Which model is cheaper for high-output workloads?

Gemini 3 Flash is cheaper across all workload profiles. With output tokens at $3 per million versus Haiku 4.5's $5 per million, and input tokens at $0.50 versus $1, Gemini 3 Flash saves 40% on generation and 50% on input processing. For a typical output-heavy workload, expect overall savings around 40-45%.

Does the larger context window of Gemini 3 Flash cost extra?

No. Gemini 3 Flash's 1-million-token context window—five times larger than Haiku 4.5's 200K—carries the same $0.50 per million input pricing. There are no tiered rates or surcharges for using the full context capacity, making it exceptionally cost-effective for long-document processing, code analysis, and multi-turn conversations.

How much can I save by switching from Claude Haiku 4.5 to Gemini 3 Flash?

At 100 million input and 30 million output tokens monthly, switching from Claude Haiku 4.5 ($250) to Gemini 3 Flash ($140) saves $110 per month, a 44% reduction. Savings scale linearly: at 1 billion input and 300 million output tokens, you'd save $1,100 monthly. The gap widens with output-heavy workloads.

Are both models still actively maintained as of September 2026?

Yes. Both Claude Haiku 4.5 and Gemini 3 Flash remain actively available through their respective providers' APIs as of September 30, 2026. Pricing has held stable through mid-2026, with multiple aggregators and official sources confirming the $1/$5 pricing for Haiku 4.5 and $0.5/$3 for Gemini 3 Flash across standard API tiers.

HEAD-TO-HEAD · EFFICIENCY TIER · VERIFIED SEPTEMBER 30, 2026

Claude Haiku 4.5 vs Gemini 3 Flash: which is actually cheaper?

Claude Haiku 4.5 and Gemini 3 Flash both target the efficiency tier, but their pricing structures differ significantly. Haiku 4.5 charges $1 per million input tokens and $5 per million output tokens, while Gemini 3 Flash undercuts both at $0.50 input and $3 output per million tokens.

Spec	Claude Haiku 4.5	Gemini 3 Flash
Input / 1M tokens	$1.00	$0.50
Output / 1M tokens	$5.00	$3.00
Context window	200K	1M

The output price gap

The output token pricing gap is substantial: Gemini 3 Flash charges $3 per million output tokens compared to Claude Haiku 4.5's $5 per million—a 40% discount that compounds quickly in generation-heavy workloads like content creation, summarization, or conversational AI. For input tokens, Gemini 3 Flash also runs 50% cheaper at $0.50 per million versus Haiku's $1. In blended workloads, this pricing advantage makes Gemini 3 Flash consistently more economical across virtually all token distributions.

Context window

Claude Haiku 4.5 offers a 200,000-token context window, suitable for most document processing and coding tasks. Gemini 3 Flash provides a significantly larger 1-million-token context window—five times the capacity—allowing developers to process entire codebases, long transcripts, or extensive research papers in a single request. This expanded window comes with no premium on per-token pricing, making Gemini 3 Flash particularly attractive for context-intensive applications.

Worked example

At 100 million input tokens and 30 million output tokens per month, Claude Haiku 4.5 costs $100 (input: 100M × $1/M = $100) + $150 (output: 30M × $5/M = $150) = $250 total. Gemini 3 Flash costs $50 (input: 100M × $0.5/M = $50) + $90 (output: 30M × $3/M = $90) = $140 total. That's a $110 monthly saving with Gemini 3 Flash, or 44% less than Haiku 4.5 at this volume.

Prices from the LLM Price Watch daily tracker, 2026-09-30. Prices change; use the calculator with your own usage for an exact comparison, or see the full price table for every tracked model.