollout der Research Preview für GPT-4.5 für Plus-Abonnent:innen weltweit begonnen....”
“Zwar hat etwa auch Perplexity GPT-4.5 bereits in die Version für seine zahlenden Pro-Nutzer:innen verbaut, gibt dort aber nur eingeschränkte...”
“lässt aber die Top-Modelle von Google, DeepSeek, Alibaba oder Anthropic teilweise deutlich hinter sich...”
“lässt aber die Top-Modelle von Google, DeepSeek, Alibaba oder Anthropic teilweise deutlich hinter sich...”
“lässt aber die Top-Modelle von Google, DeepSeek, Alibaba oder Anthropic teilweise deutlich hinter sich...”
“lässt aber die Top-Modelle von Google, DeepSeek, Alibaba oder Anthropic teilweise deutlich hinter sich...”
Ontology Mapping & Concepts
Related Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
Unlocking Claude's Full Value: Plans, Workflows, and Setup
This article analyzes the economics of Anthropic's Claude subscription plans, comparing them to OpenAI's offerings. SemiAnalysis found a $200 Claude Max plan provides about $11,700 worth of Claude Opus 5.5 usage at API prices, versus roughly $2,100 for OpenAI's equivalent. Most subscribers use only a small fraction of their allowance, making the plans profitable for Anthropic. Recent product changes, including the merger of Cowork into Claude chat, new model versions (Opus 5.5, Sonnet 5.5, Haiku 5.5), and monthly API credits on Max and Team plans, make it easier to use the full allowance. The article provides a comprehensive guide with model routing tables, a map of the Claude stack, a 5-layer operating system, and 17 workflows to help users maximize their subscription value.
Hone Raises $60M for AI Agents
Hone, a San Francisco-based AI startup founded by Austrian Moritz Stephan, has raised a $60 million seed round led by Benchmark and Index Ventures, valuing the company at $285 million. Hone develops 'Engines'—autonomous AI agents that manage entire business goals over weeks or months, learning a company's systems and processes while operating under guardrails like simulated decisions and human approval for sensitive actions. Early customers include Cognition and Modal. The funding will support expansion in the competitive AI agent market, where rivals include Decagon, Sierra, and Salesforce's Agentforce. Co-founders Oliver Brady and Carlo Kobe bring experience from Harvey, Mercor, and Fizz. The company has not yet disclosed revenue or customer results.
Hone Raises $60M for AI Agents
Austrian founder Moritz Stephan's AI startup Hone, based in San Francisco, has raised $60 million in a seed round led by Benchmark and Index Ventures. The company builds autonomous AI agents, or 'engines', that manage entire business goals over weeks or months, such as improving customer retention or reducing procurement costs. Hone is valued at $285 million. Early customers include AI coding startup Cognition and AI infrastructure firm Modal. Investors Peter Fenton (Benchmark) and Shardul Shah (Index) join the board, with Elad Gil and SV Angel also participating. The funding will be used to scale operations and acquire more enterprise clients.
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