Claude Haiku 4.5 vs Gemma 4 31B IT
Claude Haiku 4.5 (2025) and Gemma 4 31B IT (2026) are general-purpose language models from Anthropic and Google DeepMind. Claude Haiku 4.5 ships a 200K-token context window, while Gemma 4 31B IT ships a 256K-token context window. On LMArena Text Arena - Creative Writing, Gemma 4 31B IT leads by 45 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 31B IT is ~614% cheaper at $0.14/1M; pay for Claude Haiku 4.5 only for coding workflow support.
Decision scorecard
Local evidence first| Signal | Claude Haiku 4.5 | Gemma 4 31B IT |
|---|---|---|
| Best for | multimodal apps, tool-calling agents, and provider-routed production | multimodal apps, tool-calling agents, and provider-routed production |
| Decision fit | Coding, RAG, and Agents | Coding, RAG, and Agents |
| Context window | 200K | 256K |
| Cheapest output | $5/1M tokens | $0.40/1M tokens |
| Provider routes | 9 tracked | 6 tracked |
| Shared benchmarks | 1 shared | LMArena Text Arena - Creative Writing leader |
Decision tradeoffs
- Claude Haiku 4.5 has broader tracked provider coverage for fallback and route flexibility.
- Claude Haiku 4.5 uniquely exposes Code execution in local model data.
- Local decision data tags Claude Haiku 4.5 for Coding, RAG, and Agents.
- Gemma 4 31B IT holds a shared-benchmark lead on LMArena Text Arena - Creative Writing, ahead by 45 points.
- Gemma 4 31B IT has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Gemma 4 31B IT has the lower cheapest tracked output price at $0.40/1M tokens.
- Local decision data tags Gemma 4 31B 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 Haiku 4.5
$2,050
Cheapest tracked route/tier: Microsoft Foundry
Gemma 4 31B IT
$212
Cheapest tracked route/tier: OpenRouter
Estimated monthly gap: $1,838. Batch, cache, alternate speed tiers, 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.
- Gemma 4 31B IT is $4.60/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Code execution before moving production traffic.
- Provider overlap exists on GCP Vertex AI and OpenRouter; start route-level A/B tests there.
- Claude Haiku 4.5 is $4.60/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Claude Haiku 4.5 adds Code execution in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-10-01 | 2026-03-31 |
| Context window | 200K | 256K |
| Parameters | — | 31B |
| Architecture | Decoder Only | - |
| License | Proprietary | Apache 2.0OSI-approved |
| Openness | Proprietary | Open source |
| Weights | Not released | Available |
| Code | Unknown | Unknown |
| Commercial use | Restricted | Permitted |
| Knowledge cutoff | 2025-02 | 2025-01 |
Pricing and availability
| Pricing attribute | Claude Haiku 4.5 | Gemma 4 31B IT |
|---|---|---|
| Input price | $1/1M tokens | $0.14/1M tokens |
| Output price | $5/1M tokens | $0.40/1M tokens |
| Providers |
Capabilities
| Capability | Claude Haiku 4.5 | Gemma 4 31B IT |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | No | No |
| JSON / 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
| Benchmark | Claude Haiku 4.5 | Gemma 4 31B IT |
|---|---|---|
| LMArena Text Arena - Creative Writing | 1371.0 | 1416.0 |
Deep dive
On shared benchmark coverage, LMArena Text Arena - Creative Writing has Claude Haiku 4.5 at 1371 and Gemma 4 31B IT at 1416, with Gemma 4 31B IT ahead by 45 points. The largest visible gap is 45 points on LMArena Text Arena - Creative Writing, 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 JSON / Tool use: Claude Haiku 4.5 and code execution: Claude Haiku 4.5. Both models share vision, multimodal input, JSON / 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 $1/1M input and $5/1M output tokens on the cheapest listed provider, while Gemma 4 31B IT lists $0.14/1M input and $0.40/1M output tokens on the cheapest listed provider. A 70/30 input-output blend puts Gemma 4 31B IT lower by about $1.98 per million blended tokens. Availability is 9 providers versus 6, so concentration risk also matters.
Choose Claude Haiku 4.5 when coding workflow support and broader provider choice are central to the workload. Choose Gemma 4 31B IT when long-context analysis, larger context windows, 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 Haiku 4.5 or Gemma 4 31B IT?
Gemma 4 31B IT supports 256K tokens, while Claude Haiku 4.5 supports 200K 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 Gemma 4 31B IT?
Gemma 4 31B IT is cheaper on listed token pricing. Claude Haiku 4.5 costs $1/1M input and $5/1M output tokens. Gemma 4 31B IT costs $0.14/1M input and $0.40/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Claude Haiku 4.5 or Gemma 4 31B IT open source?
Claude Haiku 4.5 is listed under Proprietary. Gemma 4 31B IT is listed under Apache 2.0. 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 Gemma 4 31B IT?
Both Claude Haiku 4.5 and Gemma 4 31B IT 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 Gemma 4 31B IT?
Both Claude Haiku 4.5 and Gemma 4 31B IT 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 Gemma 4 31B IT?
Claude Haiku 4.5 is available on Microsoft Foundry, Anthropic, Snowflake Cortex, AWS Bedrock, and GCP Vertex AI. Gemma 4 31B IT is available on Google AI Studio, GCP Vertex AI, OpenRouter, Together AI, and Novita AI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-10-17. Data sourced from public model cards and provider documentation.