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ModelCap

Model decision surface

Compare AI models

Start with Claude Sonnet 5.5 and Gemma 4 31B, or choose any two current ranked language models. Compare capability evidence, price, context, provider availability, and weight access without pretending one field decides every use case.

Current public data

Claude Sonnet 5.5 vs Gemma 4 31B

Live dataset updated 10/2/2026, 11:14:31 PM UTC

Open 1200×630 evidence receipt
Factual comparison of Claude Sonnet 5.5 and Gemma 4 31B
Field
ModelCap position#5#28
Index score82.471.8
EvidenceMeasured2 public benchmark observations across 2 boardsMeasured3 public benchmark observations across 3 boards
Input / 1M$2.00$0.09
Output / 1M$10.00$0.34
Pricing statusfreshfresh
Context1M262K
Providers513
Weight accessNo linked weightsOpen weights

Decision facts

  • Claude Sonnet 5.5 is #5; Gemma 4 31B is #28 on the same current language board.
  • Index scores are 82.4 for Claude Sonnet 5.5 and 71.8 for Gemma 4 31B. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.
  • Both positions use Measured evidence.
  • Listed output price per 1M tokens is $10.00 for Claude Sonnet 5.5 and $0.34 for Gemma 4 31B. For 1,000 requests with 2,000 input and 500 output tokens each (2M input + 0.5M output), the listed-rate estimate is $9.00 for Claude Sonnet 5.5 versus $0.35 for Gemma 4 31B. Gemma 4 31B costs 96.1% less in this scenario. This excludes caching, batch discounts, prompt-length tiers, tool charges and retries; verify the selected endpoint before budgeting.
  • Published context is 1,000,000 tokens for Claude Sonnet 5.5 and 262,144 for Gemma 4 31B.
  • Weight access differs: Claude Sonnet 5.5 is none; Gemma 4 31B is open.
  • ModelCap currently lists 5 providers for Claude Sonnet 5.5 and 13 for Gemma 4 31B.

These are separate published fields, not a synthetic winner. ModelCap does not collapse price, access, context, and capability evidence into a hidden recommendation score.

Each comparison page is a permanent, shareable URL with the same live figures as this tool: ModelCap Index position, API pricing, context window, provider count, weight access and every shared benchmark board.