Claude 3.5 Haiku vs Gemini 2.5 Flash
Claude 3.5 Haiku (2024) and Gemini 2.5 Flash (2025) are frontier reasoning models from Anthropic and Google DeepMind. Claude 3.5 Haiku ships a 200k-token context window, while Gemini 2.5 Flash ships a 1m-token context window. On pricing, Gemini 2.5 Flash costs $0.30/1M 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 2.5 Flash is ~167% cheaper at $0.30/1M; pay for Claude 3.5 Haiku only for coding workflow support.
Decision scorecard
Local evidence first| Signal | Claude 3.5 Haiku | Gemini 2.5 Flash |
|---|---|---|
| Best for | reasoning-heavy apps, multimodal apps, 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 | 1m |
| Cheapest output | $4/1M tokens | $2.50/1M tokens |
| Provider routes | 6 tracked | 6 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- Claude 3.5 Haiku uniquely exposes Reasoning in local model data.
- Local decision data tags Claude 3.5 Haiku for Coding, RAG, and Agents.
- Gemini 2.5 Flash has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Gemini 2.5 Flash has the lower cheapest tracked output price at $2.50/1M tokens.
- Gemini 2.5 Flash uniquely exposes Multimodal and JSON / Tool use in local model data.
- Local decision data tags Gemini 2.5 Flash 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 3.5 Haiku
$1,640
Cheapest tracked route/tier: Anthropic
Gemini 2.5 Flash
$865
Cheapest tracked route/tier: Google AI Studio
Estimated monthly gap: $775. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on GCP Vertex AI, Replicate API, and OpenRouter; start route-level A/B tests there.
- Gemini 2.5 Flash is $1.50/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Reasoning before moving production traffic.
- Gemini 2.5 Flash adds Multimodal and JSON / Tool use in local capability data.
- Provider overlap exists on OpenRouter, GCP Vertex AI, and Replicate API; start route-level A/B tests there.
- Claude 3.5 Haiku is $1.50/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Check replacement coverage for Multimodal and JSON / Tool use before moving production traffic.
- Claude 3.5 Haiku adds Reasoning in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2024-10-22 | 2025-06-17 |
| Context window | 200k | 1m |
| 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 | - | 2025-01 |
Pricing and availability
| Pricing attribute | Claude 3.5 Haiku | Gemini 2.5 Flash |
|---|---|---|
| Input price | $0.80/1M tokens | $0.30/1M tokens |
| Output price | $4/1M tokens | $2.50/1M tokens |
| Providers |
Capabilities
| Capability | Claude 3.5 Haiku | Gemini 2.5 Flash |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | No | Yes |
| Reasoning | Yes | No |
| JSON / Tool use | No | 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
Popular comparisons for Claude 3.5 Haiku
Popular comparisons for Gemini 2.5 Flash
Last reviewed: 2026-07-26. Data sourced from public model cards and provider documentation.