Anthropic model

Claude Sonnet 5.5

Claude Sonnet 5.5 is a Anthropic model listed in the NextModel catalog for image understanding, multimodal chat workloads. Its listed price is $2 / 1M tokens input and $10 / 1M tokens output, with a 1M token context window.

Read quickstartEstimate cost
AnthropicPlatform curatedCatalog
ThinkingFunction CallingVision
Input price$2 / 1M tokens
Output price$10 / 1M tokens
Context length1M tokens
Max output8.2k tokens

What is Claude Sonnet 5.5 in NextModel?

Claude Sonnet 5.5 is a Anthropic model listed in the NextModel catalog for image understanding, multimodal chat workloads. Its listed price is $2 / 1M tokens input and $10 / 1M tokens output, with a 1M token context window.

Claude Sonnet 5.5 via NextModel: 1M-token context; $2 / 1M tokens in / $10 / 1M tokens out per 1M tokens. Capabilities: streaming, tool, json.

Best use cases

  • image understanding
  • multimodal chat

OpenAI-compatible code example

request.sh
curl https://api.nextmodel.app/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $NEXTMODEL_API_KEY" \
  -d '{"model":"anthropic/claude-sonnet-5.5","messages":[{"role":"user","content":"Reply with OK."}]}'

Switching models only changes the model field.

Try it in the playground

Similar alternatives

AnthropicCatalogHealthytypical

Claude Opus 5.5New

Claude Opus 5.5 via NextModel: 1M-token context; $4 / 1M tokens in / $20 / 1M tokens out per 1M tokens. Capabilities: streaming, tool, json.

$4 / 1M tokensInput$20 / 1M tokensOutput1MContext
Best forimage understanding, multimodal chat
StreamingTool callingJSON modeVision
Platform curatedCurated and maintained in the NextModel catalog
View details
AnthropicCatalogHealthyfast

Claude Haiku 5.5New

Claude Haiku 5.5 via NextModel: 1M-token context; Starting at $0.1 / 1M tokens in / $0.5 / 1M tokens out per 1M tokens. Capabilities: streaming, tool, json.

Starting at $0.1 / 1M tokensInput$0.5 / 1M tokensOutput1MContext
Best forimage understanding, multimodal chat
StreamingTool callingJSON modeVision
Platform curatedCurated and maintained in the NextModel catalog
View details
OpenAICatalogHealthytypical

GPT‑6 LunaNew

GPT‑6 Luna via NextModel: 1M-token context; Starting at $0.1 / 1M tokens in / $0.5 / 1M tokens out per 1M tokens. Capabilities: streaming, tool, json.

Starting at $0.1 / 1M tokensInput$0.5 / 1M tokensOutput1MContext
Best forimage understanding, multimodal chat
StreamingTool callingJSON modeVision
Platform curatedCurated and maintained in the NextModel catalog
View details

Compare Claude Sonnet 5.5

Claude Sonnet 5.5 vs Claude Opus 5.5Claude Sonnet 5.5 vs Claude Haiku 5.5Claude Sonnet 5.5 vs GPT‑6 LunaClaude Sonnet 5.5 vs GPT‑6 SolClaude Sonnet 5.5 vs Claude Fable 5.1

Reading

Articles that explain Claude Sonnet 5.5

FAQ

Claude Sonnet 5.5 API questions

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