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Claude 4 Sonnet
Model Release
Anthropic
Claude 4 Sonnet launched by Anthropic. Latest Sonnet with improved reasoning and tool use.
AI Release Timeline
Track model launches, capability updates, pricing changes, and benchmark milestones across the AI industry.
2025
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Claude 4 Sonnet
API Release
Anthropic
API endpoint `claude-sonnet-4-20250514` available for Claude 4 Sonnet.
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Claude 4 Sonnet
Pricing Update
Anthropic
Initial pricing set at $3.00/M input and $15.00/M output tokens.
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Claude 4 Sonnet
Vision Support
Anthropic
Claude 4 Sonnet adds native vision and image understanding capabilities.
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Claude 4 Sonnet
Function Calling
Anthropic
Claude 4 Sonnet supports function calling and structured tool use.
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Claude 4 Sonnet
Reasoning Model
Anthropic
Claude 4 Sonnet introduces extended reasoning and chain-of-thought capabilities.
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Claude 4 Sonnet
Benchmark Milestone
Anthropic
Claude 4 Sonnet achieves 96/100 coding benchmark score — top-tier performance.
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Claude 4 Opus
Model Release
Anthropic
Claude 4 Opus launched by Anthropic. Anthropic flagship for the most demanding tasks.
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Claude 4 Opus
API Release
Anthropic
API endpoint `claude-opus-4-20250514` available for Claude 4 Opus.
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Claude 4 Opus
Pricing Update
Anthropic
Initial pricing set at $15.00/M input and $75.00/M output tokens.
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Claude 4 Opus
Vision Support
Anthropic
Claude 4 Opus adds native vision and image understanding capabilities.
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Claude 4 Opus
Function Calling
Anthropic
Claude 4 Opus supports function calling and structured tool use.
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Claude 4 Opus
Reasoning Model
Anthropic
Claude 4 Opus introduces extended reasoning and chain-of-thought capabilities.
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Claude 4 Opus
Benchmark Milestone
Anthropic
Claude 4 Opus achieves 97/100 coding benchmark score — top-tier performance.
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Claude 4 Haiku
Model Release
Anthropic
Claude 4 Haiku launched by Anthropic. Next-gen Haiku with Claude 4 intelligence at low cost.
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Claude 4 Haiku
API Release
Anthropic
API endpoint `claude-haiku-4-20250514` available for Claude 4 Haiku.
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Claude 4 Haiku
Pricing Update
Anthropic
Initial pricing set at $0.80/M input and $4.00/M output tokens.
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Claude 4 Haiku
Vision Support
Anthropic
Claude 4 Haiku adds native vision and image understanding capabilities.
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Claude 4 Haiku
Function Calling
Anthropic
Claude 4 Haiku supports function calling and structured tool use.
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Claude 3.7 Sonnet
Model Release
Anthropic
Claude 3.7 Sonnet launched by Anthropic. Sonnet with extended thinking for harder problems.
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Claude 3.7 Sonnet
API Release
Anthropic
API endpoint `claude-3-7-sonnet-20250219` available for Claude 3.7 Sonnet.
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Claude 3.7 Sonnet
Pricing Update
Anthropic
Initial pricing set at $3.00/M input and $15.00/M output tokens.
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Claude 3.7 Sonnet
Vision Support
Anthropic
Claude 3.7 Sonnet adds native vision and image understanding capabilities.
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Claude 3.7 Sonnet
Function Calling
Anthropic
Claude 3.7 Sonnet supports function calling and structured tool use.
A
Claude 3.7 Sonnet
Reasoning Model
Anthropic
Claude 3.7 Sonnet introduces extended reasoning and chain-of-thought capabilities.
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Claude 3.7 Sonnet
Benchmark Milestone
Anthropic
Claude 3.7 Sonnet achieves 95/100 coding benchmark score — top-tier performance.