GPT-4o vs Llama-3.1-70B-Instruct vs Mistral Large 2407
Too close to call on our weighted score (Llama-3.1-70B-Instruct 43, GPT-4o 43, Mistral Large 2407 39). The right pick depends on what you value most.
OpenAIGPT-4o
43/100- ECI129.0
- Price$2.50 / $10.00
- Context128K
MetaLlama-3.1-70B-Instruct
43/100- ECI125.9
- Price$0.72 / $0.72
- Context128K
Mistral AIMistral Large 2407
39/100- ECI127.6
- Price$2.00 / $6.00
- Context131K
Too close to call
It is close. Our weighted score puts them within a point (Llama-3.1-70B-Instruct 43/100, GPT-4o 43/100, Mistral Large 2407 39/100), so choose by what matters most for your work: GPT-4o for raw capability, Llama-3.1-70B-Instruct on price and Mistral Large 2407 for long inputs. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.
- CapabilityGPT-4oCapabilities Index (ECI): GPT-4o 129.0 · Mistral Large 2407 127.6 · Llama-3.1-70B-Instruct 125.9
- Lowest priceLlama-3.1-70B-InstructLlama-3.1-70B-Instruct $0.72 · Mistral Large 2407 $3.00 · GPT-4o $4.38 per 1M tokens (3:1 blend)
- Longest contextMistral Large 2407Mistral Large 2407 131,072 · GPT-4o 128,000 · Llama-3.1-70B-Instruct 128,000 tokens
- Widest inputsGPT-4oGPT-4o: Text, Images, PDFs · Llama-3.1-70B-Instruct: Text · Mistral Large 2407: Text, PDFs
- Self-hostingLlama-3.1-70B-Instruct and Mistral Large 2407Publishes downloadable weights
| Measure | Weight | GPT-4o | Llama-3.1-70B-Instruct | Mistral Large 2407 |
|---|---|---|---|---|
| CapabilityCapabilities Index (ECI) | 50% | 51 | 47 | 49 |
| Price | 25% | 19 | 54 | 26 |
| Inputs & features | 15% | 70 | 25 | 35 |
| Context window | 10% | 24 | 24 | 25 |
| Overall | 100% | 43/100 | 43/100 | 39/100 |
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification | GPT-4oOpenAI | Llama-3.1-70B-InstructMeta | Mistral Large 2407Mistral AI |
|---|---|---|---|
| Capability | |||
| Capabilities Index (ECI) | 129.0 (best) | 125.9 | 127.6 |
| ECI rank | #141 of 165 (best) | #149 of 165 | #144 of 165 |
| GPQA DiamondGraduate-level science questions | 48.9% | 44.2% | 49.0% (best) |
| OTIS Mock AIME 2024–2025Competition mathematics | 6.3% | 3.6% | 8.5% (best) |
| Price per million tokens | |||
| Input | $2.50 | $0.72 (best) | $2.00 |
| Output | $10.00 | $0.72 (best) | $6.00 |
| Cached input | $1.25 | — | — |
| Blended (3:1) | $4.38 | $0.72 (best) | $3.00 |
| Long-context rate | Same rate | Same rate | Same rate |
| Price source | Official OpenAI API | Median of 8 providers | Median of 5 providers |
| Limits | |||
| Context window | 128,000 tokens | 128,000 tokens | 131,072 tokens (best) |
| Max output | 16,384 tokens | 4,096 tokens | 104,857 tokens (best) |
| Inputs and features | |||
| Text | Yes | Yes | Yes |
| Images | Yes | No | No |
| PDFs | Yes | No | Yes |
| Audio | No | No | No |
| Video | No | No | No |
| Reasoning | No | No | No |
| Tool calling | Yes | Yes | Yes |
| Structured output | Yes | No | No |
| Availability | |||
| Weights | Proprietary | Open | Open |
| API model ID | gpt-4o | — | — |
| API providers | 26 (best) | 8 | 5 |
| Released | May 13, 2024 | Jul 23, 2024 | Jul 24, 2024 |
| Knowledge cutoff | Sep 2023 | Dec 2023 | Mar 31, 2024 |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- GPT-4o$45.00
- Llama-3.1-70B-Instruct$8.64
- Mistral Large 2407$32.00
Which should you choose?
Which is better: GPT-4o, Llama-3.1-70B-Instruct or Mistral Large 2407?
It is close. Our weighted score puts them within a point (Llama-3.1-70B-Instruct 43/100, GPT-4o 43/100, Mistral Large 2407 39/100), so choose by what matters most for your work: GPT-4o for raw capability, Llama-3.1-70B-Instruct on price and Mistral Large 2407 for long inputs. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.
Which is cheaper, GPT-4o, Llama-3.1-70B-Instruct or Mistral Large 2407?
Llama-3.1-70B-Instruct is cheaper at $0.72 input / $0.72 output per million tokens (median across 8 API providers). Mistral Large 2407 costs $2.00 input / $6.00 output per million tokens (median across 5 API providers); GPT-4o costs $2.50 input / $10.00 output per million tokens (official OpenAI API price). At a typical mix of three input tokens to one output token, that is $0.72 per million tokens for Llama-3.1-70B-Instruct versus $3.00 for Mistral Large 2407 (4.2× as much) and $4.38 for GPT-4o (6.1× as much).
Which scores higher on benchmarks?
GPT-4o scores higher on the Capabilities Index (ECI): GPT-4o 129.0 (#141 of 165), Mistral Large 2407 127.6 (#144 of 165) and Llama-3.1-70B-Instruct 125.9 (#149 of 165). The confidence ranges of the top two overlap (124.7–131.3 vs 123.3–129.4), so treat the gap as small. On individual benchmarks: GPQA Diamond — Mistral Large 2407 49.0%, GPT-4o 48.9%, Llama-3.1-70B-Instruct 44.2%; OTIS Mock AIME 2024–2025 — Mistral Large 2407 8.5%, GPT-4o 6.3%, Llama-3.1-70B-Instruct 3.6%.
Which is better for coding?
There are no published SWE-bench Verified results for GPT-4o, Llama-3.1-70B-Instruct and Mistral Large 2407 yet, so there is no like-for-like coding score. On overall capability, GPT-4o leads, which tends to carry over to coding, but test on your own codebase. All three support tool calling for agent workflows.
Which has the bigger context window?
Mistral Large 2407 has the largest context window at 131,072 tokens, against 128,000 for GPT-4o and 128,000 for Llama-3.1-70B-Instruct. Maximum output per response: GPT-4o up to 16,384, Llama-3.1-70B-Instruct up to 4,096, Mistral Large 2407 up to 104,857 tokens.
Which can read images, PDFs, audio or video?
GPT-4o accepts text, images and PDFs; Llama-3.1-70B-Instruct accepts text; Mistral Large 2407 accepts text and PDFs. GPT-4o handles the widest range of inputs.
Are any of these open source?
Llama-3.1-70B-Instruct and Mistral Large 2407 publishes its weights and can be self-hosted; GPT-4o is proprietary.
Which is newer?
Mistral Large 2407 is the newest, released Jul 24, 2024. Llama-3.1-70B-Instruct came out Jul 23, 2024; GPT-4o came out May 13, 2024. Knowledge cutoff: GPT-4o Sep 2023, Llama-3.1-70B-Instruct Dec 2023, Mistral Large 2407 Mar 31, 2024.
How do you decide the winner?
Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Nov 2, 2026.
