Claude Sonnet 4.5
anthropic/claude-sonnet-4.5- Anthropic
- Family · Claude Sonnet 4
- Text · Image · File → Text
- Tools · JSON · Vision
Not on OSMEXO yet
Spec & list price
Context1M
Max output64K
Input / 1M$3.00
Output / 1M$15.005× input
Usage
Tokens / day45.5B▲ 18% 7d
Usage rank#50
Requests / day2.0M
Tool calls / req0.07
Per request · 30 days
Avg input14.1Kabout median
Avg output4130.6× median
Cache hit56%0.8× median
Reasoning share2.8%0.1× median
Tool-call failures2.5%1.3× median
Consumption
Peak 55.8B 31 OctLow 13.1B 27 SepRank today #50
News & trends
4 mentions this week ▼ 33%this model · videos, posts, articles · 30 days
Trending · 14 days
- App Using Claude Sonnet 4.5? Anthropic Retires It on November 30, 202615 views
- 【実測】新claude-sonnet-4.5に議事録要約を任せたら2秒→4秒392 views
News · latest from Anthropic
- Claude Opus 5.5 Can Draw Permit-Level Architectural Drawingsstephenjgallagher.substack.com · 2 Nov
- GPT-6.1 Terra vs. Claude Opus 5.5: Cheaper and faster in three tests at maxthenewstack.io · 2 Nov
- Claude Opus 5.5 and Claude Sonnet 5.5 are now available in Google AntigravityGoogle Cloud · 20 Oct
- GLM-5.3 vs. Claude Fable 5 on DeepSWE: Cost, Coding, and RoutingTogether AI · 21 Aug
Speed
Output speed#277/33438 tok/s1.7× slower than median
Fastest provider58 tok/sbest of 6 providers
First token#2051.35 s1.3× longer than median
Technical details
- Tokenizer
- Claude
- Knowledge cutoff
- 2025-01-31
- Moderation
- moderated
Request parameters 12
- tools
- tool_choice
- response_format
- structured_outputs
- reasoning
- include_reasoning
- temperature
- top_p
- top_k
- max_tokens
+2 more
- max_completion_tokens
- stop
When to use
Best for
- General coding assistance
- Long document question answering
- Image and file analysis
- Tool-calling agents with structured output
Think twice for
- Hardest autonomous agent tasks
- High-volume simple chat (cheaper options exist)
- New builds where newer Sonnet releases fit better
Research papers
- The Geometry of Emotion Representations Across Scale, Depth, and Instruction Tuning26 Oct
- UniGuard: Multi-View Guardrail Learning for Cross-Interface Safety Generalization22 Oct
- OmniSimulator: Aligning Small Language Models for Authentic Heterogeneous Behavior Modeling21 Oct
- Steering Black-Box Large Language Model Agents with Pitfall Anticipation World Model21 Oct
- Recursive Self-Improvement on a Budget: Scoring Code Edits Before They Run21 Oct
- EGI-BENCH: An Enterprise General Intelligence Benchmark Suite19 Oct
- How Well Can LLMs Verbalize Mathematical Formulas? A Multi-Domain Evaluation17 Oct
- Artifact Distillation: Training-Free Transfer from Frontier to Small Language Models12 Oct
Social
Most watched and discussed · 90 days
- 【実測】新claude-sonnet-4.5に議事録要約を任せたら2秒→4秒今日のAIニュース · 392 views · 24 Oct
- App Using Claude Sonnet 4.5? Anthropic Retires It on November 30, 2026Ctrl+Z Therapy · 15 views · 27 Oct
- Claude Sonnet 4.5 retires 30 Nov: the switch is cheaper, with a catchFewertools · 12 views · 29 Oct
- Claude Sonnet 4.5 retires 30 Nov: the switch is cheaper, with a catch #ShortsFewertools · 1 views · 29 Oct
Same family
Claude Sonnet 4- 30.1
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