Nano Banana (Gemini 2.5 Flash Image) vs GLM-5
Nano Banana (Gemini 2.5 Flash Image) (2025) and GLM-5 (2026) are frontier reasoning models from Google DeepMind and Zhipu AI. Nano Banana (Gemini 2.5 Flash Image) ships a 33k-token context window, while GLM-5 ships a 200k-token context window. On pricing, Nano Banana (Gemini 2.5 Flash Image) costs $0.30/1M input tokens versus $0.60/1M 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.
Nano Banana (Gemini 2.5 Flash Image) is ~100% cheaper at $0.30/1M; pay for GLM-5 only for reasoning depth.
Decision scorecard
Local evidence first| Signal | Nano Banana (Gemini 2.5 Flash Image) | GLM-5 |
|---|---|---|
| Best for | provider-routed production | reasoning-heavy apps, tool-calling agents, and provider-routed production |
| Decision fit | General | Coding, RAG, and Agents |
| Context window | 33k | 200k |
| Cheapest output | $30/1M tokens | $2.08/1M tokens |
| Provider routes | 4 tracked | 7 tracked |
| Shared benchmarks | 0 rows | 0 rows |
Decision tradeoffs
- Use Nano Banana (Gemini 2.5 Flash Image) when your own prompt tests beat the comparison signals; the local data does not show a decisive standalone advantage yet.
- GLM-5 has the larger context window for long prompts, retrieval packs, or transcript analysis.
- GLM-5 has the lower cheapest tracked output price at $2.08/1M tokens.
- GLM-5 has broader tracked provider coverage for fallback and procurement flexibility.
- GLM-5 uniquely exposes Reasoning, Function calling, and Tool use in local model data.
- Local decision data tags GLM-5 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.
Nano Banana (Gemini 2.5 Flash Image)
$7,740
Cheapest tracked route/tier: Google AI Studio
GLM-5
$1,000
Cheapest tracked route/tier: OpenRouter
Estimated monthly gap: $6,740. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on OpenRouter, GCP Vertex AI, and Vercel AI Gateway; start route-level A/B tests there.
- GLM-5 is $27.92/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- GLM-5 adds Reasoning, Function calling, and Tool use in local capability data.
- Provider overlap exists on GCP Vertex AI, OpenRouter, and Vercel AI Gateway; start route-level A/B tests there.
- Nano Banana (Gemini 2.5 Flash Image) is $27.92/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Reasoning, Function calling, and Tool use before moving production traffic.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-04-01 | 2026-02-11 |
| Context window | 33k | 200k |
| Parameters | — | 744B total, 40B active |
| Architecture | decoder only | mixture of experts |
| License | Proprietary | MIT(OSI) |
| Openness | Proprietary | Open source |
| Commercial use | Commercial use with conditions | Commercial use allowed |
| Knowledge cutoff | - | 2025-11 |
Pricing and availability
| Pricing attribute | Nano Banana (Gemini 2.5 Flash Image) | GLM-5 |
|---|---|---|
| Input price | $0.30/1M tokens | $0.60/1M tokens |
| Output price | $30/1M tokens | $2.08/1M tokens |
| Providers |
Capabilities
| Capability | Nano Banana (Gemini 2.5 Flash Image) | GLM-5 |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | Yes |
| Function calling | No | Yes |
| Tool use | No | Yes |
| Structured outputs | No | Yes |
| Code execution | No | 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: GLM-5, function calling: GLM-5, tool use: GLM-5, and structured outputs: GLM-5. Both models share the core language-model surface, 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, Nano Banana (Gemini 2.5 Flash Image) lists $0.30/1M input and $30/1M output tokens on the cheapest tracked provider, while GLM-5 lists $0.60/1M input and $2.08/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts GLM-5 lower by about $8.17 per million blended tokens. Availability is 4 providers versus 7, so concentration risk also matters.
Choose Nano Banana (Gemini 2.5 Flash Image) when provider fit and lower input-token cost are central to the workload. Choose GLM-5 when reasoning depth, larger context windows, and broader provider choice are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship. This keeps the decision grounded in measurable tradeoffs instead of brand-level assumptions.
FAQ
Which has a larger context window, Nano Banana (Gemini 2.5 Flash Image) or GLM-5?
GLM-5 supports 200k tokens, while Nano Banana (Gemini 2.5 Flash Image) supports 33k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Nano Banana (Gemini 2.5 Flash Image) or GLM-5?
GLM-5 is cheaper on tracked token pricing. Nano Banana (Gemini 2.5 Flash Image) costs $0.30/1M input and $30/1M output tokens. GLM-5 costs $0.60/1M input and $2.08/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Nano Banana (Gemini 2.5 Flash Image) or GLM-5 open source?
Nano Banana (Gemini 2.5 Flash Image) is listed under Proprietary. GLM-5 is listed under MIT. 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 reasoning mode, Nano Banana (Gemini 2.5 Flash Image) or GLM-5?
GLM-5 has the clearer documented reasoning mode signal in this comparison. If reasoning mode is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for function calling, Nano Banana (Gemini 2.5 Flash Image) or GLM-5?
GLM-5 has the clearer documented function calling signal in this comparison. If function calling is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Where can I run Nano Banana (Gemini 2.5 Flash Image) and GLM-5?
Nano Banana (Gemini 2.5 Flash Image) is available on Google AI Studio, GCP Vertex AI, OpenRouter, and Vercel AI Gateway. GLM-5 is available on Fireworks AI, OpenRouter, Together AI, GCP Vertex AI, and NVIDIA NIM. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-05-22. Data sourced from public model cards and provider documentation.