Google has launched a newer model, Gemini 2.0 Flash, we suggest considering this model instead.
For more information, see Comparison of Gemini 2.0 Flash to other models and API provider benchmarks for Gemini 2.0 Flash.
Gemini 1.5 Pro (Sep '24) Intelligence, Performance & Price Analysis
Model summary
Intelligence
Artificial Analysis Intelligence Index
Speed
Output tokens per second
Input Price
USD per 1M tokens
Output Price
USD per 1M tokens
Verbosity
Output tokens from Intelligence Index
Metrics are compared against models of the same class:
- Non-reasoning models → compared only with other non-reasoning models
- Reasoning models → compared across both reasoning and non-reasoning
- Open weights models → compared only with other open weights models of the same size class:
- Tiny: ≤4B parameters
- Small: 4B–40B parameters
- Medium: 40B–150B parameters
- Large: >150B parameters
- Proprietary models → compared across proprietary and open weights models of the same price range, using a blended 3:1 input/output price ratio:
- <$0.15 per 1M tokens
- $0.15–$1 per 1M tokens
- >$1 per 1M tokens
| Reasoning | No This page shows the non-reasoning version of this model. A reasoning variant may also exist. |
|---|---|
| Input modality | Supports: image This information is still being updated |
| Output modality | This information is still being updated |
| Knowledge cutoff | Aug 1, 2024 |
| Context window | 2m ~3000 A4 pages of size 12 Arial font |
Gemini 1.5 Pro (Sep '24) is amongst the leading models in intelligence and well priced when comparing to other non-reasoning models of similar price. The model supports image input, and has a 2m tokens context window with knowledge up to August 2024.
Gemini 1.5 Pro (Sep '24) scores 16 on the Artificial Analysis Intelligence Index, placing it well above average among comparable models (averaging 11). When evaluating the Intelligence Index, it generated 1.7M tokens, which is fairly concise in comparison to the average of 3.0M.
Pricing for Gemini 1.5 Pro (Sep '24) is $0.00 per 1M input tokens (competitively priced, average: $0.00) and $0.00 per 1M output tokens (competitively priced, average: $0.00). In total, it cost $0.00 to evaluate Gemini 1.5 Pro (Sep '24) on the Intelligence Index.
Intelligence
Artificial Analysis Intelligence Index
Artificial Analysis Intelligence Index by Open Weights / Proprietary
Intelligence Evaluations
Openness
Artificial Analysis Openness Index: Results
Intelligence Index Comparisons
Intelligence vs. Price
Intelligence Index Token Use & Cost
Output Tokens Used to Run Artificial Analysis Intelligence Index
Cost to Run Artificial Analysis Intelligence Index
Context Window
Context Window
Pricing
Pricing: Input and Output Prices
Intelligence vs. Price (Log Scale)
Pricing Comparison of Gemini 1.5 Pro (Sep '24) API Providers
Speed
Measured by Output Speed (tokens per second)
Output Speed
Output Speed vs. Price
Latency
Measured by Time (seconds) to First Token
Latency: Time To First Answer Token
End-to-End Response Time
Seconds to output 500 Tokens, calculated based on time to first token, 'thinking' time for reasoning models, and output speed
End-to-End Response Time
Model Size (Open Weights Models Only)
Model Size: Total and Active Parameters
Comparisons to Gemini 1.5 Pro (Sep)
Gemini 1.5 Pro (Sep)
gpt-oss-120B (high)
gpt-oss-20B (high)
GPT-5.4 (xhigh)
GPT-5.4 Pro (xhigh)
GPT-5.3 Codex (xhigh)
Llama 4 Maverick
Gemini 3 Flash
Gemini 3.1 Pro Preview
Gemini 3.1 Flash-Lite Preview
Claude Sonnet 4.6 (max)
Claude 4.5 Haiku
Claude Opus 4.6 (max)
Mistral Large 3DeepSeek V3.2
Grok 4.20 Beta 0309
Nova 2.0 Pro Preview (medium)
MiniMax-M2.7
NVIDIA Nemotron 3 Super
NVIDIA Nemotron 3 Nano
Kimi K2.5
K-EXAONEMiMo-V2-Pro
MiMo-V2-Flash (Feb 2026)
K2 Think V2
Mi:dm K 2.5 ProGLM-5
Qwen3.5 397B A17B
Frequently Asked Questions
Common questions about Gemini 1.5 Pro (Sep '24)
Gemini 1.5 Pro (Sep '24) was released on September 24, 2024.
Gemini 1.5 Pro (Sep '24) was created by Google.
Gemini 1.5 Pro (Sep '24) scores 16 (estimated) on the Artificial Analysis Intelligence Index, placing it well above average among other non-reasoning models in a similar price tier (median: 11).
When evaluated on the Intelligence Index, Gemini 1.5 Pro (Sep '24) generated 1.7M output tokens, which is better than average compared to other non-reasoning models in a similar price tier (median: 3.0M).
No, Gemini 1.5 Pro (Sep '24) is not a reasoning model. It provides direct responses without extended chain-of-thought reasoning.
Gemini 1.5 Pro (Sep '24) supports image input.
Gemini 1.5 Pro (Sep '24) supports text only output.
Yes, Gemini 1.5 Pro (Sep '24) supports image input and can analyze, describe, and answer questions about images.
No, Gemini 1.5 Pro (Sep '24) is not multimodal. It only supports image input.
Gemini 1.5 Pro (Sep '24) has a context window of 2.0M tokens. This determines how much text and conversation history the model can process in a single request.
No, Gemini 1.5 Pro (Sep '24) is proprietary. The model weights are not publicly available.
Gemini 1.5 Pro (Sep '24) is a proprietary model and Google has not disclosed the model size or parameter count.
Gemini 1.5 Pro (Sep '24) achieves a score of 16 on the Artificial Analysis Intelligence Index. This composite benchmark evaluates models across reasoning, knowledge, mathematics, and coding.
Gemini 1.5 Pro (Sep '24) has a knowledge cutoff of August 2024. The model's training data includes information up to this date.
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