High-volume, cost-sensitive work
Choose Claude Opus 5
Claude Opus 5 costs 11% less on a typical mix of three input tokens for every output token ($10.00 against $11.25 per million tokens).
Chat Latest vs Claude Opus 5: price, context and capabilities
Choose Claude Opus 5 for high-volume, cost-sensitive work, writing and code generation, very long inputs and the latest release; on the other points the two are level or the data is missing.
In short
- Claude Opus 5 is 11% cheaper than Chat Latest at the headline price ($10.00 / 1M tokens vs $11.25 / 1M tokens).
- Claude Opus 5 reads more per request: 1M tokens against 400k.
- Claude Opus 5 is the newer model (July 2026, against May 5, 2026).
- Only Claude Opus 5 offers reasoning.
Which should you choose?
Each answer below comes straight from the published prices, specifications and independent benchmark results.
Writing and code generation
Choose Claude Opus 5
Claude Opus 5 charges $25.00 per million output tokens, against $30.00 for Chat Latest. Output dominates the bill when answers are long.
Very long inputs
Choose Claude Opus 5
Claude Opus 5 reads up to 1M tokens per request, against 400k for Chat Latest.
Latest release
Choose Claude Opus 5
Claude Opus 5 is the newer release (July 2026, against May 5, 2026 for Chat Latest).
Monthly cost at three volumes
| Volume | Chat Latest | Claude Opus 5 | Difference |
|---|---|---|---|
| Prototype: 1M input, 250K output tokens | $12.50 | $11.25 | Claude Opus 5, $1.25 less |
| Production: 20M input, 5M output tokens | $250.00 | $225.00 | Claude Opus 5, $25.00 less |
| Scale: 500M input, 100M output tokens | $5,500 | $5,000 | Claude Opus 5, $500.00 less |
Standard rates, without caching or batch discounts. Volumes are per month.
Specifications side by side
| Chat Latest | Claude Opus 5 | |
|---|---|---|
| Provider | OpenAI | Anthropic |
| Category | Language models | Language models |
| Status | Generally available | Legacy |
| Headline price | $11.25 / 1M tokens | $10.00 / 1M tokens |
| Input | $5.00 / 1M tokens | $5.00 / 1M tokens |
| Output | $30.00 / 1M tokens | $25.00 / 1M tokens |
| Cached input | $0.50 / 1M tokens | $0.50 / 1M tokens |
| Context window | 400k | 1M |
| Max output | 128k | 128k |
| Released | May 5, 2026 | July 2026 |
| Knowledge cutoff | April 2026 | No data |
| Licence | Proprietary | Proprietary |
| Capabilities | Vision, Tool calling, Structured output, Prompt caching, Batch API | Vision, Reasoning, Tool calling, Structured output, Prompt caching, Batch API |
| API model id | chat-latest | claude-opus-5 |
Benchmarks side by side
Leader in bold.
| Benchmark | Chat Latest | Claude Opus 5 |
|---|---|---|
| Intelligence Index | No data | 50.8 |
| SciCode | No data | 56.4% |
| GPQA Diamond | No data | 93.2% |
| Humanity's Last Exam | No data | 54.9% |
| MMMU-Pro (visual reasoning) | No data | 84.7% |
| Long-context reasoning (AA-LCR) | No data | 79.3% |
Independent evaluations by Artificial Analysis, run the same way for every model, at the reasoning setting shown. Percentages unless marked as an index.
Frequently asked questions
Should I choose Chat Latest or Claude Opus 5?
Choose Claude Opus 5 for high-volume, cost-sensitive work, writing and code generation, very long inputs and the latest release; on the other points the two are level or the data is missing.
Which is cheaper, Chat Latest or Claude Opus 5?
Claude Opus 5 is 11% cheaper than Chat Latest at the headline price ($10.00 / 1M tokens vs $11.25 / 1M tokens).
Which has the larger context window, Chat Latest or Claude Opus 5?
Claude Opus 5 reads more per request: 1M tokens against 400k.
What is the difference between Chat Latest and Claude Opus 5?
Chat Latest is made by OpenAI and Claude Opus 5 by Anthropic. Claude Opus 5 is 11% cheaper than Chat Latest at the headline price ($10.00 / 1M tokens vs $11.25 / 1M tokens). Claude Opus 5 reads more per request: 1M tokens against 400k. Claude Opus 5 is the newer model (July 2026, against May 5, 2026). Only Claude Opus 5 offers reasoning.
How much do Chat Latest and Claude Opus 5 cost per month?
At 20 million input and 5 million output tokens a month, Chat Latest costs $250.00 and Claude Opus 5 costs $225.00, at standard rates.
Which is newer, Chat Latest or Claude Opus 5?
Claude Opus 5 was released on July 2026 and Chat Latest on May 5, 2026.