O3 API Benchmarks, Pricing & Provider Data
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O3 benchmark, API pricing, and provider data cover 755 API providers, with prices starting at $0.034/request. O3 free API options are available from 1 provider. The page also shows measured API speed and first-token latency.
OpenAI O3 is a reasoning model in the O series, designed for complex reasoning, problem-solving, and analytical tasks.
Category Performance
Observed-capability estimates with uncertainty reported separately from independent benchmark families.
- Coverage
- 6 / 8
- Methodology
- V3.0
#1Math58.7Estimated3/4 Measured dimensions
#2Reasoning54.2RatedGlobal rank #223/4 Measured dimensions
#3Coding53.1Provisional1/4 Measured dimensions
#4Instruction following53Provisional1/4 Measured dimensions
#5Agents49.1Provisional1/4 Measured dimensions
#6Knowledge47.6Provisional1/4 Measured dimensions
Specifications
Input and output token limits for this model, plus how it ranks on long-context understanding.
Features
Rankings
Excels at
It's decent at
Falls behind in
Detailed scores
Updated: Sep 5, 2026Overall
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Overall score50.0#82 / 111
Overall
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Speed & latency
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Output speed123.3 tok/s#31 / 80Time to first token5.17 s#64 / 80
Speed & latency
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Pricing
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Input price$2.00/M#142 / 185Output price$8.00/M#137 / 185
Pricing
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Agents
V3.0undefined metric} other undefined metrics}} · Provisional
Score49.180% interval33.1–65.11/4 Measured dimensionsΤ²-bench results80.7#54 / 82
Agents
V3.0undefined metric} other undefined metrics}} · Provisional
Coding
V3.0undefined metric} other undefined metrics}} · Provisional
Score53.180% interval39.2–67.01/4 Measured dimensionsLiveCodeBench80.8%#16 / 115AA-SciCode41.0#67 / 113
Coding
V3.0undefined metric} other undefined metrics}} · Provisional
Reasoning
V3.0undefined metric} other undefined metrics}} · Rated
Score54.2#2280% interval45.5–62.83/4 Measured dimensionsMMLU-Pro85.3%#27 / 129GPQA82.7%#82 / 217
Reasoning
V3.0undefined metric} other undefined metrics}} · Rated
Knowledge
V3.0undefined metric} other undefined metrics}} · Provisional
Score47.680% interval31.6–63.61/4 Measured dimensionsArtificial Analysis Intelligence Index31.1#75 / 117AA-GPQA Diamond82.7#71 / 113
Knowledge
V3.0undefined metric} other undefined metrics}} · Provisional
Math
V3.0undefined metric} other undefined metrics}} · Estimated
Score58.780% interval49.4–67.93/4 Measured dimensionsAIME90.3%#3 / 68MATH-50099.2%#1 / 73
Math
V3.0undefined metric} other undefined metrics}} · Estimated
Multilingual
V3.0undefined metric} other undefined metrics}} · No data
No data80% interval30.8–69.20/4 Measured dimensions
Multilingual
V3.0undefined metric} other undefined metrics}} · No data
Multimodal
V3.0undefined metric} other undefined metrics}} · No data
80% interval30.8–69.20/4 Measured dimensionsAA-MMMU-Pro70.1#51 / 68Design Arena Website1047.0#71 / 78
Multimodal
V3.0undefined metric} other undefined metrics}} · No data
Instruction following
V3.0undefined metric} other undefined metrics}} · Provisional
Score5380% interval37.0–69.01/4 Measured dimensionsAA-IFBench71.4#31 / 84
Instruction following
V3.0undefined metric} other undefined metrics}} · Provisional
OpenRouter endpoints
1 endpointsThird-party OpenRouter endpoint data, shown separately from LMSpeed measurements. Some 30-minute live performance fields only appear after syncing with an OpenRouter API key.
