Claude Haiku 4.5 vs Nano Banana Pro (Gemini 3 Pro Image)
Claude Haiku 4.5 (2025) and Nano Banana Pro (Gemini 3 Pro Image) (2026) are frontier reasoning models from Anthropic and Google DeepMind. Claude Haiku 4.5 ships a 200k-token context window, while Nano Banana Pro (Gemini 3 Pro Image) ships a 66k-token context window. On pricing, Claude Haiku 4.5 costs $0.80/1M input tokens versus $2/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.
Claude Haiku 4.5 is ~150% cheaper at $0.80/1M; pay for Nano Banana Pro (Gemini 3 Pro Image) only for reasoning depth.
Decision scorecard
Local evidence first| Signal | Claude Haiku 4.5 | Nano Banana Pro (Gemini 3 Pro Image) |
|---|---|---|
| Best for | multimodal apps, tool-calling agents, and provider-routed production | reasoning-heavy apps, multimodal apps, and tool-calling agents |
| Decision fit | Coding, RAG, and Agents | Agents, Vision, and JSON / Tool use |
| Context window | 200k | 66k |
| Cheapest output | $4/1M tokens | $120/1M tokens |
| Provider routes | 8 tracked | 1 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Claude Haiku 4.5 has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Claude Haiku 4.5 has the lower cheapest tracked output price at $4/1M tokens.
- Claude Haiku 4.5 has broader tracked provider coverage for fallback and procurement flexibility.
- Claude Haiku 4.5 uniquely exposes Function calling and Code execution in local model data.
- Local decision data tags Claude Haiku 4.5 for Coding, RAG, and Agents.
- Nano Banana Pro (Gemini 3 Pro Image) uniquely exposes Reasoning in local model data.
- Local decision data tags Nano Banana Pro (Gemini 3 Pro Image) for Agents, Vision, and JSON / Tool use.
Monthly cost at traffic
Estimate token spend from the cheapest tracked input and output route or tier on this page.
Claude Haiku 4.5
$1,640
Cheapest tracked route/tier: AWS Bedrock
Nano Banana Pro (Gemini 3 Pro Image)
$31,600
Cheapest tracked route/tier: Google AI Studio
Estimated monthly gap: $29,960. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- No overlapping tracked provider route is sourced for Claude Haiku 4.5 and Nano Banana Pro (Gemini 3 Pro Image); plan for SDK, billing, or endpoint changes.
- Nano Banana Pro (Gemini 3 Pro Image) is $116/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Function calling and Code execution before moving production traffic.
- Nano Banana Pro (Gemini 3 Pro Image) adds Reasoning in local capability data.
- No overlapping tracked provider route is sourced for Nano Banana Pro (Gemini 3 Pro Image) and Claude Haiku 4.5; plan for SDK, billing, or endpoint changes.
- Claude Haiku 4.5 is $116/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Reasoning before moving production traffic.
- Claude Haiku 4.5 adds Function calling and Code execution in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-10-01 | 2026-05-28 |
| Context window | 200k | 66k |
| Parameters | — | — |
| Architecture | decoder only | decoder only |
| License | Proprietary | Proprietary |
| Knowledge cutoff | 2025-02 | 2025-01 |
Pricing and availability
| Pricing attribute | Claude Haiku 4.5 | Nano Banana Pro (Gemini 3 Pro Image) |
|---|---|---|
| Input price | $0.80/1M tokens | $2/1M tokens |
| Output price | $4/1M tokens | $120/1M tokens |
| Providers |
Capabilities
| Capability | Claude Haiku 4.5 | Nano Banana Pro (Gemini 3 Pro Image) |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | No | Yes |
| Function calling | Yes | No |
| Tool use | Yes | Yes |
| Structured outputs | Yes | Yes |
| Code execution | Yes | No |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark rows are currently sourced for this pair.
Deep dive
The capability footprint differs most on reasoning mode: Nano Banana Pro (Gemini 3 Pro Image), function calling: Claude Haiku 4.5, and code execution: Claude Haiku 4.5. Both models share vision, multimodal input, tool use, and structured outputs, 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 Haiku 4.5 lists $0.80/1M input and $4/1M output tokens on the cheapest tracked provider, while Nano Banana Pro (Gemini 3 Pro Image) lists $2/1M input and $120/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Claude Haiku 4.5 lower by about $35.64 per million blended tokens. Availability is 8 providers versus 1, so concentration risk also matters.
Choose Claude Haiku 4.5 when coding workflow support, larger context windows, and lower input-token cost are central to the workload. Choose Nano Banana Pro (Gemini 3 Pro Image) when reasoning depth 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 Haiku 4.5 or Nano Banana Pro (Gemini 3 Pro Image)?
Claude Haiku 4.5 supports 200k tokens, while Nano Banana Pro (Gemini 3 Pro Image) supports 66k 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 Haiku 4.5 or Nano Banana Pro (Gemini 3 Pro Image)?
Claude Haiku 4.5 is cheaper on tracked token pricing. Claude Haiku 4.5 costs $0.80/1M input and $4/1M output tokens. Nano Banana Pro (Gemini 3 Pro Image) costs $2/1M input and $120/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Claude Haiku 4.5 or Nano Banana Pro (Gemini 3 Pro Image) open source?
Claude Haiku 4.5 is listed under Proprietary. Nano Banana Pro (Gemini 3 Pro Image) 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 Haiku 4.5 or Nano Banana Pro (Gemini 3 Pro Image)?
Both Claude Haiku 4.5 and Nano Banana Pro (Gemini 3 Pro Image) 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 Haiku 4.5 or Nano Banana Pro (Gemini 3 Pro Image)?
Both Claude Haiku 4.5 and Nano Banana Pro (Gemini 3 Pro Image) 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 Haiku 4.5 and Nano Banana Pro (Gemini 3 Pro Image)?
Claude Haiku 4.5 is available on Microsoft Foundry, Anthropic, Snowflake Cortex, AWS Bedrock, and GCP Vertex AI. Nano Banana Pro (Gemini 3 Pro Image) is available on Google AI Studio. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-05-31. Data sourced from public model cards and provider documentation.