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Claude Sonnet 4.5 (latest)

anthropic/claude-sonnet-4-5

Balanced Claude model for coding, analysis, agent workflows, and cost control

Input modalitiesT
Output modalitiesT
Source-linkedclaude-sonnetClosed weightsReleased 2025-09-29
Report data
Context window200K
Maximum output64K
Provider offers14
Knowledge cutoff2025-07-31
Capabilities

What this model supports

ReasoningYes
Tool callingYes
Structured outputNo
AttachmentsYes
Temperature controlYes
Open weightsNo
Creator
Anthropic
Family
claude-sonnet
Modalities
Image, Pdf, Text
License
Not documented
Release date
2025-09-29
Model ID
anthropic/claude-sonnet-4-5
Market availability

Provider pricing

Report price →
Providers offering Claude Sonnet 4.5 (latest)
ProviderProvider model IDContextInput / 1MOutput / 1MCached / 1MFeaturesAll pricing
Snowflake Cortex logoSnowflake Cortexclaude-sonnet-4-5200KR T ·
View
{}
AnyAPI logoAnyAPIanthropic/claude-sonnet-4-5200KR T ·
View
{}
Anthropic logoAnthropicclaude-sonnet-4-51M$3$15$0.3R T S
View
{
  "cache_read": 0.3,
  "cache_write": 3.75,
  "input": 3,
  "output": 15
}
OpenRouter logoOpenRouteranthropic/claude-sonnet-4.51M$3$15$0.3R T S
View
{
  "cache_read": 0.3,
  "cache_write": 3.75,
  "context_over_200k": {
    "cache_read": 0.6,
    "cache_write": 7.5,
    "input": 6,
    "output": 22.5
  },
  "input": 3,
  "output": 15,
  "tiers": [
    {
      "cache_read": 0.6,
      "cache_write": 7.5,
      "input": 6,
      "output": 22.5,
      "tier": {
        "size": 200000,
        "type": "context"
      }
    }
  ]
}
Databricks logoDatabricksdatabricks-claude-sonnet-4-5200K$3$15$0.3R T ·
View
{
  "cache_read": 0.3,
  "cache_write": 3.75,
  "input": 3,
  "output": 15
}
Cloudflare AI Gateway logoCloudflare AI Gatewayanthropic/claude-sonnet-4-5200K$3$15$0.3R T ·
View
{
  "cache_read": 0.3,
  "cache_write": 3.75,
  "input": 3,
  "output": 15
}
Pioneer logoPioneerclaude-sonnet-4-51M$3$15$0.3R T ·
View
{
  "cache_read": 0.3,
  "cache_write": 3.75,
  "input": 3,
  "output": 15
}
Requesty logoRequestyanthropic/claude-sonnet-4-51M$3$15$0.3R T ·
View
{
  "cache_read": 0.3,
  "cache_write": 3.75,
  "input": 3,
  "output": 15
}
NEAR AI Cloud logoNEAR AI Cloudanthropic/claude-sonnet-4-5200K$3$15.5$0.3R T ·
View
{
  "cache_read": 0.3,
  "cache_write": 3.75,
  "input": 3,
  "output": 15.5
}
Perplexity Agent logoPerplexity Agentanthropic/claude-sonnet-4-5200K$3$15$0.3R T ·
View
{
  "cache_read": 0.3,
  "input": 3,
  "output": 15
}
Neon logoNeonclaude-sonnet-4-5200K$3$15$0.3R T ·
View
{
  "cache_read": 0.3,
  "cache_write": 3.75,
  "input": 3,
  "output": 15
}
OrcaRouter logoOrcaRouteranthropic/claude-sonnet-4.5200K$3$15$0.3R T ·
View
{
  "cache_read": 0.3,
  "cache_write": 3.75,
  "input": 3,
  "output": 15
}
GitHub Copilot logoGitHub Copilotclaude-sonnet-4.5200K$3$15$0.3R T ·
View
{
  "cache_read": 0.3,
  "cache_write": 3.75,
  "input": 3,
  "output": 15
}
LLM Gateway logoLLM Gatewayclaude-sonnet-4-5200K$3$15$0.3R T ·
View
{
  "cache_read": 0.3,
  "cache_write": 3.75,
  "input": 3,
  "output": 15
}
Evidence

Published benchmark results

SWE-Bench Pro vs top 8 models
Claude Fable 5
80.3
Claude Opus 4.8
69.2
Grok 4.5
64.7
GPT-5.6 Sol
64.6
Claude Opus 4.7
64.3
GPT-5.6 Terra
63.4
Claude Sonnet 5
63.2
Claude Sonnet 4.5 (latest)
43.6