LLM Reference

Claude Sonnet 4.5 vs Gemma 4 E2B IT

Claude Sonnet 4.5 (2025) and Gemma 4 E2B IT (2026) are frontier reasoning models from Anthropic and Google DeepMind. Claude Sonnet 4.5 ships a 200k-token context window, while Gemma 4 E2B IT ships a 128k-token context window. On MMLU PRO, Claude Sonnet 4.5 leads by 26 pts. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.

Gemma 4 E2B IT is safer overall; choose Claude Sonnet 4.5 when reasoning depth matters.

Decision scorecard

Local evidence first
SignalClaude Sonnet 4.5Gemma 4 E2B IT
Best forreasoning-heavy apps, multimodal apps, and tool-calling agentsmultimodal apps, tool-calling agents, and provider-routed production
Decision fitCoding, RAG, and AgentsCoding, RAG, and Agents
Context window200k128k
Cheapest output$15/1M tokens-
Provider routes8 tracked2 tracked
Shared benchmarksMMLU PRO leader2 shared

Decision tradeoffs

Choose Claude Sonnet 4.5 when...
  • Claude Sonnet 4.5 holds a shared-benchmark lead on MMLU PRO, ahead by 26 points.
  • Claude Sonnet 4.5 has the larger context window for long prompts, retrieval packs, or transcript analysis.
  • Claude Sonnet 4.5 has broader tracked provider coverage for fallback and route flexibility.
  • Claude Sonnet 4.5 uniquely exposes Vision and Reasoning in local model data.
  • Local decision data tags Claude Sonnet 4.5 for Coding, RAG, and Agents.
Choose Gemma 4 E2B IT when...
  • Local decision data tags Gemma 4 E2B IT 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.

Claude Sonnet 4.5

$6,150

Cheapest tracked route/tier: Microsoft Foundry

Gemma 4 E2B IT

Unavailable

No complete token price in local provider data

Cost delta unavailable until both models have sourced input and output token prices.

Switch friction

Claude Sonnet 4.5 -> Gemma 4 E2B IT
  • Provider overlap exists on GCP Vertex AI; start route-level A/B tests there.
  • Check replacement coverage for Vision and Reasoning before moving production traffic.
Gemma 4 E2B IT -> Claude Sonnet 4.5
  • Provider overlap exists on GCP Vertex AI; start route-level A/B tests there.
  • Claude Sonnet 4.5 adds Vision and Reasoning in local capability data.

Specs

Specification
Released2025-09-292026-03-31
Context window200k128k
Parameters—2B
ArchitectureDecoder Only-
LicenseProprietaryApache 2.0OSI-approved
OpennessProprietaryOpen source
WeightsNot releasedAvailable
CodeUnknownUnknown
Commercial useCommercial use: conditionalCommercial use: permitted
Knowledge cutoff2025-122025-01

Pricing and availability

Pricing attributeClaude Sonnet 4.5Gemma 4 E2B IT
Input price
0-200,001t
$3/1M tokens
200,001t+
$6/1M tokens
-
Output price
0-200,001t
$15/1M tokens
200,001t+
$22.50/1M tokens
-
Providers
Microsoft FoundryAnthropicSnowflake CortexGCP Vertex AIAWS BedrockReplicate API
Google AI StudioGCP Vertex AI

Capabilities

CapabilityClaude Sonnet 4.5Gemma 4 E2B IT
VisionYesNo
MultimodalYesYes
ReasoningYesNo
JSON / Tool useYesYes
Structured outputsYesYes
Code executionNoNo
IDE integrationNoNo
Computer useNoNo
Parallel agentsNoNo

Benchmarks

BenchmarkClaude Sonnet 4.5Gemma 4 E2B IT
MMLU PRO86.060.0
Google-Proof Q&A83.443.4

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