Inference Labs › Compare models › Claude Haiku 4.5 vs Gemini 2.5 Flash
Claude Haiku 4.5 vs Gemini 2.5 Flash
Side-by-side comparison of Claude Haiku 4.5 and Gemini 2.5 Flash: per-token pricing, context windows, strengths, and which to pick for production workloads.
Claude Haiku 4.5
Strengths
- Fastest Claude tier with the 4.5 reasoning recipe.
- Cleaner JSON-mode adherence than Sonnet for high-volume extraction.
Trade-offs
- Lower ceiling on multi-step reasoning vs Sonnet.
Gemini 2.5 Flash
Strengths
- Cheapest 1M-context model in production.
- Latency competitive with Haiku for short outputs.
Trade-offs
- Output quality dip on niche domains vs Sonnet.
- Less mature function-calling than OpenAI.
Side-by-side pricing
| Metric | Claude Haiku 4.5 | Gemini 2.5 Flash |
|---|---|---|
| Input price ($/1M tokens) | $1.00 | $0.07 |
| Output price ($/1M tokens) | $5.00 | $0.30 |
| Context window | 200K tokens | 1,000K tokens |
| Cost for 1M in + 1M out | $6.00 | $0.38 |
| Tier | balanced | cheap |
Which should you pick?
Gemini 2.5 Flash is cheaper per 1M input tokens; Gemini 2.5 Flash is cheaper on output. For high-output workloads (long generation, structured extraction), the output rate dominates.
For long-context use cases, Gemini 2.5 Flash has the larger window (1,000K vs 200K).
In practice, the right answer depends on your traffic mix. Inference Labs lets you route the same request to whichever of these two is best for that prompt -- using policy you define (quality-first, cost-first, latency-first) without changing your application code.
Route between them automatically
Inference Labs is a vendor-neutral router that sits in front of Claude Haiku 4.5, Gemini 2.5 Flash, and the other major cloud LLMs. Set per-request policy (max cost, max latency, required quality tier) and the router picks the best model per call. You keep your existing provider accounts -- we just orchestrate.
- Allowlist only the models your team has approved.
- Automatic failover if one provider is degraded.
- Semantic + exact-hash cache reduces redundant calls.
- Per-workspace spend caps and audit-ready trace logs.
Stop hard-coding model names. Start a free Inference Labs trial → -- 500 credits, no card required, see your routing decisions in the dashboard within minutes.