Google Gemini API vs Anthropic API
Gemini 2.5 Pro, Flash, Flash-Lite — multimodal + 2M context
vs. API for Claude — frontier models for chat, tool use, agents, and long-context reasoning
Pricing tiers
Google Gemini API
Free Tier (AI Studio)
Generous free tier with rate limits. Good for dev + prototyping. Data may be used to improve Google products.
Free
Paid API (Gemini API)
Pay-as-you-go per-token. Data NOT used for training.
$0 base (usage-based)
Vertex AI (GCP)
Enterprise deployment via Google Cloud. Same pricing structure + GCP features (IAM, VPC-SC, CMEK).
$0 base (usage-based)
Gemini Enterprise
Custom. Gemini 2.5 Deep Think model access + Google Workspace + Agentspace.
Custom
Anthropic API
Opus 4.7 — usage
Input $5 / output $25 / cache-write $6.25 / cache-read $0.50 per 1M tokens. Batch = 50% off.
Custom
Sonnet 4.6 — usage
Input $3 / output $15 / cache-write $3.75 / cache-read $0.30 per 1M tokens. Batch = 50% off.
Custom
Haiku 4.5 — usage
Input $1 / output $5 / cache-write $1.25 / cache-read $0.10 per 1M tokens. Batch = 50% off.
Custom
Free-tier quotas head-to-head
Comparing free-tier on Google Gemini API vs opus-4-7 on Anthropic API.
| Metric | Google Gemini API | Anthropic API |
|---|---|---|
| discount batch | — | 50 % off |
Features
Google Gemini API · 11 features
- Batch API — 50% discount for async processing.
- Code Execution — Python code interpreter tool (sandboxed).
- Context Caching — Cache system instructions + tools for up to 90% savings.
- File API — Upload large files (up to 2 GB) for multimodal prompts.
- Function Calling — JSON schema-based tool calling. Parallel supported.
- generateContent API — Core generation endpoint.
- Grounding with Search — Augment answers with Google Search results. Fact-checked citations returned.
- Model Tuning — Supervised fine-tuning via AI Studio.
- Multimodal Live API — Bidirectional streaming voice + video (WebSocket).
- Safety Settings — Configurable thresholds for harm categories.
- streamGenerateContent — Streaming variant with SSE.
Anthropic API · 0 features
Developer interfaces
| Kind | Google Gemini API | Anthropic API |
|---|---|---|
| CLI | — | Claude Code CLI |
| SDK | @google/genai, google-genai-go, google-genai (Python) | Go SDK, Java SDK, Python SDK, Ruby SDK, TypeScript SDK (@anthropic-ai/sdk) |
| REST | Gemini REST API, Vertex AI Endpoint | AWS Bedrock, Google Vertex AI, Microsoft Azure AI, REST API (Messages + Agents) |
| MCP | Gemini MCP | — |
Staxly is an independent catalog of developer platforms. Outbound links to Google Gemini API and Anthropic API are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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