Claude Opus 4.7 vs Gemini 3.1 Pro Preview
Claude Opus 4.7 (2026) and Gemini 3.1 Pro Preview (2026) are frontier reasoning models from Anthropic and Google DeepMind. Claude Opus 4.7 ships a 1M-token context window, while Gemini 3.1 Pro Preview ships a 1M-token context window. On SWE-bench Verified, Claude Opus 4.7 leads by 7 pts. On pricing, Gemini 3.1 Pro Preview costs $2/1M input tokens versus $5/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
Gemini 3.1 Pro Preview is ~150% cheaper at $2/1M; pay for Claude Opus 4.7 only for coding workflow support.
Decision scorecard
Local evidence first| Signal | Claude Opus 4.7 | Gemini 3.1 Pro Preview |
|---|---|---|
| Decision fit | Coding, RAG, and Agents | Coding, RAG, and Agents |
| Context window | 1M | 1M |
| Cheapest output | $25/1M tokens | $12/1M tokens |
| Provider routes | 6 tracked | 4 tracked |
| Shared benchmarks | SWE-bench Verified leader | 5 rows |
Decision tradeoffs
- Claude Opus 4.7 leads the largest shared benchmark signal on SWE-bench Verified by 7 points.
- Claude Opus 4.7 has broader tracked provider coverage for fallback and procurement flexibility.
- Claude Opus 4.7 uniquely exposes Reasoning in local model data.
- Local decision data tags Claude Opus 4.7 for Coding, RAG, and Agents.
- Gemini 3.1 Pro Preview leads the largest shared benchmark signal on Google-Proof Q&A by 0.1 points.
- Gemini 3.1 Pro Preview has the lower cheapest tracked output price at $12/1M tokens.
- Local decision data tags Gemini 3.1 Pro Preview for Coding, RAG, and Agents.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output prices on this page.
Claude Opus 4.7
$10,250
Cheapest tracked route: Anthropic
Gemini 3.1 Pro Preview
$4,600
Cheapest tracked route: Google AI Studio
Estimated monthly gap: $5,650. Batch, cache, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on GCP Vertex AI and OpenRouter; start route-level A/B tests there.
- Gemini 3.1 Pro Preview is $13/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Reasoning before moving production traffic.
- Provider overlap exists on GCP Vertex AI, OpenRouter, and OpenRouter; start route-level A/B tests there.
- Claude Opus 4.7 is $13/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Claude Opus 4.7 adds Reasoning in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-04-16 | 2026-02-19 |
| Context window | 1M | 1M |
| Parameters | — | — |
| Architecture | decoder only | decoder only |
| License | Proprietary | Proprietary |
| Knowledge cutoff | 2026-01 | 2025-01 |
Pricing and availability
| Pricing attribute | Claude Opus 4.7 | Gemini 3.1 Pro Preview |
|---|---|---|
| Input price | $5/1M tokens | $2/1M tokens |
| Output price | $25/1M tokens | $12/1M tokens |
| Providers |
Capabilities
| Capability | Claude Opus 4.7 | Gemini 3.1 Pro Preview |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | Yes | No |
| Function calling | Yes | Yes |
| Tool use | Yes | Yes |
| Structured outputs | Yes | Yes |
| Code execution | Yes | Yes |
Benchmarks
| Benchmark | Claude Opus 4.7 | Gemini 3.1 Pro Preview |
|---|---|---|
| SWE-bench Verified | 87.6 | 80.6 |
| Google-Proof Q&A | 94.2 | 94.3 |
| MultiChallenge | 58.6 | 71.4 |
| SWE-bench Pro | 64.3 | 54.2 |
| Chatbot Arena | 1503.0 | 1493.0 |
Deep dive
On shared benchmark coverage, SWE-bench Verified has Claude Opus 4.7 at 87.6 and Gemini 3.1 Pro Preview at 80.6, with Claude Opus 4.7 ahead by 7 points; Google-Proof Q&A has Claude Opus 4.7 at 94.2 and Gemini 3.1 Pro Preview at 94.3, with Gemini 3.1 Pro Preview ahead by 0.1 points; MultiChallenge has Claude Opus 4.7 at 58.6 and Gemini 3.1 Pro Preview at 71.4, with Gemini 3.1 Pro Preview ahead by 12.8 points. The largest visible gap is 12.8 points on MultiChallenge, which matters most when that benchmark mirrors your workload. Treat isolated benchmark wins as directional, because provider routing, prompt style, and tool access can move real application results.
The capability footprint differs most on reasoning mode: Claude Opus 4.7. Both models share vision, multimodal input, function calling, and tool use, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
For cost, Claude Opus 4.7 lists $5/1M input and $25/1M output tokens, while Gemini 3.1 Pro Preview lists $2/1M input and $12/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Gemini 3.1 Pro Preview lower by about $6 per million blended tokens. Availability is 6 providers versus 4, so concentration risk also matters.
Choose Claude Opus 4.7 when coding workflow support and broader provider choice are central to the workload. Choose Gemini 3.1 Pro Preview when coding workflow support and lower input-token cost are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship.
FAQ
Which has a larger context window, Claude Opus 4.7 or Gemini 3.1 Pro Preview?
Claude Opus 4.7 supports 1M tokens, while Gemini 3.1 Pro Preview supports 1M tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Claude Opus 4.7 or Gemini 3.1 Pro Preview?
Gemini 3.1 Pro Preview is cheaper on tracked token pricing. Claude Opus 4.7 costs $5/1M input and $25/1M output tokens. Gemini 3.1 Pro Preview costs $2/1M input and $12/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Claude Opus 4.7 or Gemini 3.1 Pro Preview open source?
Claude Opus 4.7 is listed under Proprietary. Gemini 3.1 Pro Preview is listed under Proprietary. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for vision, Claude Opus 4.7 or Gemini 3.1 Pro Preview?
Both Claude Opus 4.7 and Gemini 3.1 Pro Preview expose vision. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Which is better for multimodal input, Claude Opus 4.7 or Gemini 3.1 Pro Preview?
Both Claude Opus 4.7 and Gemini 3.1 Pro Preview expose multimodal input. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Where can I run Claude Opus 4.7 and Gemini 3.1 Pro Preview?
Claude Opus 4.7 is available on Anthropic, AWS Bedrock, GCP Vertex AI, Microsoft Foundry, and OpenRouter. Gemini 3.1 Pro Preview is available on Google AI Studio, GCP Vertex AI, OpenRouter, and Replicate API. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-05-16. Data sourced from public model cards and provider documentation.