Claude Haiku 4.5 vs Gemini 3.1 Flash-Lite
Claude Haiku 4.5 (2025) and Gemini 3.1 Flash-Lite (2026) are general-purpose language models from Anthropic and Google DeepMind. Claude Haiku 4.5 ships a 200k-token context window, while Gemini 3.1 Flash-Lite ships a 1.05m-token context window. On pricing, Gemini 3.1 Flash-Lite costs $0.25/1M input tokens versus $0.80/1M 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.
Gemini 3.1 Flash-Lite is ~220% cheaper at $0.25/1M; pay for Claude Haiku 4.5 only for coding workflow support.
Decision scorecard
Local evidence first| Signal | Claude Haiku 4.5 | Gemini 3.1 Flash-Lite |
|---|---|---|
| Best for | multimodal apps, tool-calling agents, and provider-routed production | multimodal apps, tool-calling agents, and long-context analysis |
| Decision fit | Coding, RAG, and Agents | Coding, RAG, and Agents |
| Context window | 200k | 1.05m |
| Cheapest output | $4/1M tokens | $1.50/1M tokens |
| Provider routes | 9 tracked | 3 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- Claude Haiku 4.5 has broader tracked provider coverage for fallback and route flexibility.
- Local decision data tags Claude Haiku 4.5 for Coding, RAG, and Agents.
- Gemini 3.1 Flash-Lite has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Gemini 3.1 Flash-Lite has the lower cheapest tracked output price at $1.50/1M tokens.
- Local decision data tags Gemini 3.1 Flash-Lite 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
$1,640
Cheapest tracked route/tier: AWS Bedrock
Gemini 3.1 Flash-Lite
$575
Cheapest tracked route/tier: Google AI Studio
Estimated monthly gap: $1,065. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on OpenRouter and Vercel AI Gateway; start route-level A/B tests there.
- Gemini 3.1 Flash-Lite is $2.50/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Provider overlap exists on OpenRouter and Vercel AI Gateway; start route-level A/B tests there.
- Claude Haiku 4.5 is $2.50/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-10-01 | 2026-05-07 |
| Context window | 200k | 1.05m |
| Parameters | — | — |
| Architecture | Decoder Only | Decoder Only |
| License | Proprietary | Proprietary |
| Openness | Proprietary | Proprietary |
| Weights | Not released | Not released |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: conditional | Commercial use: conditional |
| Knowledge cutoff | 2025-02 | 2025-01 |
Pricing and availability
| Pricing attribute | Claude Haiku 4.5 | Gemini 3.1 Flash-Lite |
|---|---|---|
| Input price | $0.80/1M tokens | $0.25/1M tokens |
| Output price | $4/1M tokens | $1.50/1M tokens |
| Providers |
Capabilities
| Capability | Claude Haiku 4.5 | Gemini 3.1 Flash-Lite |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | No | No |
| JSON / Tool use | Yes | Yes |
| Structured outputs | Yes | Yes |
| Code execution | Yes | Yes |
| IDE integration | No | No |
| Computer use | No | No |
| Parallel agents | No | No |
Benchmarks
No shared benchmark scores are currently available for this pair.
Continue comparing
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Last reviewed: 2026-07-26. Data sourced from public model cards and provider documentation.