LLM Reference

Claude Opus 4.7 vs Claude Sonnet 4.5

Claude Opus 4.7 (2026) and Claude Sonnet 4.5 (2025) are frontier-tier reasoning models from Anthropic. Claude Opus 4.7 ships a 1m-token context window, while Claude Sonnet 4.5 ships a 200k-token context window. On SWE-bench Verified, Claude Opus 4.7 leads by 10.4 pts. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.

Claude Opus 4.7 fits 5x more tokens; pick it for long-context work and Claude Sonnet 4.5 for tighter calls.

Decision scorecard

Local evidence first
SignalClaude Opus 4.7Claude Sonnet 4.5
Best forreasoning-heavy apps, multimodal apps, and tool-calling agentsreasoning-heavy apps, multimodal apps, and tool-calling agents
Decision fitCoding, RAG, and AgentsCoding, RAG, and Agents
Context window1m200k
Cheapest output$25/1M tokens$15/1M tokens
Provider routes6 tracked8 tracked
Shared benchmarksSWE-bench Verified leader2 shared

Decision tradeoffs

Choose Claude Opus 4.7 when...
  • Claude Opus 4.7 holds a shared-benchmark lead on SWE-bench Verified, ahead by 10.4 points.
  • Claude Opus 4.7 has the larger context window for long prompts, retrieval packs, or transcript analysis.
  • Claude Opus 4.7 uniquely exposes Code execution in local model data.
  • Local decision data tags Claude Opus 4.7 for Coding, RAG, and Agents.
Choose Claude Sonnet 4.5 when...
  • Claude Sonnet 4.5 has the lower cheapest tracked output price at $15/1M tokens.
  • Claude Sonnet 4.5 has broader tracked provider coverage for fallback and route flexibility.
  • Local decision data tags Claude Sonnet 4.5 for Coding, RAG, and Agents.

Monthly cost at traffic

Estimate token spend from the cheapest tracked input and output route or tier on this page.

Lower estimate Claude Sonnet 4.5

Claude Opus 4.7

$10,250

Cheapest tracked route/tier: Anthropic

Claude Sonnet 4.5

$6,150

Cheapest tracked route/tier: Microsoft Foundry

Estimated monthly gap: $4,100. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.

Switch friction

Claude Opus 4.7 -> Claude Sonnet 4.5
  • Provider overlap exists on Microsoft Foundry, Anthropic, and GCP Vertex AI; start route-level A/B tests there.
  • Claude Sonnet 4.5 is $10/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
  • Check replacement coverage for Code execution before moving production traffic.
Claude Sonnet 4.5 -> Claude Opus 4.7
  • Provider overlap exists on Anthropic, AWS Bedrock, and GCP Vertex AI; start route-level A/B tests there.
  • Claude Opus 4.7 is $10/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
  • Claude Opus 4.7 adds Code execution in local capability data.

Specs

Specification
Released2026-04-162025-09-29
Context window1m200k
Parameters——
ArchitectureDecoder OnlyDecoder Only
LicenseProprietaryProprietary
OpennessProprietaryProprietary
WeightsNot releasedNot released
CodeUnknownUnknown
Commercial useCommercial use: conditionalCommercial use: conditional
Knowledge cutoff2026-012025-12

Pricing and availability

Pricing attributeClaude Opus 4.7Claude Sonnet 4.5
Input price$5/1M tokens
0-200,001t
$3/1M tokens
200,001t+
$6/1M tokens
Output price$25/1M tokens
0-200,001t
$15/1M tokens
200,001t+
$22.50/1M tokens
Providers
AnthropicAWS BedrockGCP Vertex AIMicrosoft FoundryOpenRouterVercel AI Gateway
Microsoft FoundryAnthropicSnowflake CortexGCP Vertex AIAWS BedrockReplicate API

Capabilities

CapabilityClaude Opus 4.7Claude Sonnet 4.5
VisionYesYes
MultimodalYesYes
ReasoningYesYes
JSON / Tool useYesYes
Structured outputsYesYes
Code executionYesNo
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

BenchmarkClaude Opus 4.7Claude Sonnet 4.5
SWE-bench Verified87.677.2
Google-Proof Q&A94.283.4

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Last reviewed: 2026-07-26. Data sourced from public model cards and provider documentation.