Gemini 3.5 Flash vs Claude Haiku 4.5
Google's production / efficiency tier against Anthropic's speed / budget tier — published pricing, context windows and specs, side by side.
Gemini 3.5 Flash vs Claude Haiku 4.5: side-by-side
| Gemini 3.5 Flash | Claude Haiku 4.5 | |
|---|---|---|
| Maker | Anthropic | |
| Released | 19 May 2026 (Google I/O) | 15 October 2025 |
| Tier | Production / efficiency tier | Speed / budget tier |
| Context window | 1,048,576 tokens | 200,000 tokens |
| Max output | 65,536 tokens | Up to 64,000 tokens |
| API price (per 1M) | $1.50 / $9 per 1M tokens | $1 / $5 per 1M tokens |
| Access | Proprietary — Gemini API (Google) | Proprietary — Claude API & claude.ai |
| Best at | Agentic coding, high-volume production work at near-Pro quality | High-volume, latency-sensitive, cost-sensitive tasks; subagents |
| Standout | Beats Gemini 3.1 Pro on coding at 25% lower cost — first public Gemini 3.5 release | Sonnet 4-level coding at one-third the cost and 2x+ the speed; extended thinking (a Haiku first) |
Price comparison
| Model | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Gemini 3.5 Flash | $1.50 | $9.00 |
| Claude Haiku 4.5 | $1.00 | $5.00 |
Published benchmark figures
Each figure below is the model's own published score as listed on its AI Model Hub page. Different suites (and suite versions) are not directly comparable.
| Model | Benchmark | Published score |
|---|---|---|
| Gemini 3.5 Flash | Terminal-Bench 2.1 | 76.2% |
| Gemini 3.5 Flash | MCP Atlas | 83.6% |
| Gemini 3.5 Flash | CharXiv Reasoning | 84.2% |
| Gemini 3.5 Flash | GPQA | 82.8% |
What the table says
- Pricing. Gemini 3.5 Flash lists at $1.50 / $9 per 1M tokens; Claude Haiku 4.5 lists at $1 / $5 per 1M tokens. On these published rates, Claude Haiku 4.5's input price is 1.5x lower than Gemini 3.5 Flash's, and Claude Haiku 4.5's output price is 1.8x lower than Gemini 3.5 Flash's. Cached input for Gemini 3.5 Flash lists at $0.15 per 1M tokens.
- Context. Gemini 3.5 Flash's context window (1,048,576 tokens) is about 5.2x the size of Claude Haiku 4.5's (200,000 tokens).
- Access. Both are proprietary, hosted-API models; neither publishes weights for self-hosting.
- Benchmarks. The two model pages report results on different benchmark suites, so the published scores are not directly comparable head-to-head; the tables below list each model's own published figures.
Key takeaway
Everything above is drawn from the two models' published rate cards and spec sheets. Which one fits depends on the workload you price it against — run your own token volumes through the pricing calculator to see the monthly difference.
Full Gemini 3.5 Flash overview Full Claude Haiku 4.5 overview
Frequently asked questions
Which is cheaper, Gemini 3.5 Flash or Claude Haiku 4.5?
Claude Haiku 4.5 — it lists at $1 / $5 per 1M tokens versus $1.50 / $9 per 1M tokens for Gemini 3.5 Flash.
Which has the bigger context window, Gemini 3.5 Flash or Claude Haiku 4.5?
Gemini 3.5 Flash — 1,048,576 tokens, versus 200,000 tokens for Claude Haiku 4.5.
Which model is newer?
Gemini 3.5 Flash is the more recent release (19 May 2026 (Google I/O)); Claude Haiku 4.5 was released 15 October 2025.
Can I run Gemini 3.5 Flash or Claude Haiku 4.5 locally?
No — both Gemini 3.5 Flash and Claude Haiku 4.5 are proprietary models accessed through their vendors' APIs and apps; neither publishes weights.