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Business · 12 tasks · 50 models

Cheapest AI models for Investor & Pitch

Which models can make startup pitches clearer, more credible, and harder to pick apart?

Top models Anthropic claude-sonnet-4.6-high Anthropic claude-opus-4.6-low Anthropic claude-opus-4.5-high

The cheapest capable model for Investor & Pitch is deepseek-v3.2, at $0.015 per run — and it still clears our quality bar.

Best overall Strong
claude-sonnet-4.6-high

Top score — strong

87.2 score $0.0551/run 62.9s
Best value ★ Usable
deepseek-v3.2

Clears the quality bar at $0.015/run

78.1 score $0.0148/run 57.6s
Fastest usable Usable
gemini-3.1-flash-lite

~18s per run, still strong

78.4 score $0.0212/run 18.3s

Quality vs. cost

Every model placed by what it delivers and what it costs. The best value sits high and to the left.

# Model Score
1 deepseek-v3.2 78.1 Usable
2 grok-4.20-beta 78.4 Usable
3 kimi-k2.5 79.7 Usable
4 gpt-5.4-nano 75.6 Usable
5 qwen3.5-plus-02-15 79.8 Usable
6 gpt-5.4-mini 76.2 Usable
7 glm-5.1 79.8 Usable
8 gemini-3.1-flash-lite 78.4 Usable

What separates the top models

Founder Reality Check

medium

Tests whether the model can challenge unrealistic founder assumptions tactfully.

Leader: claude-opus-4.5-high

Investor Question Test

medium

Tests whether the model can predict the hard questions investors will ask.

Leader: claude-opus-4.6-low

Deck Doctor

medium

Tests whether the model can improve a weak pitch slide.

Leader: qwen3.7-max-low

Market Sizing Reality Check

medium

Tests whether the model can identify lazy or inflated market sizing.

Leader: claude-sonnet-4.6-high

See the difference

Real model outputs and how our judge scored them.

Top score claude-opus-4.6-low AI customer support startup
95/100

“The model provides an expert-level, highly specific response that perfectly integrates all prompt constraints and details. It synthesizes the provided numbers to create sharp, realistic investor questions (e.g., calculating the $800 ARPU and comparing it to incumbent pricing) and introduces highly relevant domain knowledge (Shopify Sidekick, SKU complexity).”

# 12 Hardest Investor Questions for This Specific Raise

---

## 1. "Nine of your twelve pilots came through your personal network. What's your evidence that a stranger who finds you cold will convert at the same rate?"

**Why they ask it:** Warm intros create false demand signals. Friends tolerate rough products, give generous feedback, and delay saying no. Investors need to know if you've tested any real acquisition channel or if your entire pipeline is social capital.

**A strong answer must prove:** That you have at least some signal from an inbound or outbound cold channel — even a tiny one. Ideally, you can cite a specific cold conversion (one of the three paying customers found you organically), describe the exact channel, and show you understand the difference between "doing me a favor" pilots and "solving my problem" pilots.

---

## 2. "Three out of twelve pilots converted to paid. Walk me through the nine that didn't — individually — and what specifically each one told you when they declined."

**Why they ask it:** A 25% pilot-to-paid conversion is a yellow flag, but the real information is in the *reasons*. Investors want to know if you've done the uncomfortable work of getting real rejection data or if you let pilots quietly ghost you. Patterns in the "no" reveal whether this is a timing issue, a product gap, or a fundamental willingness-to-pay problem.

**A strong answer must prove:** That you can name each lost pilot, articulate their specific objection (not a vague "they weren't ready"), classify the objections into categories, and show which ones you're building toward solving vs. which represent customers outside your ICP. Saying "I didn't follow up hard enough" is a disqualifying answer.

---

## 3. "Your three paying customers generate $2.4k MRR, so 
Mid-pack qwen3.5-plus-02-15 Enterprise self-serve fantasy
83/100

“The model demonstrates exceptional enterprise SaaS expertise, providing highly specific, realistic advice (e.g., procurement thresholds, SOC 2, PLG with sales assist) and framing the feedback with outstanding tact ('friction is a signal of trust').”

Here is a review of the founder plan, broken down by risks, assumptions, a revised strategy, and a communication guide.

### 1. What is Unrealistic or Risky
The core conflict here is between the **distribution model** (self-serve/no-touch) and the **customer profile** (Enterprise/Sensitive Data).

*   **The "Security Wall":** Companies with 500+ employees do not allow employees to upload sensitive internal documents to a third-party AI via a credit card signup. IT/Security teams will block this. They require SOC2 Type II, SSO/SAML integration, data residency guarantees, and DPA (Data Processing Agreements) before a single byte is uploaded. These cannot be self-served.
*   **Procurement Friction:** Any tool costing more than ~$10k/year (or sometimes even $5k) in an enterprise requires a procurement process, vendor security review, and legal approval. A self-serve flow bypasses this, meaning the only customers you get are those acting without permission (Shadow IT), which creates massive churn risk once IT discovers it.
*   **Integration Complexity:** "Upload all your docs" is rarely simple in enterprises. Data lives in SharePoint, Google Drive, Confluence, Slack, and Salesforce. Connecting these requires admin permissions and API configurations that usually need IT involvement, not just a user drag-and-drop.
*   **Change Management:** Rolling out AI across a 500+ person organization requires training and trust-building. Without Customer Success (CS) or onboarding, adoption rates will likely be <5%. Low adoption = low retention = churn before Series A.
*   **The Series A Trap:** Waiting until Series A (typically $5M–$10M ARR) to hire CS is dangerous. In enterprise SaaS, net revenue retention (NRR) drives valuation. If you churn out enterprise logos because of poor onboard
Lowest score gpt-5.4-high Enterprise self-serve fantasy
0/100

“The model returned an empty response.”

Where models still fail

The most common problems we flagged across all models.

51incomplete output 22missing required element 17unsupported invention 14empty response 11invented facts 9wrapper text 7hard constraint failure 2malformed output

Frequently asked

What is the best AI model for investor & pitch?

In our benchmarks, claude-sonnet-4.6-high ranks first for investor & pitch, scoring strong, across 12 test cases.

What is the cheapest good model for investor & pitch?

deepseek-v3.2 is the best value: it clears our quality bar for investor & pitch at $0.015 per run.

Which model is fastest for investor & pitch?

gemini-3.1-flash-lite is the fastest model that still performs well for investor & pitch.

How we test

Each model output is scored by a strict JSON LLM judge, supported by deterministic heuristics, then normalized to a 0-100 score.

Judge: gemini-3.1-pro-preview · 684 model runs across 4 benchmarks · last tested 2026-06-30

This page is Spring Prompt, running

We just did this for every model. Do it for your prompt.

The rankings above come from running real tasks through real models and scoring every output. Spring Prompt is that same engine — pointed at your prompt, your test cases, and your definition of good.

  • Generate test cases from your prompt — no eval set required to start.
  • Compare models side by side with quality, cost and latency in one matrix.
  • Optimise the winner until the scores say it's ready to ship.
Experiment · Cold outreach email

Prompt × model results

12 test cases · 3 evals
Claude Opus
GPT-5
Gemini
v1
7.1
6.8
7.4
v2
8.3
7.9
8.0
v3
9.2
8.6
8.4
Best combo: v3 × Claude Opus
9.2 quality · $0.004/run · 1.8s