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OpenAI o1
Model Release
OpenAI
OpenAI o1 launched by OpenAI. Reasoning model using internal chain-of-thought.
AI Release Timeline
Track model launches, capability updates, pricing changes, and benchmark milestones across the AI industry.
2024
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OpenAI o1
API Release
OpenAI
API endpoint `o1` available for OpenAI o1.
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OpenAI o1
Pricing Update
OpenAI
Initial pricing set at $15.00/M input and $60.00/M output tokens.
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OpenAI o1
Function Calling
OpenAI
OpenAI o1 supports function calling and structured tool use.
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OpenAI o1
Reasoning Model
OpenAI
OpenAI o1 introduces extended reasoning and chain-of-thought capabilities.
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OpenAI o1
Benchmark Milestone
OpenAI
OpenAI o1 achieves 96/100 reasoning benchmark score — top-tier performance.
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GPT-4o Mini
Model Release
OpenAI
GPT-4o Mini launched by OpenAI. Cost-efficient small model for high-volume applications.
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GPT-4o Mini
API Release
OpenAI
API endpoint `gpt-4o-mini` available for GPT-4o Mini.
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GPT-4o Mini
Pricing Update
OpenAI
Initial pricing set at $0.15/M input and $0.60/M output tokens.
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GPT-4o Mini
Vision Support
OpenAI
GPT-4o Mini adds native vision and image understanding capabilities.
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GPT-4o Mini
Function Calling
OpenAI
GPT-4o Mini supports function calling and structured tool use.
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GPT-4o
Model Release
OpenAI
GPT-4o launched by OpenAI. Flagship multimodal model balancing speed, intelligence, and cost.
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GPT-4o
API Release
OpenAI
API endpoint `gpt-4o` available for GPT-4o.
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GPT-4o
Pricing Update
OpenAI
Initial pricing set at $2.50/M input and $10.00/M output tokens.
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GPT-4o
Vision Support
OpenAI
GPT-4o adds native vision and image understanding capabilities.
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GPT-4o
Audio Support
OpenAI
GPT-4o supports audio input and multimodal voice workflows.
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GPT-4o
Function Calling
OpenAI
GPT-4o supports function calling and structured tool use.
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GPT-4o
Benchmark Milestone
OpenAI
GPT-4o achieves 95/100 multimodal benchmark score — top-tier performance.