| Provider endpoint | Input | Output | 1d uptime | 30m latency | 30m throughput | Context / output |
|---|---|---|---|---|---|---|
OpenAI openai | $2/M | $8/M | 100% | — | — | undefined tokens / undefined tokens |
Pricing Comparison
Compare O3 API pricing across 754 providers. Prices range from $0.034/request to $300.00/M. KFCV50 offers the lowest rate at $0.034/request. 1 provider offers free API credits or a free tier.
| Provider | Health | Model Variant | Group | Input ($/M) | Output ($/M) | Speed (t/s) | First token | Audit |
|---|---|---|---|---|---|---|---|---|
L1 100% | o3 | default | -93%$0.137/M Cache read$0.034/M | -93%$0.548/M | — | — | — | |
L1 100% | o3-2025-04-16 | default | -93%$0.137/M Cache read$0.034/M | -93%$0.548/M | — | — | — | |
L1 100% | o3 | default | $2.00/M | $8.00/M | — | — | — | |
L1 100% | o3-2025-04-16 | default | $2.00/M | $8.00/M | — | — | — | |
L1 100% | o3 | default | $0.068/request | - | — | — | — | |
L1 100% | o3-all | default | $0.068/request | - | — | — | — | |
L1 100% | o3-2025-04-16 | default | -86%$0.274/M | -86%$1.10/M | — | — | — | |
L1 100% | o3-medium | az_stable_high_22 | -86%$0.274/M | -86%$1.10/M | — | — | — | |
L1 100% | o3-2025-04-16-high | az_stable_high_22 | -86%$0.274/M | -86%$1.10/M | — | — | — | |
L1 100% | o3-2025-04-16-low | az_stable_high_22 | -86%$0.274/M | -86%$1.10/M | — | — | — | |
L1 100% | o3-2025-04-16-medium | az_stable_high_22 | -86%$0.274/M | -86%$1.10/M | — | — | — | |
L1 100% | o3-high | az_stable_high_22 | -86%$0.274/M | -86%$1.10/M | — | — | — | |
L1 100% | o3-low | az_stable_high_22 | -86%$0.274/M | -86%$1.10/M | — | — | — | |
L1 100% | o3-2025-04-16 | default | -23%$1.53/M | -23%$6.14/M | — | — | — | |
L1 100% | o3 | default | -23%$1.53/M | -23%$6.14/M | — | — | — | |
兔子API Free | L1 100% | o3-2025-04-16 | 原价分组 | Free | Free | — | — | — |
L1 100% | o3-all | default | $0.600/request | - | — | — | — | |
L1 100% | o3 | default | $0.600/request | - | — | — | — | |
L1 100% | o3-2025-04-16 | default | -96%$0.082/M Cache read$0.021/M | -96%$0.329/M | — | — | — | |
L1 100% | o3 | default | -96%$0.082/M Cache read$0.021/M | -96%$0.329/M | — | — | — |
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Frequently Asked Questions
- What benchmark data does O3 include?
- LMSpeed shows O3 benchmark context, API price, output speed, first-token latency, and provider data across 755 providers when those signals are available.
- What is the O3 API price?
- O3 has pricing from 755 providers, ranging from $0.034/request to $300.00/M. KFCV50 has the lowest listed price.
- What does the O3 API pricing table include?
- The O3 API pricing table compares 755 providers by input price, output price, free tier status, speed, first-token latency, and recent health data when available.
- Which provider has the cheapest O3 API pricing?
- KFCV50 currently has the lowest listed O3 price at $0.034/request across 755 providers.
- Can I compare O3 API price and speed together?
- Yes. LMSpeed shows O3 API price, output speed, first-token latency, and provider health on the same page so you can compare cost and performance together.
- Is O3 API free?
- Yes, O3 free API options are available through 1 providerundefined other undefined} on LMSpeed, including 兔子API. These providers offer free API credits or a free tier with no per-token charges.
- Where can I get O3 free API access?
- LMSpeed currently lists 1 free API providerundefined other undefined} for O3: 兔子API. Check each provider row before using it because free tier limits can change.