LLM Reference

Claude Opus 4.5 vs Ling-2.6-Flash

Claude Opus 4.5 (2025) and Ling-2.6-Flash (2026) are frontier reasoning models from Anthropic and InclusionAI. Claude Opus 4.5 ships a 200k-token context window, while Ling-2.6-Flash ships a 262k-token context window. On pricing, Ling-2.6-Flash costs $0.01/1M input tokens versus $5/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.

Ling-2.6-Flash is ~49900% cheaper at $0.01/1M; pay for Claude Opus 4.5 only for coding workflow support.

Decision scorecard

Local evidence first
SignalClaude Opus 4.5Ling-2.6-Flash
Best forreasoning-heavy apps, multimodal apps, and tool-calling agentstool-calling agents and provider-routed production
Decision fitCoding, RAG, and AgentsRAG, Agents, and Long context
Context window200k262k
Cheapest output$25/1M tokens$0.03/1M tokens
Provider routes6 tracked2 tracked
Shared benchmarks0 shared0 shared

Decision tradeoffs

Choose Claude Opus 4.5 when...
  • Claude Opus 4.5 has broader tracked provider coverage for fallback and route flexibility.
  • Claude Opus 4.5 uniquely exposes Vision, Multimodal, and Reasoning in local model data.
  • Local decision data tags Claude Opus 4.5 for Coding, RAG, and Agents.
Choose Ling-2.6-Flash when...
  • Ling-2.6-Flash has the larger context window for long prompts, retrieval packs, or transcript analysis.
  • Ling-2.6-Flash has the lower cheapest tracked output price at $0.03/1M tokens.
  • Local decision data tags Ling-2.6-Flash for RAG, Agents, and Long context.

Monthly cost at traffic

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

Lower estimate Ling-2.6-Flash

Claude Opus 4.5

$10,250

Cheapest tracked route/tier: Microsoft Foundry

Ling-2.6-Flash

$15.50

Cheapest tracked route/tier: OpenRouter

Estimated monthly gap: $10,235. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.

Switch friction

Claude Opus 4.5 -> Ling-2.6-Flash
  • Provider overlap exists on OpenRouter; start route-level A/B tests there.
  • Ling-2.6-Flash is $24.97/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
  • Check replacement coverage for Vision, Multimodal, and Reasoning before moving production traffic.
Ling-2.6-Flash -> Claude Opus 4.5
  • Provider overlap exists on OpenRouter; start route-level A/B tests there.
  • Claude Opus 4.5 is $24.97/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
  • Claude Opus 4.5 adds Vision, Multimodal, and Reasoning in local capability data.

Specs

Specification
Released2025-11-012026-04-21
Context window200k262k
Parameters—104B (7.4B activated)
ArchitectureDecoder OnlyMixture of Experts
LicenseProprietaryApache 2.0OSI-approved
OpennessProprietaryOpen source
WeightsNot releasedUnknown
CodeUnknownUnknown
Commercial useCommercial use: conditionalCommercial use: permitted
Knowledge cutoff2025-12-

Pricing and availability

Pricing attributeClaude Opus 4.5Ling-2.6-Flash
Input price$5/1M tokens$0.01/1M tokens
Output price$25/1M tokens$0.03/1M tokens
Providers
Microsoft FoundryAnthropicGCP Vertex AIAWS BedrockOpenRouterVercel AI Gateway
OpenRouterNovita AI

Capabilities

CapabilityClaude Opus 4.5Ling-2.6-Flash
VisionYesNo
MultimodalYesNo
ReasoningYesNo
JSON / Tool useYesYes
Structured outputsYesYes
Code executionYesNo
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

No shared benchmark scores are currently available for this pair.

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